This highly effective serum is to be used in conjunction with the AO Activator/Forte/Superforte Minoxidil topical solution.

Retinol, when used in conjunction with minoxidil, it has been shown to increase the rate of hair growth, prolong the anagen phase of the hair cycle, and produce denser hair regrowth. It achieves this effect by increasing the percutaneous absorption of minoxidil, which in turn enhances the response of hair loss to minoxidil.

This solution is to be only used at night, as vitamin A is known to cause skin sensitivity to the sun.