
Roots
The whisper of generations, carried on the very wind that once rustled through ancient African landscapes, settles upon the strands that crown our heads today. Our hair, a living archive, tells a story far older than any written text. It holds the echoes of hands that tended, ingredients that nourished, and wisdom passed down through ancestral lines. To truly understand our hair in this modern moment, particularly its capacity to absorb and retain moisture – a characteristic we now label Porosity – we must first journey back to its fundamental origins, recognizing it not merely as a biological structure, but as a repository of our collective human experience, especially for those of Black and mixed-race lineage.
Hair, across all human experiences, emerges from the follicle, a protein filament primarily composed of keratin. Yet, the exquisite diversity of textured hair, from the softest wave to the tightest coil, speaks to a unique genetic blueprint. The outermost layer, the Cuticle, consists of overlapping scales, much like shingles on a roof. These scales, when healthy, lay flat, safeguarding the inner cortex.
The way these cuticles are arranged, their inherent openness or closeness, dictates how readily moisture enters and leaves the hair shaft. This, at its most elemental, is porosity. For individuals with Afro-textured hair, the helical structure of the strand often means natural variations in cuticle layering, which can lead to a higher predisposition to certain porosity characteristics.

What Did Ancestors Know About Hair’s Nature?
Long before the scientific lens isolated the term ‘porosity,’ ancestral communities possessed a profound, intuitive grasp of their hair’s responsiveness to its environment and the substances applied to it. In pre-colonial Africa, hair care practices were deeply intertwined with identity, social standing, age, marital status, and spiritual connection. Hair was often viewed as a conduit to the divine, a literal extension of the self into the spiritual realm (BLAM UK CIC, 2022). Care rituals were not random acts; they were precise, generationally refined responses to what we now understand as hair’s inherent needs.
The application of rich, natural butters, select plant oils, and powdered herbs served purposes far beyond mere adornment. These traditional substances, derived from local flora, acted as emollients, humectants, and sealants, intuitively addressing the hair’s need for moisture and its tendency to release it. Consider the widespread use of shea butter, often known as Karite Butter, across West Africa.
Its rich, occlusive properties would have served to coat hair strands, assisting in sealing the cuticle and diminishing moisture loss, a practice particularly beneficial for hair with a naturally more open cuticle structure, what we now call high porosity. This ancestral knowledge, garnered through centuries of observation and practical application, formed the foundational care for hair that, in many instances, tended towards higher porosity due to its natural coil and curl patterns.
Ancestral hair practices, though lacking modern scientific labels, inherently responded to hair’s intrinsic characteristics, including its moisture absorption and retention capabilities.
The resilience embedded within Black and mixed-race hair heritage is not just about survival; it speaks to a deep, living understanding of hair’s properties. Historical records, such as those detailing the ingenious ways enslaved Africans used cornrows to conceal rice seeds or maps during the Transatlantic slave trade, reveal an intricate knowledge of hair’s physical capacity and how it could be manipulated and secured (Byrd and Tharps, 2001; BLAM UK CIC, 2022). This demonstrates an awareness of the hair’s outer structure, similar to how porosity shapes absorption and retention, albeit applied for profound survival and cultural preservation.

Ritual
The rhythms of hair care, from the ancestral village to the contemporary salon, always possessed a ritualistic quality. These rituals were not solely about hygiene or beauty; they were profoundly communal, transmitting lore, reinforcing bonds, and celebrating identity. Within these historical rites, the inherent characteristics of hair, including its porosity, were unconsciously acknowledged and cared for through specific techniques, tools, and plant-based concoctions.

How Did Ancestral Practices Address Moisture Balance?
Across various African societies, hair care was a significant activity where genealogies and cultural features were imparted to younger generations (Wikipedia, 2024). The specific care rituals varied by ethnic group and status (Wikipedia, 2024). The use of rich, natural ingredients stands as a testament to this deep understanding. For instance, in parts of Southwest Nigeria, phytocosmetics, or plant-based beauty practices, utilized species like Azadirachta Indica (neem) for hair care and Lawsonia Inermis (henna) as a hair gel (Sharaibi et al.
2024). These botanical resources, often fats, minerals, and plants, comprised the core of traditional cosmetics across Africa (Sharaibi et al. 2024).
- Shea Butter (Vitellaria paradoxa) ❉ Revered across West Africa, this butter, often applied generously, formed a protective barrier, thereby slowing moisture escape from the hair shaft, particularly beneficial for hair with open cuticles.
- Palm Oil (Elaeis guineensis) ❉ Used widely for its nourishing properties, it provided a rich coating to the hair, preventing dryness and aiding in moisture retention, a vital function for hair that readily absorbs and loses water.
- African Black Soap (Diospyros spp.) ❉ Utilized as a gentle cleanser, it removed impurities without stripping natural oils, thereby maintaining the hair’s natural moisture balance, important for all porosity types but especially sensitive for low porosity hair prone to buildup.
The application methods were also crucial. Techniques like braiding and threading were not merely stylistic; they were often Protective Styles (Healthline, 2019). These elaborate forms, passed through generations, minimized manipulation and exposure to environmental stressors, thereby helping to preserve the integrity of the hair’s outer layer, the cuticle. For hair with more open cuticles, these styles served as a physical seal, working in concert with emollients to lock in hydration and prevent rapid drying.
Traditional protective styles and natural ingredient applications intuitively supported moisture equilibrium, especially for highly absorbent hair.
Consider the Zulu Tribe’s Bantu Knots or the Maasai Tribe’s Ceremonial Locks; these styles involved careful sectioning and manipulation, often incorporating natural substances (Diane Da Costa, 2023). While the science of porosity was not articulated, the experiential knowledge of what hair needed to remain supple, strong, and vibrant was implicitly understood and meticulously applied. The time and communal effort invested in these practices highlight the value placed on hair’s health and appearance, recognizing its unique needs.
Today, we classify hair porosity into three broad categories ❉ low, medium, and high (Sol de Janeiro, 2023).
| Porosity Type Low Porosity |
| Hair Characteristics Cuticles tightly packed, resistant to moisture, prone to product buildup. |
| Traditional Practice Alignment Gentle cleansing, careful application of lighter oils, steam from warm water (e.g. during hair washing) to encourage cuticle opening. |
| Porosity Type Medium Porosity |
| Hair Characteristics Balanced moisture absorption and retention, versatile, retains styles well. |
| Traditional Practice Alignment Regular nourishment, adaptable to various natural treatments, practices focused on maintenance rather than correction. |
| Porosity Type High Porosity |
| Hair Characteristics Cuticles open, absorbs moisture quickly but loses it rapidly, prone to dryness, frizz, and breakage. |
| Traditional Practice Alignment Consistent use of heavier butters and oils as sealants, protective styling, emphasis on deep conditioning and restorative plant treatments. |
| Porosity Type Understanding these distinctions helps us connect ancestral wisdom to modern hair care for optimal results. |

Relay
The journey of hair porosity, from intuitive understanding to scientific articulation, reflects a broader continuum of knowledge, linking the ancient with the contemporary. The natural hair movement, which surged in the 1960s and then again in the 2000s, represents a powerful reclaiming of ancestral aesthetics and a deeper engagement with the inherent qualities of textured hair (JSTOR Daily, 2019). This movement has propelled a renewed focus on understanding hair’s structure and behavior, including porosity, providing scientific validation for many long-standing traditional practices.

How Does Modern Science Affirm Ancestral Hair Wisdom?
Modern trichology now provides a detailed lens through which to observe the properties of hair, confirming much of what ancestral practitioners understood through generations of observation. Porosity, as a scientific concept, describes the cuticle’s integrity and how it influences water uptake (NYSCC, 2020). Research confirms that textured hair, particularly curly and coily types, tends to have more porous qualities than straight hair (NYSCC, 2020).
A study presented at the TRI/ITC Multi-Ethnic Hair and Scalp Care Symposium in 2020 revealed that a significant portion of African consumers, 70-80%, already perceive their hair as having medium-high porosity, reflecting an intuitive alignment with scientific observations about water uptake and swelling in curly hair (Weimann, 2020). This contemporary consumer perception mirrors the historical understanding that hair needed diligent moisture management.
The impact of historical oppression, particularly the forced assimilation of Eurocentric beauty standards, led many Black individuals to chemically alter their hair, often through the use of relaxers and hot combs (Healthline, 2019). These processes, while aiming for a desired aesthetic, significantly compromised the hair’s structural integrity. Chemical treatments and heat styling are known to increase hair porosity, leading to increased damage and moisture loss (Evans, 2008 cited in KeraVada, 2024; Healthline, 2019; ResearchGate, 2025). This creates a vicious cycle where damaged, high-porosity hair struggles even more to retain the moisture it desperately needs.
Modern scientific understanding of porosity validates centuries of ancestral wisdom concerning textured hair’s intrinsic moisture needs.
The resurgence of the natural hair movement has prompted scientific investigation into textured hair, with studies now identifying genetic factors that influence cuticle structure and lipid production, directly impacting porosity (Johnson et al. 2020 cited in KeraVada, 2024). This intersection of genetics, hair care, and cultural practice is a testament to the complex legacy of textured hair.

What Can We Learn From Traditional Ingredients Now?
Many traditional ingredients, long used in ancestral hair care, hold demonstrable benefits when understood through a porosity lens.
- Ziziphus Spina-Christi ❉ In northeastern Ethiopia, the pounded leaves of this plant are mixed with water and used as a shampoo, sometimes combined with henna as a hair mask (Ethnobotany Research and Applications, 2025). Its cleansing properties, without harsh stripping, would be beneficial for maintaining cuticle integrity across porosity types.
- Sesamum Orientale (Sesame) ❉ Also noted in Ethiopian ethnobotanical studies, sesame extracts are used for hair care (Ethnobotany Research and Applications, 2025). As a light oil, it could offer nourishing benefits for lower porosity hair that struggles with heavier products, or provide a sealing layer for higher porosity strands without weighing them down.
- Moringa Oleifera ❉ This plant, used for its nourishing properties in various cosmetic products globally, including moisturizers and conditioners (Yadav & Chowdhury, 2023 cited in IGI Global, 2024), aligns with ancestral wisdom of utilizing readily available natural resources for comprehensive hair health.
The beauty industry, increasingly recognizing the unique requirements of textured hair, has begun to create specialized products that address porosity levels, building upon the foundations laid by early Black entrepreneurs like Madam C.J. Walker (Refinery29, 2021). This modern approach, however, gains profound depth when informed by the continuity of ancestral wisdom, offering solutions that honor the hair’s inherited nature. The CROWN Act, passed in many states, protects against discrimination based on hair texture and styles (Healthline, 2023; NMAAHC, 2023), recognizing that textured hair and its care are not merely aesthetic choices, but deeply personal and cultural expressions rooted in a rich heritage.

Reflection
Our strands hold more than just protein; they hold memory, resilience, and an unbroken lineage. The conversation around hair porosity, though framed in contemporary scientific terms, is but a modern articulation of age-old observations and responses. From the meticulous braiding patterns that signaled status in ancient African societies to the purposeful application of nourishing plant butters, every ritual, every ingredient, and every style was a direct engagement with the hair’s intrinsic nature—its very capacity to receive and hold life-giving moisture.
The journey from ancestral intuitive wisdom to today’s precise scientific understanding is not a divergence; it is a continuity. It is a story of understanding that the unique characteristics of Black and mixed-race hair, often misinterpreted or devalued in dominant narratives, are in fact a source of profound strength and adaptability. This living archive of hair heritage reminds us that self-acceptance and holistic care are not recent inventions, but deeply rooted practices that connect us to the enduring soul of every strand.

References
- Byrd, A. & Tharps, L. (2001). Hair Story ❉ Untangling the Roots of Black Hair in America. St. Martin’s Press.
- BLAM UK CIC. (2022, September 15). The history of Black Hair.
- Diane Da Costa. (2023). History of the Natural Texture Hair Movement.
- Ethnobotany Research and Applications. (2025, May 30). Plants used for hair and skin health care by local communities of Afar, Northeastern Ethiopia.
- Healthline. (2019, September 19). High Porosity Hair ❉ Characteristics, Products, and Tips for Care.
- Healthline. (2023, August 16). Strands of Inspiration ❉ Exploring Black Identities through Hair.
- IGI Global. (2024). Ethnobotanical Advancements in Contemporary Skincare.
- JSTOR Daily. (2019, July 3). How Natural Black Hair at Work Became a Civil Rights Issue.
- KeraVada. (2024, July 29). Unraveling the Mystery of Hair Porosity (Low and High) ❉ A Deep Dive.
- NYSCC. (2020, November 11). An Overview on Hair Porosity.
- Refinery29. (2021, February 23). The Evolution Of The Natural Hair Movement.
- ResearchGate. (2025, May 9). Porosity and Resistance of Textured Hair ❉ Assessing Chemical and Physical Damage Under Consumer-Relevant Conditions.
- Sharaibi, O. J. Oluwa, O. K. Omolokun, K. T. Ogbe, A. A. & Adebayo, O. A. (2024, April 19). Cosmetic Ethnobotany Used by Tribal Women in Epe Communities of Lagos State, Nigeria. Juniper Publishers.
- Sol de Janeiro. (2023). Understanding Hair Porosity and How it Affects Hair Care.
- Weimann, E. (2020, November 2). Hot Topics in Textured Hair Research ❉ Hair Porosity and Hair Braiding Damage.
- Wikipedia. (2024, May 19). Natural hair movement.