I literally can’t find any evidence of sulfotransferase being upregulated by microneedling or retinoids like tretinoin Research/Science 8/18/2025
Microneedling and tretinoin may enhance minoxidil absorption for hair loss, but evidence on their effectiveness is limited. Iron supplements and broccoli sprouts are suggested for enzyme activation, but their impact on hair is unclear.
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5 / 250 resultscommunity Who won’t respond to minoxidil? (Studies)
Minoxidil's effectiveness varies due to differences in sulfotransferase enzyme levels in the scalp, affecting people with conditions like ASD, liver disease, and androgenic alopecia. Treatments like topical tretinoin, microneedling, and using minoxidil sulfate instead of regular minoxidil can improve results for those with low enzyme levels.
community Minoxidil works only with Retinoic acid
Minoxidil is more effective when combined with retinoic acid, such as tretinoin or tazarotene, enhancing hair growth. Some users experience significant regrowth, while others see minimal effects or side effects.
community Why do I see so many people here recommend microneedling?
The efficacy of microneedling for hair regrowth as either a stand-alone therapy or adjunct to Minoxidil, and whether Tretinoin is a safer and more effective option. Replies include personal accounts from users who have had success with microneedling in combination with minoxidil and peptide serums, as well as considerations of technique, depth, and potential scarring.
community Minoxidil seems to not work anymore this sucks
A user reported that Minoxidil, a hair growth treatment, stopped working for them despite initial success. Other users suggested not taking breaks from the treatment, checking for fake products, trying microneedling, using oral Minoxidil, combining Minoxidil with tretinoin, and using finasteride.
community Hairline Progress 24M - 4 month report. 5% min 1x/day, 1mg Fin every other day, 0.5mm microneedle 1x/week. Biotin and multivitamins too. Pretty stoked with the results!
A 24-year-old man shared his 4-month hair regrowth progress using 5% Minoxidil once daily, 1mg Finasteride every other day, weekly 0.5mm microneedling, Biotin, and multivitamins. Commenters suggest adding Tretinoin could enhance results, while others express happiness for his improvement.
Related Research
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research Sulfotransferase SULT1A1 activity in hair follicle, a prognostic marker of response to the minoxidil treatment in patients with androgenetic alopecia: a review
Sulfotransferase SULT1A1 activity may predict minoxidil treatment success for hair loss.
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Minoxidil and finasteride are the best for non-scarring hair loss; more research is needed for scarring hair loss treatments.
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Retinoids may improve hair growth in androgenic alopecia when used with other treatments.
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The most effective treatments for hair loss are minoxidil, finasteride, PRP, and hair transplants, with steroids and immunosuppressants for autoimmune types.
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Experts created guidelines for treating hair loss in Egypt, focusing on personalized care.
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Combining herbal medicines with modern delivery systems may improve alopecia treatment.