Detailed Product Description SHARK EXTRACTEfficacy:1.member littleness, genital organ hypoplasia,membrum atrophy,prospermia and hyposexuality induced by constitutional weakness and renal deficiency of the middle age and senility.2. Persons discontented with his membrum, and the persons whose membrum need to grow.3. persons who pursue quality of life, exhibit the full of himself and prolong the ...