In a study published in the US National Library of Medicine National Institutes of Health, pH levels in shampoos and how it can affect hair growth and breakage was investigated.
The study noted: “Dermatologists most frequently prescribe shampoos for the treatment of hair shed and scalp disorders.
“Prescription of hair care products is often focused on improving scalp hair density, whereas the over-the-counter products focus on hair damage prevention.
“Alkaline pH may increase the negative electrical charge of the hair fibre surface and, therefore, increase friction between the fibres and this may lead to cuticle damage and fibre breakage.”
As ACV has a high acidity, it could help maintain the pH balance, thus making hair smoother, stronger, and increasing hair growth.