A healthy hair shaft and scalp typically maintain a pH between 4.5 and 5.5. This slightly acidic environment is crucial for the integrity of the cuticle layer, which functions like scales, lying flat to protect the inner cortex. Disruption to this balance causes the cuticle to lift, leading to vulnerability.
Many common haircare practices, from harsh cleansers to colouring agents, push the hair’s pH into an alkaline state. This shift is often imperceptible, but over time, it compromises hair’s natural defenses and appearance.
The pH scale, ranging from 0 to 14, measures acidity or alkalinity. A neutral pH is 7; anything below is acidic, anything above alkaline. Understanding this metric is foundational to effective hair treatment.
Hair’s primary protein, keratin, is particularly sensitive to pH fluctuations. An alkaline environment causes keratin proteins to swell, opening the cuticle and making hair prone to tangling, breakage and moisture loss.
Most conventional shampoos often contain surfactants that, while effective, can be highly alkaline, stripping hair of its natural oils and disturbing its optimal pH. Evera formulations, by contrast, are meticulously balanced to remain within the hair’s natural pH range of 4.5-5.5.
This careful pH calibration ensures beneficial ingredients—like hydrating polysaccharides from Sicilian aloe or nourishing glycerides from cold-pressed olive oil—can function optimally. Their efficacy is intrinsically linked to the environment.
Consider a lamellar structure, where layers of ingredients deposit evenly. If the pH is incorrect, these delicate layers cannot form or adhere properly, diminishing the intended conditioning effect.
Focusing solely on a product’s ingredient list, without considering its pH, is akin to selecting a precise architectural material without understanding the climate it must withstand. The finest components perform poorly if their conditions are not met.
While the INCI list provides transparency on what is present, it does not convey the full story of how a formula interacts with hair. pH is a critical, often unlisted, factor determining a product’s real-world performance.
Ultimately, a product’s pH is not merely a technical detail; it is a fundamental determinant of hair health and ingredient effectiveness.
