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Roots

To consider whether botanical components within traditional oils can protect textured hair from environmental elements, we first journey into the deep well of shared human experience, a place where ancestral wisdom meets the very biology of our strands. For generations, before the advent of modern laboratories and synthetic compounds, communities across continents looked to the earth for remedies, for sustenance, and for adornment. This inquiry is not simply about chemical structures or molecular interactions; it is a profound meditation on the enduring legacy of care passed down through lineages, particularly within Black and mixed-race communities, where hair has always held a sacred position.

Each coil, curl, and wave tells a story, a chronicle of resilience woven into its very being. Environmental stressors—the relentless sun, drying winds, pervasive dust, or fluctuating humidity—have always presented challenges to hair health. Yet, our ancestors, with their intimate knowledge of local flora, devised ingenious methods to shield their crowns. This practice of anointing hair with plant-derived oils and butters was not merely a beauty ritual; it was a survival strategy, a practical application of botanical science honed over millennia.

The halved seed pod shows botanical beauty, mirroring intricate spiral textures and ancestral heritage similar complex formations are echoes of coils, afro-textured hair emphasizing the importance of natural plant ingredients for holistic nourishment and textured hair resilience, rooted in tradition.

Hair Anatomy and Textured Hair’s Ancestral Structure

The intrinsic architecture of textured hair, with its elliptical cross-section and unique curl patterns, renders it distinct from straighter hair types. This morphology, while beautiful, can make it more prone to dryness and breakage. The cuticle layers, which act as the hair’s outermost shield, may not lie as flat in highly coiled strands, leaving the inner cortex more exposed to external aggressors.

This biological reality, often viewed through a contemporary scientific lens, was intuitively understood by those who lived closely with their environment. They observed the way sun parched the strands, how dust settled, or how moisture seemed to vanish from the hair, leading them to seek solutions from their natural surroundings.

Ancestral wisdom concerning textured hair’s vulnerability to environmental elements led to ingenious botanical protective measures.

From the humid forests of West Africa to the arid expanses of the Sahel, communities identified specific plants whose lipid-rich extracts offered a visible defense. These plant components, rich in fatty acids, vitamins, and antioxidants, formed a protective coating, mimicking and augmenting the hair’s natural barrier. This foundational understanding, deeply embedded in heritage , forms the initial layer of our exploration.

The monochrome visual invites reflection on sustainable afro wellness and the rich heritage of plant-based textured hair care, deeply rooted in ancestral knowledge and holistic practices, echoing traditions to protect and nourish natural heritage.

Traditional Hair Care Lexicon and Its Botanical Origins

The language surrounding textured hair care, particularly in African and diasporic communities, is replete with terms that echo botanical wisdom. Words like “shea,” “cocoa,” “argan,” or “baobab” are not just names of ingredients; they are linguistic markers of a long history of botanical application for hair health. The very act of naming these components reflects their cultural significance and their perceived ability to interact with the hair’s physical needs.

  • Shea Butter (Butyrospermum parkii) ❉ A staple across West Africa, recognized for its ability to moisturize and protect hair from sun, wind, and heat.
  • Baobab Oil (Adansonia digitata) ❉ Derived from the “tree of life,” known for its moisturizing and antioxidant properties, shielding hair from environmental stressors like UV radiation.
  • Coconut Oil (Cocos nucifera) ❉ Used extensively in tropical regions, offering moisture and a barrier against humidity and protein loss.
  • Argan Oil (Argania spinosa) ❉ An ancestral treasure from Morocco, prized for its ability to restore softness, shine, and protect against environmental damage.

These terms, spoken in various dialects and languages across the diaspora, carry the weight of generations of knowledge. They represent a collective understanding of which plants offer relief from dryness, which strengthen the strand, and which create a shield against the elements. The continuous use of these terms in contemporary hair care discussions highlights the enduring heritage of botanical reliance.

This evocative monochromatic portrayal celebrates textured hair, highlighting its natural formations accentuated by geometric design elements, in a minimalist style. The image invites viewers to contemplate heritage, identity, and inherent beauty expressed through confident and authentic Black aesthetics.

Hair Growth Cycles and Environmental Influences through Time

Hair growth, a cyclical biological process, is influenced by myriad factors, including genetics, nutrition, and environmental conditions. Ancestral communities, though lacking modern scientific tools, understood these influences through observation and lived experience. A balanced diet, often rich in plant-based nutrients, supported healthy growth. Likewise, environmental aggressors—prolonged sun exposure, arid climates, or even dust-laden winds—were recognized as impediments to optimal hair health and length retention.

The application of traditional oils served not only as a protective measure but also as a means to create a favorable environment for growth. By minimizing moisture loss and reducing physical damage, these oils indirectly supported the hair’s natural growth cycle. This preventive approach, deeply rooted in ancestral practices, speaks to a profound connection between the human body, its environment, and the botanical world.

Botanical Component Shea Butter
Traditional Use for Hair (Heritage) Applied to protect from sun, wind, and heat; moisturizes and holds styles.
Modern Scientific Understanding of Protection Contains cinnamic acid for mild UV protection (SPF-6); rich in fatty acids and vitamins (A, E) that create a physical barrier and nourish.
Botanical Component Baobab Oil
Traditional Use for Hair (Heritage) Used for moisture and overall hair health in African communities.
Modern Scientific Understanding of Protection Antioxidants shield hair from UV radiation and pollution; vitamins A, D, E, F, and omega fatty acids strengthen strands.
Botanical Component Coconut Oil
Traditional Use for Hair (Heritage) Applied for conditioning, preventing breakage, and shine in tropical regions.
Modern Scientific Understanding of Protection Penetrates hair shaft, reducing protein loss and hygral fatigue; forms a hydrophobic barrier against moisture.
Botanical Component Argan Oil
Traditional Use for Hair (Heritage) Valued for repairing, protective, and beautifying properties, especially in Morocco.
Modern Scientific Understanding of Protection Rich in vitamin E, omega-6, and omega-9, strengthening hair fiber and protecting against environmental damage.
Botanical Component These botanical oils, central to textured hair heritage, illustrate how ancestral practices anticipated scientific principles of environmental defense.

Ritual

As we move from the elemental understanding of hair and botanicals, our focus shifts to the applied wisdom—the rituals and techniques that transformed raw plant materials into potent agents of care. This is where the knowledge of “Can botanical components in traditional oils protect textured hair from environmental elements?” truly comes alive, moving beyond theoretical possibilities into tangible, ancestral practices. It is a step into the shared spaces of kitchens, courtyards, and communal gatherings, where the rhythmic motions of hair care became a living testament to cultural continuity and a quiet defiance against the harshness of the world.

The application of oils was rarely a hurried affair; it was a deliberate, often communal, act, passed from elder to child. These practices were not isolated; they were deeply interwoven with daily life, social bonds, and the very expression of identity. The efficacy of these botanical components was proven not through clinical trials, but through generations of lived experience, through the health and vibrancy of the hair itself.

Botanical textures evoke the organic foundations of holistic hair care, mirroring Black hair traditions and mixed-race hair narratives. This leaf arrangement, reminiscent of ancestral heritage, connects natural ingredients with expressive styling for texture, promoting wellness and celebrating the artistry of textured hair formations.

Protective Styling ❉ Ancestral Roots and Botanical Aids

Protective styling, a cornerstone of textured hair care today, finds its deepest roots in ancestral practices designed to shield hair from environmental exposure. Braids, twists, and various forms of wrapping were not merely aesthetic choices; they served as ingenious mechanisms to minimize manipulation, retain moisture, and create a physical barrier against sun, dust, and friction. Traditional oils played a crucial supporting role in these styles.

Consider the cornrows of West Africa, or the elaborate braided styles seen in ancient Egyptian depictions. These styles, often intricately patterned, could take hours or even days to complete. During their creation, and for their maintenance, oils and butters like shea or palm oil were liberally applied. These applications provided lubrication, reducing friction during styling, and then sealed the hair, helping to keep environmental elements at bay.

The oils also contributed to the longevity of the styles, allowing them to remain intact for extended periods, further minimizing daily exposure. This synergy between styling and botanical application is a powerful testament to ancestral ingenuity.

Hands meticulously harvest aloe's hydrating properties, revealing ancestral traditions for healthy textured hair. This act reflects heritage's holistic approach, connecting natural elements with scalp and coil nourishment, celebrating deep-rooted practices for vibrant, resilient black hair.

Natural Styling and Defining Techniques ❉ The Role of Traditional Oils

Beyond long-term protective styles, traditional oils were also integral to defining and maintaining natural curl patterns. For many centuries, the goal was not to alter the hair’s intrinsic texture but to enhance its natural beauty and manageability. Oils helped to clump curls, reduce frizz, and impart a healthy sheen, making the hair appear more vibrant and resistant to environmental disruption.

How did these oils contribute to curl definition? Their lipid content would coat the hair shaft, reducing porosity and helping the hair absorb and retain moisture from the atmosphere without becoming overly swollen or frizzy. This occlusive layer acted as a shield, preventing rapid evaporation of internal moisture in dry climates and minimizing the penetration of excessive humidity in damp environments. This dual action allowed textured hair to maintain its defined shape, less susceptible to environmental forces that could disrupt its pattern.

  • Palm Oil ❉ Historically used in West and Central Africa for its conditioning properties and ability to add shine and suppleness to hair.
  • Castor Oil ❉ Widely used in African and Caribbean traditions, known for its thick consistency which provides a substantial coating and aids in moisture retention.
  • Olive Oil ❉ Employed in ancient Mediterranean and North African hair rituals for its emollient properties and ability to protect against UVB rays.

The wisdom of these practices lies in their practical application. A woman preparing her hair for the day might warm a small amount of shea butter between her palms, distributing it evenly through her braids or coils, knowing it would help her hair resist the day’s sun and dust. This was a direct, tangible way of using botanical components to protect textured hair from environmental elements, a daily ritual of care and preservation.

This monochromatic portrait embodies timeless beauty, showcasing the natural coil of her short coily hairstyle and subtle adornment of tiara, evoking heritage. The chiaroscuro lighting accentuates her features, harmonizing elements of ancestral legacy, confident expression, and modern elegance, representing holistic beauty.

Heat Styling and Historical Methods ❉ A Delicate Balance

While modern heat styling often involves high temperatures and specialized tools, historical methods of altering hair texture, even temporarily, also existed. These might involve heated combs or the use of hot stones, often accompanied by protective oils. The role of botanical components here was crucial ❉ to mitigate the potential damage from heat and to provide a barrier against the environmental stresses that could then further compromise the hair.

Traditional oils, with their heat-resistant properties, could serve as a buffer between the hair and the heat source. They would also help to seal the cuticle after heat application, preserving the newly formed style and offering some defense against humidity, which could quickly revert straightened strands. This historical context provides a counterpoint to contemporary concerns about heat damage, underscoring the long-standing understanding that protective agents were essential when heat was applied.

The ancestral application of traditional oils in hair care was a purposeful act, extending beyond aesthetics to serve as a vital defense against environmental challenges.

A study exploring the protective effects of natural oils on African hair, for example, found that certain oils, such as Abyssinian seed oil, offered benefits including maintaining cortex strength and mitigating solar radiation-induced melanin degradation. While this particular study did not find complete protection from solar damage, it did indicate reduced discoloration in oil-treated hair, suggesting a partial shield against environmental stressors. (ResearchGate,). This contemporary scientific observation echoes the long-held ancestral belief in the protective qualities of plant-derived lipids.

This monochrome still life of citrus remnants suggests the ancestral wisdom in utilizing natural extracts for textured hair. The photograph highlights the potential for holistic, botanical-based formulations to nurture hair's unique coil pattern, connecting wellness traditions with effective hair care practices.

The Textured Hair Toolkit ❉ Traditional Tools and Botanical Synergy

The tools of ancestral hair care were often simple yet effective, designed to work in concert with natural oils. Wide-toothed combs carved from wood, bone, or horn, and soft brushes made from natural fibers, were used to detangle and distribute oils evenly without causing undue stress to the hair. The synergy between these tools and the botanical components is noteworthy.

For instance, a wooden comb, when used with a generous application of oil, would glide through coiled strands more smoothly, reducing breakage from friction. The oil would condition the hair, making it more pliable and less susceptible to the mechanical stress of styling. This thoughtful pairing of tool and botanical agent created a regimen that was both gentle and effective, allowing the hair to retain its integrity and natural defenses against environmental elements. The toolkit, therefore, was not merely a collection of objects, but a living extension of a deeply rooted heritage of care.

Relay

To delve into the question of whether botanical components in traditional oils truly protect textured hair from environmental elements, we must transcend a simplistic view of cause and effect. This inquiry invites us into a complex interplay of historical resilience, molecular science, and the profound cultural significance of hair. How do the ancient practices, often dismissed as mere folk remedies, stand up to modern scientific scrutiny, and what enduring lessons do they hold for our contemporary understanding of textured hair health and its relationship to the natural world? This section bridges the temporal divide, seeking to illuminate the sophisticated mechanisms behind ancestral botanical applications and their ongoing relevance.

The relay of knowledge, from elder to youth, from ancient observation to modern laboratory, reveals a continuous thread of wisdom. It is a dialogue between the empirical evidence gathered over generations and the analytical tools of today, both seeking to comprehend the intrinsic capabilities of botanical components to safeguard our strands against the persistent forces of nature.

Invoking centuries of heritage, this image reveals a connection to natural sources. The practice reminds us of the traditional wisdom passed down through generations. It exemplifies the importance of botanical ingredients for textured hair's holistic vitality, mirroring nature's gentle embrace and promoting authentic ancestral practices.

Environmental Stressors ❉ A Scientific Look at Ancient Challenges

Textured hair, by its very morphology, presents a greater surface area and more points of structural weakness compared to straighter hair types. This makes it particularly susceptible to environmental stressors.

UV Radiation ❉ Sunlight, a ubiquitous environmental factor, comprises ultraviolet (UV) radiation that can degrade hair’s keratin structure, leading to dryness, color fading, and loss of mechanical strength. Melanin, the pigment responsible for hair color, offers some natural protection, but prolonged exposure still causes damage.

Humidity Fluctuations ❉ Textured hair is highly hygroscopic, meaning it readily absorbs and releases moisture from the air. In humid conditions, hair can swell, leading to frizz and loss of curl definition. In dry conditions, it can lose moisture rapidly, becoming brittle and prone to breakage. This constant swelling and shrinking, known as hygral fatigue, compromises the hair’s structural integrity.

Particulate Matter and Pollutants ❉ Dust, smoke, and urban pollutants can settle on hair, causing physical abrasion, dullness, and potentially leading to scalp irritation. These particles can also carry free radicals, contributing to oxidative stress on the hair shaft.

The protective qualities of traditional botanical oils are often attributed to their unique biochemical profiles. For instance, shea butter contains cinnamic acid esters, which have been shown to absorb UV radiation, offering a natural, albeit mild, sunscreen effect (Falconi, as cited in SheaButter.net,). This chemical property, recognized in modern analysis, aligns with its centuries-old use in West Africa to shield hair from intense sun.

Similarly, baobab oil, rich in antioxidants like vitamins A and E, helps neutralize free radicals generated by UV exposure and pollution, thus protecting the hair from oxidative damage (Donkor et al. 2014, as cited in Jules Of The Earth,).

A grayscale exploration of lemon anatomy evokes natural parallels with textured hair its innate architecture, care methods and ancestry. These slices represent botanical elements traditionally used in nourishing rituals, a link between holistic wellness and deeply rooted heritage.

Botanical Components ❉ Mechanisms of Protection

The protective capabilities of traditional oils are multi-layered, operating through physical, chemical, and biological mechanisms.

  1. Occlusion and Barrier Formation ❉ Many traditional oils, particularly those with higher viscosity or saturated fatty acid content, create a physical barrier on the hair’s surface. This occlusive layer helps to seal in moisture, preventing its escape in dry conditions, and simultaneously reduces the penetration of external moisture in humid environments, thereby mitigating hygral fatigue. Coconut oil, for example, is renowned for its ability to penetrate the hair shaft and reduce protein loss, but it also forms a surface barrier that helps maintain moisture balance.
  2. Antioxidant Activity ❉ Environmental elements often induce oxidative stress, generating free radicals that damage hair proteins and lipids. Botanical oils are often rich in natural antioxidants, such as tocopherols (Vitamin E), carotenoids, and polyphenols. These compounds scavenge free radicals, minimizing their destructive impact on the hair structure. Marula oil and baobab oil, both prominent in African hair care heritage , are recognized for their significant antioxidant content.
  3. UV Absorption ❉ Certain botanical components possess chromophores that can absorb specific wavelengths of UV radiation, converting it into harmless heat or a different form of energy. Beyond cinnamic acid in shea butter, some research suggests that oils like red raspberry seed oil can absorb a broad spectrum of UV rays, providing natural photoprotection. While not a substitute for dedicated sunscreens, their historical application offered a measure of defense.
  4. Hydrophobic Properties ❉ Oils are inherently hydrophobic, meaning they repel water. When applied to hair, they can reduce its porosity, making it less susceptible to rapid changes in moisture content from the surrounding atmosphere. This is particularly relevant for textured hair, which can swell and frizz when exposed to high humidity. The hydrophobic coating helps maintain the hair’s structural integrity and defined curl pattern.

Traditional botanical oils shield textured hair through physical barriers, antioxidant action, UV absorption, and hydrophobic properties, echoing ancestral wisdom with scientific validation.

The monochrome image captures a nightly self-care ritual, securing a silk bonnet to protect textured hair and preserve moisture, reflecting ancestral heritage and Black hair traditions rooted in maintaining healthy, well-hydrated coils, promoting wellness and embracing the natural beauty of coiled formations.

The Interconnectedness of Heritage, Science, and Environmental Defense

The enduring use of botanical oils in textured hair care across generations and geographies is not coincidental. It speaks to an ancestral scientific method, a process of observation, experimentation, and refinement that predates formal laboratories. The effectiveness of these traditional oils in protecting textured hair from environmental elements is increasingly validated by modern scientific inquiry.

Consider the Himba people of Namibia, whose traditional practice involves coating their hair and skin with a mixture of ochre and butterfat (otjize). This ancestral ritual, passed down through generations, serves not only as an aesthetic and cultural marker but also as a practical defense against the harsh desert sun and dry winds (Crabtree, 2017). The butterfat provides a physical barrier, while the ochre, a natural mineral pigment, contributes to UV protection.

This is a powerful historical example of botanical and natural material application for environmental defense, deeply woven into their heritage . This practice illustrates a sophisticated, empirically derived understanding of environmental protection long before the terms “UV filter” or “emollient” entered scientific discourse.

The cultural significance of hair within Black and mixed-race communities often meant that hair care was not just about physical health but also about spiritual and communal well-being. The act of oiling hair, of braiding it into protective styles, became a ritual of self-preservation, a way to maintain beauty and dignity amidst challenging environmental and social conditions. The oils themselves, sourced from local plants, became symbols of connection to the land and to ancestral knowledge.

The current resurgence of interest in traditional hair care practices and natural ingredients is a testament to this enduring wisdom. Consumers today seek products that are not only effective but also align with values of authenticity, sustainability, and cultural connection. The botanical components in traditional oils stand as a bridge between the deep past and the present, offering time-tested solutions for modern environmental challenges faced by textured hair. The relay of this knowledge continues, affirming that the answers to contemporary questions often lie in the echoes of ancestral practices.

Reflection

The journey through the intricate world of botanical components in traditional oils, and their protective power for textured hair, brings us to a quiet moment of contemplation. This exploration has not merely cataloged ingredients or detailed scientific mechanisms; it has traced a living lineage of care, a continuous conversation between human ingenuity and the generosity of the earth. The ‘Soul of a Strand’ ethos, with its reverence for Textured Hair Heritage , finds profound validation in these ancient practices.

From the very genesis of textured hair’s unique structure, through the deliberate rituals of ancestral hands, to the validation offered by contemporary science, a singular truth emerges ❉ the protective qualities of traditional oils are not a myth of a bygone era. They are a deeply embedded wisdom, a testament to communities who understood, with an intuitive precision, how to draw sustenance and shield from the natural world. This enduring legacy speaks to the power of observation, the strength of cultural continuity, and the inherent resilience of textured hair itself. Our understanding of these botanical components is a constant rediscovery, an ongoing dialogue with the past that illuminates pathways for the future, ensuring that the stories held within each strand continue to be honored and preserved.

References

  • Crabtree, J. (2017). Hair ❉ A Cultural History. New York ❉ Bloomsbury Academic.
  • Manniche, L. (1999). Sacred Luxuries ❉ Fragrance, Aromatherapy, and Cosmetics in Ancient Egypt. Ithaca ❉ Cornell University Press.
  • ResearchGate. (2020). African hair ❉ exploring the protective effects of natural oils and silicones. ResearchGate.
  • SheaButter.net. (n.d.). A History of Shea Butter.
  • Jules Of The Earth. (n.d.). Baobab Oil ❉ Africa’s Ancient Beauty Secret for Radiant Skin and Hair.

Glossary

environmental elements

Meaning ❉ Environmental Elements encompass all external forces—physical, chemical, social, and cultural—that shape textured hair's health, appearance, and historical significance.

botanical components

Shea butter's components aid the scalp barrier by mimicking natural lipids, providing deep moisture, and soothing irritation, continuing a heritage of textured hair care.

environmental stressors

Meaning ❉ Environmental Stressors are external forces that compromise textured hair health, shaping ancestral care practices and cultural identity across generations.

hair health

Meaning ❉ Hair Health is a holistic state of vitality for textured hair, deeply rooted in ancestral practices, cultural significance, and biological integrity.

textured hair

Meaning ❉ Textured Hair, a living legacy, embodies ancestral wisdom and resilient identity, its coiled strands whispering stories of heritage and enduring beauty.

west africa

Meaning ❉ West Africa represents the foundational ancestral homeland and cultural wellspring of textured hair heritage, shaping global Black and mixed-race hair experiences.

textured hair care

Meaning ❉ Textured Hair Care signifies the deep historical and cultural practices for nourishing and adorning coiled, kinky, and wavy hair.

shea butter

Meaning ❉ Shea Butter, derived from the Vitellaria paradoxa tree, represents a profound historical and cultural cornerstone for textured hair care, deeply rooted in West African ancestral practices and diasporic resilience.

baobab oil

Meaning ❉ Baobab Oil, derived from the African "Tree of Life," is a nourishing elixir deeply rooted in ancestral hair care traditions for textured strands.

barrier against

Meaning ❉ The Lipid Barrier is a vital fatty layer on hair, crucial for moisture retention and protection, deeply connected to textured hair heritage and ancestral care practices.

against environmental

Historical botanical oils, like shea butter and castor oil, provided textured hair with essential protection against environmental elements through ancestral wisdom.

hair care

Meaning ❉ Hair Care is the holistic system of practices and cultural expressions for textured hair, deeply rooted in ancestral wisdom and diasporic resilience.

modern scientific

Traditional hair oil practices offer a rich heritage of botanical knowledge, providing insights into moisture retention and scalp health that enhance modern scientific understanding of textured hair's unique needs.

ancestral practices

Meaning ❉ Ancestral Practices refers to the inherited wisdom and methodologies of textured hair care and adornment rooted in historical and cultural traditions.

traditional oils

Meaning ❉ Traditional Oils, drawn from botanical sources and passed down through lineages, represent a gentle, time-honored approach to Black and mixed-race hair care.

protect textured

Ancestral oils, deeply rooted in textured hair heritage, protect strands by creating a moisture-sealing barrier against environmental elements.

physical barrier

Textured hair transcends its physical form to embody a rich heritage of identity, communication, and spiritual connection across diverse cultural landscapes.

hair shaft

Meaning ❉ The Hair Shaft is the visible filament of keratin, holding ancestral stories, biological resilience, and profound cultural meaning, particularly for textured hair.

african hair

Meaning ❉ African Hair identifies the diverse spectrum of natural hair structures primarily observed within populations of African lineage, characterized by distinctive curl formations, ranging from gentle waves to tightly coiled patterns.

ancestral hair care

Meaning ❉ Ancestral Hair Care describes the thoughtful reception and contemporary application of time-honored practices and deep understanding concerning Black and mixed-race textured hair, passed through generations.

traditional botanical oils

Meaning ❉ Traditional Botanical Oils are plant-derived essences, deeply rooted in ancestral practices, providing profound nourishment and cultural significance for textured hair heritage.

botanical oils

Meaning ❉ Botanical oils, for those understanding the distinct characteristics of textured hair, are pure lipid extractions from plants—think seeds, nuts, or fruits—containing vital fatty acids, vitamins, and phytosterols.

environmental protection

Meaning ❉ Environmental Protection, when considered for textured hair, refers to the mindful safeguarding of delicate coils and scalp from external atmospheric influences.

textured hair heritage

Meaning ❉ "Textured Hair Heritage" denotes the deep-seated, historically transmitted understanding and practices specific to hair exhibiting coil, kink, and wave patterns, particularly within Black and mixed-race ancestries.