The conversation is about whether castor oil can be effectively used alone after microneedling without a penetration enhancer like DMSO or ethanol. The user believes microneedling-induced wounds might be enough for absorption.
Tretinoin can make minoxidil more effective for hair loss treatment, but some users did not see improved hair density with this combination and had better results with dutasteride.
Tazarotene shows potential as a standalone treatment for hair regrowth by stimulating new hair follicle formation and promoting angiogenesis, similar to microneedling effects. It can be used topically without minoxidil, but users should start with a low concentration to avoid irritation.
The user shared progress on hair regrowth using oral minoxidil and dutasteride over three months, expressing satisfaction with the results. The user emphasized the importance of starting treatment early upon noticing hair loss.
The user plans to use a combination of tretinoin, topical minoxidil, and topical finasteride for hair loss treatment. They seek advice on application order, timing, and tretinoin dosage.