Tentex Royal is not known to have any side effects if taken as per the prescribed dosage. Ingredient: Gokshura herb is known to improve energy and stamina. Ingredients: - Asteracantha Longifolia (145 mg), Prunus Amygdalus (126 mg), Blepharis edulis (115 mg), Crocus sativus (14 mg), Tribulus terrestris (100 mg).
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