Thoughts on topical cetirizine for AGA?

Treatment 3/16/2026

The conversation discusses using a multimodal approach to treat androgenic alopecia, including substances like gamma-linolenic acid, DHA, sulforaphane, melatonin, cetirizine, astaxanthin, fisetin, apigenin, curcumin, limonene, genistein, and berberine. Users also mention using ketoconazole, minoxidil, and low-level laser therapy (LLLT) as part of their hair loss treatment regimens.

The conversation discusses the potential of topical cetirizine (Zyrtec) for hair growth in comparison to minoxidil, noting cetirizine's ability to reduce prostaglandin D2, which inhibits hair growth. Users share mixed experiences with cetirizine for allergies and scalp health, and there's a mention of the risk of dementia with long-term antihistamine use.

Melatonin is being considered as a potential treatment for androgenic alopecia, with some users discussing its effects and combining it with other treatments like minoxidil and finasteride. Concerns about melatonin's impact on hormones and side effects from other treatments like ketoconazole were also discussed.

Exosomes, cetirizine, melatonin, latanoprost, and caffeine are discussed as potential hair loss treatments. There is skepticism about the effectiveness of exosomes, especially in topical form, but some users report positive results.

The potential effectiveness of homemade topical spironolactone in treating hair loss, with studies suggesting it is more effective than finasteride and even minoxidil when used as monotherapy. The conversation also mentions that other anti-androgens are being developed which may soon hit the market.

A 25-year-old woman with androgenic alopecia has been using minoxidil, spironolactone, and dutasteride but sees little improvement in hair thinning. She is considering switching to oral minoxidil and exploring other treatments like PRP and hair systems.