29 citations
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July 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” The enzymes Aldh1a2 and Aldh1a3 are involved in making retinoic acid in hair follicles and have different roles in hair growth.
3 citations
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August 2021 in “Nutrition research” Estrogen affects how vitamin A is processed in mouse skin, which may impact acne treatment, hair growth, and skin defense.
May 2020 in “Current developments in nutrition” Vitamin A affects the resting phase of hair growth, with both low and high levels increasing the number of hair follicles in this phase.
June 2015 in “OhioLink ETD Center (Ohio Library and Information Network)” UVB exposure affects retinoid metabolism, which is important for skin cancer progression and treatment.
Retinoids or their analogs could treat skin pigmentation disorders like melasma and vitiligo.