13 citations
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September 2020 in “Sensors” Hair follicles have a pH gradient, increasing towards the root.
January 2008 in “Chinese Journal of Spectroscopy Laboratory” Cysteine formation on hair indicates damage, best detected at pH 4.5.
125 citations
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September 2001 in “The FASEB Journal” Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.
43 citations
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July 2016 in “European journal of pharmaceutical sciences” Scientists created tiny particles that release medicine on the skin and in hair, working better at certain pH levels and being safe for skin cells.
40 citations
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July 2013 in “Skin Pharmacology and Physiology” Male skin gets drier and more alkaline as it ages, which may need different skincare than women's skin.