Effects of UV-Induced Photoaging on the Hair Follicle Cycle of C57BL6/J Mice

Male-pattern baldness might increase UVB exposure on the scalp, potentially affecting vitamin D and skeletal health. The hypothesis is debated, with some seeing it as a minor benefit in specific contexts.

A user, 42 M, NW 5-6, used oral Dutasteride, Minoxidil, RU58841 topical, micro needling, Nizoral shampoo, saw palmetto gummies, vitamin D gummies, and scalp massages for 2 months. They noticed many small light hairs on previously bald areas and are questioning if these will darken or remain vellus hairs.

The conversation discusses whether sunlight exposure affects hair growth or loss, with mixed anecdotes and theories but no clear consensus. Some suggest moderate sunlight can benefit hair by providing vitamin D, while others doubt its effectiveness compared to treatments like Minoxidil or finasteride.

A 16-year-old experiencing hair thinning noticed a shift from shedding long hairs to shorter hairs, while using Vitamin D, biotin supplements, ketoconazole shampoo, and improving diet. They are questioning if the short hairs indicate regrowth or androgenetic alopecia (AGA).

The conversation discusses hair regrowth progress using Minoxidil, finasteride, and RU58841. It highlights the transformation of vellus hairs into terminal hairs in a Norwood 6 frontal area.

Hair thickness below 50% may not recover fully, but treatments like finasteride and minoxidil can help. Shedding involves a resting phase before new hair grows, taking about three months.