The traditional medicine of Ly Cuu family was prepared in capsule "KS" (Herba epimedii, Allium tuberosum, Polyscias fruticosa and Ginkgo biloba) and has been used to treat weakness, fatigue, astigmatism, back pain, urination many times... Objectives: Evaluate of lethal dose 50 and androgenic-like effect of "KS" capsule combined with testocaps to help limiting menopause, reducing aging, and maintaining quality of life on men.