
Roots
Across generations, from the sun-drenched savannas to the vibrant market squares, textured hair has always held a sacred position. It stands as a living chronicle, bearing the stories of kinship, resilience, and identity etched into each curl and coil. This deep bond between hair and heritage reaches into the very fabric of existence, encompassing even the most elemental forces. Among these, the subtle yet potent influence of pH—a measurement of acidity or alkalinity—has always shaped the relationship between humans and their hair.
Our ancestors, through careful observation and inherited wisdom, crafted practices that, perhaps unknowingly, worked in concert with this invisible scale. They understood that healthy hair was alive, a reflection of holistic well-being, and they nurtured it with reverence.
The natural world provided the palette for these early hair traditions. The leaves of plants, the ash of fire, the very waters of the earth—each carried its own inherent chemical signature. Consider the slight acidity of healthy skin and hair, a delicate protective mantle. This natural acidity, typically resting between 4.5 and 5.5 on the PH Scale, helps keep the hair’s outermost layer, the cuticle, smooth and closed.
This protective closure ensures moisture stays within the strand, guarding against dryness and breakage. When hair is happy in this slightly acidic range, it possesses a natural sheen, reflecting light with a quiet dignity. The wisdom of our forebears, though not articulated in scientific terms, often intuitively guided them toward practices that honored this fundamental balance.

What Is the Hair’s Innate Chemical Balance?
The textured hair strand, a marvel of biological architecture, possesses an inherent chemical equilibrium. At its core, the hair fiber is composed of keratin proteins, intricate structures that are particularly sensitive to their surrounding environment’s pH. When exposed to substances with a pH significantly higher than its natural, slightly acidic state, the hair cuticle tends to lift and swell. This opening, while sometimes desirable for allowing ingredients to penetrate, also exposes the hair’s inner cortex, rendering it vulnerable to moisture loss and structural strain.
Conversely, an environment that is too acidic can cause excessive tightening of the cuticle, which might lead to stiffness and even hinder the hair’s natural flexibility. Understanding this biological dance of ions is essential for comprehending the historical efficacy of ancestral hair care.
Across various traditional communities, observations regarding certain plant properties and their effects on hair were passed down through generations. Some cultures relied on acidic fruit rinses, perhaps recognizing the tangible difference these made in the hair’s manageability and appearance. Others might have used alkaline earth materials for cleansing, followed by restorative plant-based applications.
These were not random acts; they were responses to the hair’s observable reaction to its environment, a testament to keen ancestral insight. Such practices, whether conscious of the exact pH numbers or not, spoke to a collective understanding of what made hair thrive and retain its vitality.
- Keratin Proteins ❉ The fundamental building blocks of hair, sensitive to pH shifts.
- Hair Cuticle ❉ The outer protective layer, opening in alkaline conditions and closing in acidic ones.
- Acid Mantle ❉ The natural, slightly acidic film on the scalp and hair, guarding against microbial growth.
The enduring legacy of these practices speaks to an intuitive science that transcended formal laboratories. Each generation, in its own way, continued to refine and adapt these principles, ensuring that the vibrancy of textured hair endured through changing climates and eras. The practices themselves became part of a larger heritage, intertwined with daily life, community, and identity.

Ritual
The daily and ceremonial acts of tending to textured hair have always been more than mere routines; they are Sacred Rituals, living narratives passed through time. These rituals, deeply rooted in ancestral wisdom, often intertwined with the subtle science of pH, long before such terms existed. The chosen cleansers, the conditioning concoctions, the very waters used for rinsing—each played a part in shaping the hair’s health and appearance. Understanding how pH, in its broadest sense, influenced these traditions unlocks a deeper appreciation for the ingenuity embedded in Black and mixed-race hair practices.
Consider the historical application of natural substances for cleansing. For centuries, communities in West Africa have utilized African Black Soap (also known as Anago Soap or Dudu-Osun) for both skin and hair. This traditional cleanser, crafted from ingredients such as plantain skin ash, cocoa pods, and shea bark, possesses an inherently alkaline pH, often ranging between 9 and 10.
While exceptionally effective at removing dirt and product buildup, this high alkalinity, if left unchecked, could leave the hair feeling dry or stripped. The genius of ancestral practice, however, frequently provided a counterpoint.

How Did Traditional Cleansing Practices Balance Hair?
The inherent alkalinity of traditional cleansers like African black soap necessitated subsequent steps to restore the hair’s balance. Historical practices often included acidic rinses derived from natural sources. For instance, the use of diluted fruit acids, such as those from citrus or fermented plant materials, or even simpler, more universally accessible options like diluted Vinegar Solutions, served as a natural counterbalance. These acidic rinses would help to smooth the opened hair cuticle, sealing in moisture and imparting a natural shine.
This cyclical approach of cleansing and rebalancing speaks to a profound observational understanding of hair’s needs, even without the modern vocabulary of pH. The knowledge that followed a strong cleanse, a restorative step was needed, was fundamental.
Ancestral hair rituals, though not framed in scientific lexicon, often demonstrated an intuitive understanding of pH balance through their use of cleansing and rebalancing agents.
The evolution of styling, from intricate braids reflecting social status to protective coifs, also interacted with the hair’s chemical state. Hair that was supple and properly conditioned, with a balanced pH, was more amenable to these complex designs. Dry, brittle hair, often a result of prolonged exposure to imbalanced pH, would resist styling and be prone to breakage.
This practical reality reinforced the importance of careful preparation and aftercare, cementing the rituals as foundational to both aesthetics and hair health. The very tools of adornment—bone combs, wooden picks—were used on hair that was intentionally prepared, often through conditioning practices that supported its structural integrity.
| Ingredient (Common & Traditional) African Black Soap (Alata Samina) |
| Traditional Use Cleansing, detoxifying scalp |
| General PH Implication Alkaline (pH 9-10), effective cleanser. |
| Ingredient (Common & Traditional) Apple Cider Vinegar (diluted) |
| Traditional Use Rinse, detangling, shine |
| General PH Implication Acidic (pH ~2.5-3.0), helps close cuticles. |
| Ingredient (Common & Traditional) Aloe Vera |
| Traditional Use Soothing scalp, moisturizing, conditioning |
| General PH Implication Slightly acidic to neutral (pH ~4.0-7.0), balancing. |
| Ingredient (Common & Traditional) Shea Butter (Karité) |
| Traditional Use Moisturizing, softening, protective |
| General PH Implication Neutral to slightly acidic, conditioning. |
| Ingredient (Common & Traditional) Plantain Leaves/Ash |
| Traditional Use Key component of black soap |
| General PH Implication Contributes to alkalinity for soap formation. |
| Ingredient (Common & Traditional) Understanding these traditional materials reveals an enduring connection between natural elements and hair well-being across generations. |
The knowledge transmitted through these rituals extends beyond merely cleaning or styling; it embodies a holistic philosophy of care. The preparations, often involving communal gatherings and shared wisdom, reinforced cultural bonds. The choice of ingredients, sourced from the immediate environment, also spoke to a harmony with nature and an intrinsic respect for its offerings. The nuanced effects of these natural elements on the hair, including their inherent pH, were understood through tangible results and centuries of collective experience, forging a heritage of care that continues to influence contemporary practices.

Relay
The journey of textured hair through time is a profound narrative of resilience, identity, and the enduring influence of heritage, particularly in the face of imposed beauty standards. This narrative is nowhere more sharply illuminated than in the history of chemical hair relaxers—a practice that, for generations, dramatically reshaped the physical structure of textured hair and, with it, the relationship many Black and mixed-race individuals held with their natural selves. The scientific understanding of pH is central to comprehending the profound impact of this cultural shift.
Chemical relaxers, at their core, are highly alkaline formulations, designed to permanently alter the tightly coiled structure of textured hair. Early “lye” relaxers, primarily containing Sodium Hydroxide, operated at an exceptionally high pH, often soaring to 12.5 to 14 (Dube et al. 2020). To contextualize this, a pH of 10.5 is classified as an irritant, and anything above 11.5 is considered corrosive to skin according to global occupational health and safety guidelines.
The sheer alkalinity of these products broke the hair’s disulfide bonds, the very anchors of its natural curl pattern, rendering it straight. While seemingly offering freedom from the perceived “unruliness” of natural hair in a society that often demonized it, this process often came at a significant cost to the hair’s integrity and, in many cases, to scalp health.

What Were the Effects of High PH Relaxers on Hair Health?
The extreme alkaline environment created by relaxers had a devastating effect on the hair’s natural acidic mantle and cuticle structure. The high pH forced the cuticles to swell and lift, leaving the inner cortex exposed and vulnerable. This chemical assault led to a loss of essential proteins and lipids, causing the hair to become brittle, dry, and prone to breakage. Beyond the hair shaft itself, the scalp, too, suffered.
Chemical burns, irritation, and inflammation were common occurrences, sometimes leading to long-term issues like Traction Alopecia—a form of hair loss resulting from prolonged tension on the hair follicles (Dube et al. 2020). The constant need for reapplication as new growth emerged further exacerbated this cycle of damage, creating a perpetual dependency on a product that undermined the very health of the hair it sought to “manage.”
Chemical relaxers, with their highly alkaline pH, represented a stark departure from ancestral practices, often causing severe hair damage and scalp irritation.
The prevalence of relaxer use, particularly among women of Black African ancestry, was staggering. Research by the University of Cape Town’s Hair and Skin Research Laboratory revealed that Up to 70% of Women of Black African Ancestry Used Hair Relaxers, with all tested products, including those marketed for children, demonstrating pH levels corrosive to skin (Sishi, 2020). This widespread adoption was not simply a stylistic choice; it was deeply intertwined with societal pressures and racialized beauty standards that deemed natural textured hair unprofessional or unkempt. The act of chemically straightening hair became a ritual of conformity, a perceived necessity for social and economic mobility in systems that often discriminated against the natural state of Black hair.
The impact of these highly alkaline treatments extends beyond mere cosmetic concerns. Recent studies have brought to light potential health implications, linking chemical hair relaxer use to an increased risk of uterine fibroids and certain cancers in women of color (Byrd & Tharps, 2014; Ujima Natural Hair and the Black Community Black Paper_kmc.docx, 2023). This intersection of beauty practice, chemical science, and public health underscores the complex legacy of altering natural hair texture to fit dominant aesthetic norms. The journey back to natural hair, often termed the “natural hair movement,” represents a profound reclamation of heritage, a conscious choice to honor the hair’s innate structure and health, free from the damaging effects of harsh chemical treatments and their associated pH extremes.
- High Alkalinity ❉ Relaxers contain strong bases like sodium hydroxide or calcium hydroxide, raising pH significantly.
- Disulfide Bond Disruption ❉ The high pH breaks the structural bonds that define hair’s natural curl.
- Cuticle Damage ❉ Sustained high pH exposure lifts and compromises the hair’s protective outer layer.
- Scalp Irritation ❉ Corrosive pH levels frequently cause burns, inflammation, and potential hair loss.
The contemporary understanding of pH in hair care, therefore, becomes a lens through which to view a broader cultural narrative. It allows us to recognize the wisdom in ancestral practices that, though unscientific in their articulation, aligned with the hair’s natural biology. It also compels us to acknowledge the historical damage wrought by products that disregarded this delicate balance, driven by oppressive beauty ideals. The ongoing conversation about pH in hair care is not merely about scientific precision; it is a dialogue about self-acceptance, well-being, and the inherent beauty of textured hair in all its natural forms, a profound connection to an enduring heritage.

Reflection
To stand with textured hair is to stand with a living archive, each curl and coil a testament to an expansive heritage. The journey of understanding pH’s influence on our hair traditions is not a detached scientific inquiry; it is a soulful meditation on ancestry, survival, and the radiant spirit that persists through generations. From the intuitive wisdom of our forebears who understood the power of natural elements to the stark realities brought by chemical interventions, the story of pH and textured hair is a narrative woven with threads of deep cultural significance. It speaks to a legacy of adaptive genius, a constant seeking of harmony between the natural world and the vibrant strands that crown us.
The wisdom of “Soul of a Strand” echoes through these explorations. It reminds us that every act of care, every choice of ingredient, resonates with a history far older than any modern formulation. The knowledge we seek today, whether through precise pH measurements or the study of botanical compounds, often serves to reaffirm the efficacy of practices established long ago, born of necessity and passed down with love.
Our hair, in its myriad forms, carries the genetic echoes of those who came before us, and understanding its intrinsic needs, including its optimal pH environment, is a way of honoring that unbroken lineage. This appreciation extends to the deliberate choice to nurture our hair with gentleness, informed by both ancestral insight and contemporary science, creating a path towards enduring wellness and self-reverence.

References
- Byrd, A. D. & Tharps, L. L. (2014). Hair Story ❉ Untangling the Roots of Black Hair in America. St. Martin’s Griffin.
- Dube, M. Nkomo, H. D. & Khumalo, N. P. (2020). ‘Relaxers’ damage hair ❉ Evidence from amino acid analysis. South African Medical Journal, 110(3).
- Sishi, N. (2020, March 9). Hair relaxers tested by UCT lab found to be corrosive to skin. University of Cape Town News.
- Ujima Natural Hair and the Black Community Black Paper_kmc.docx. (2023).
- Vertex AI Search Grounding API Redirect. (2025, May 13). The Real Science Behind African Black Soap Shampoo for Hair Growth.
- Vertex AI Search Grounding API Redirect. (2015, September 15). The Problem with Black Soap for Natural Hair.