3 citations
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June 2019 in “Journal of cosmetic dermatology” In this study, tresses treated with pH 1.0 acid straightener showed better straightening but more damage to hair properties compared to those treated with pH 2.0.
April 2019 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)” This study found that the acidic hair straightening formulation at pH 1.0 improved hair alignments and straightening effectiveness more than pH 2.0, but it weakened fiber strength and affected hair color and composition.
6 citations
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June 1976 in “Journal of ultrastructure research” This study identified the presence of recognizable organelles, such as lysosomes and mitochondria, in both the keratinized fiber and the hardened inner root sheath of the Romney wool follicle.
3 citations
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December 1975 in “PubMed” This study found that acid and alkaline phosphatases serve different functions in Beagle dog skin, with ALP primarily involved in growth processes and ACP in phospholipid breakdown.
July 2026 in “Journal of Homeopathy Studies” This study observed greater clinical improvement in patients with alopecia areata who received individualized homoeopathic constitutional treatment compared to those who received Acid Phos, but further research with objective measures is needed to confirm these findings.