Mach 1 Giga effects the penis in multiple ways. Stress pressure or fatigue can sometimes make it harder to get an erection or enjoy sex. With carefully formulated ingredients such as LArginine and Muira Puama extract Mach 1 Giga can improve blood flow to the penis and increase libido. Directions: take 1 tablet in the morning and evening with plenty of water. Take the tablets on a not too full stomach. Do not exceed the dose. Results may vary for each individual.Not to be used by pregnant women people with heart disease or stomach ulcers. When in doubt always consult a doctor. Ingredients per 2 tablets: LArginine (200 mg) Tribulus Terrestris Extract (75 mg) Muira Puama Extract 4:1 (50 mg) Fenusterols Fenegriek (40 mg) Hydrogenated Vegetarian Oil (40 mg) Zinc Citrate (38.7 mg 120% RI*). Excipients: E170 E460 E551 E572. *RI Reference Intake.