Minoxidil 5% Topical Solution. Extra Strenth for Men. EXP 12/2019 or better. Compare Kirkland Signature to the Active Ingredient in Rogaine Extra Strength for Men. Kirkland Signature Minoxidil Extra Strength Hair Regrowth Treatment is for men who have a general thinning of hair on top of the scalp. Not intended for frontal baldness or a […]