High Potency 60% Steroidal Saponins Herbal Supplement Bottle is BPA-Free Increases Libido Improves Sexual Performance Savesta Tribulus is the most pure and potent Tribulus extract available. Active constituents known as saponins are thought responsible for it benefits. Typical Tribulus products only contain 40% saponins. For maximum effectiveness, this full spectrum extract is concentrate to 60% and includes protodioscin. Savesta Tribulus is produced using sustainably wildcrafted plants. It should not be taken by those who need to avoid testosterone increasing substances. In Ayurveda, Tribulus is considered a Rasayana - promoting rejuvenation, mental and physical health, as well as a defense against aging.