Formestane is an advanced estrogen control agent. It can be used as part of on cycle or post cycle therapy (PCT) estrogen control regimens. Formestane’s topical absorption matrix is designed to improve bioavailability for maximum results.

Formestane, also called 4-hydroxyandrostenedione, is known as a ‘suicide inhibitor’ of the aromatase enzyme. It reduces excess estrogen in the body by blocking the production of it from the androgenic precursors.

Formestane is thought to have an estimated half life of 12 hours, so dosage is generally divided into twice daily dosing.