Regaine for Men Extra Strength Scalp Solution contains 5% Minoxidil, clinically proven to help stop and reverse hereditary hair loss in men. This topical solution works by increasing blood flow to hair follicles, helping to revitalize and strengthen existing hair while promoting new growth. The solution should be applied twice daily to a dry scalp for optimal results. Clinical studies show visible results can appear as early as 8 weeks with consistent use. Suitable for men aged 18-49 experiencing hereditary hair loss. Not recommended for sudden or patchy hair loss, or for use by women. Contains Minoxidil 5% as the active ingredient.