Sinetrol Complex Extract: Citrus Polyphenols for Fat Reduction

Sinetrol is a composite extract derived from grapefruit, orange, and guarana, employed as a functional ingredient aimed at reducing body fat. The principal active constituents are naringin, sourced from grapefruit, and hesperidin, sourced from orange; caffeine from guarana may also be present. In the context of health‑functional food ingredients, Sinetrol is presented as a “grapefruit extract complex” rather than a single grapefruit component or juice. Naringin and hesperidin are representative citrus polyphenols linked to regulation of lipid metabolism and antioxidant activity. The formulation incorporates multiple plant‑derived raw materials to achieve its intended effect.