Is it still necessary to use retinoic acid with Xandrox®?
A. Again, it’s not necessary, but it may be more effective. Topical minoxidil is dose related. Using retinoic acid allows for better penetration of the minoxidil. This was important when 2% minoxidil solutions were the only preparations available. With higher concentrations of minoxidil, the addition of retinoic acid to the mixture is less important.
