Kirkland minoxidil foam penetrates the scalp to reactivate shrunken hair follicles, allowing for regrowth of hair. The extra strength 5% Minoxidil formula works to boost hair follicle activity and hair protein production, helping to maintain hair density. This hair thinning treatment for men comes in a topical solution that is easy to use: simply apply 1 milliliter directly to your scalp twice daily and massage it through your hair. Like all Rogaine hair loss products, it is designed to fit easily into your daily hair care routine.