Tretinoin may help more minoxidil convert to its active form and could potentially increase its absorption, raising concerns about safety if too much enters the bloodstream. It's unclear if tretinoin affects finasteride 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.
Using Tretinoin with Minoxidil may increase Minoxidil's absorption and improve hair growth results. The user is seeking advice on how to apply both treatments effectively.
Tretinoin's effectiveness for hair regrowth alone is questioned, with interest in its use with oral minoxidil. The discussion also considers whether finasteride or dutasteride is the better DHT blocker and if switching to dutasteride is advisable for those without side effects from finasteride.
Tretinoin may enhance minoxidil's effectiveness for those not responding to minoxidil alone, but it could reduce efficacy for some who are already responding to minoxidil. Tretinoin requires careful use, including skin moisturizing and sun protection due to increased sensitivity.