The Effect of Vitamin A on Alopecia Areata: A Case–Control Study

Onion juice, when applied topically, is an effective treatment for Alopecia Areata, showing significant hair regrowth in both males and females. The study suggests it could be interesting to test its effectiveness on Androgenic Alopecia.

Betacarotene's effect on hair loss is discussed, with concerns about excessive vitamin A. The user also questions if 15mg melatonin impacts vitamin A levels.

Topical Vitamin D3 may stimulate hair growth and has been used for Alopecia Areata. There is a question about the lack of research on its use for Androgenetic Alopecia (AGA).

Vitamin D deficiency can hinder hair recovery, and addressing it may help with hair loss. Hair loss may result from various issues like excess DHT, vitamin deficiency, or scalp inflammation.

A 19-year-old female with Diffuse Alopecia was advised by a dermatologist to use vitamin supplements, a hair serum, and antifungal drops, leading to some improvement. Other users suggested treatments like minoxidil, microneedling, and consulting a different dermatologist for further advice.

The user is experiencing hair thinning and has a vitamin D deficiency, which they suspect might be causing the issue, but they are also considering androgenic alopecia (AGA) as a cause. They are currently using minoxidil and are unable to get finasteride prescribed, while others suggest addressing the vitamin D deficiency and consulting a dermatologist.