Regaine extra strength has been specifically designed for men who want fast results when compared to regaine regular strength and is more suitable for those looking for regrowth regaine extra strength works for 4 out of 5 men to help prevent further hair loss it has been shown to re grow some hair in 3 out of 5 men results may become noticeable in just eight weeks in clinical trials men experienced 20 more regrowth than those using regular strength regaine extra strength is avail