Crystal Penis Boost effects the penis in multiple ways. If you\'re stressed, busy or tired, you may not be able to have a fast erection or enjoy sex. Through carefully composed ingredients like zinc and oyster extract, Crystal Penis Boost enables better circulation of the penis and a firmer erection. Suggested use: Take 1 tablet twice a day with plenty of water. Do not take the tablets on a full stomach. We recommend taking these pills for at least 3 consecutive months. Results may vary for each individual. Don\'t use this if you have heart issues. When in doubt, contact your doctor first. Ingredients: Calcium Oyster Shell Carbonate, L-Arginine, Muira Puama, Fenusterols™ Fenugreek >50% steroidal saponins, Ashwaganda Withania Somnifera >7% withanolides 0,25% Withaferi, Zinc Monomethionine18-22% Zn, MCC, Dicalcium phosphate, Cotton Seed Oil, Silicon dioxide, Magnesium stearate (vegetable).