What does it do and what scientific studies give evidence to support this?

Scientific studies show that flavones (primarily chrysin) may exert a wide CHRYSIN is an extract from a flower called Passiflora Caerulea. CHRYSIN is also referred to as Flavone Ex or Isoflavone. Most prohormones will increase your testosterone levels, but will also increase the estrogen levels. When this occurs, you end up with less testosterone in your system. Chrysin is an aromatase inhibitor, which means it has anti-estrogen effects.

This is a one-of a kind state of the art supplement that is     EXPLODING onto the scene. Chrysin 250 & 500 is a naturally occurring chemical extracted from a plant called Passiflora Coerulea. It is thought that Chrysin enhances testosterone production by minimizing the conversion or "aromatizing" of testosterone to estrogen. When the body detects increased estrogen it is theorized that it shuts down natural testosterone production. When supplementing with Chrysin your pituitary gland would not shut down interfering with your natural testosterone production. Several studies conducted on Chrysin have shown it to increase natural production and blood serum levels of testosterone by 30%. This is a potentially extremely powerful product since experts believe that if you can minimize the conversion of testosterone to estrogen. This means testosterone levels in the blood could increase without and excessive amount of estrogen being produced. Higher levels of estrogen have also been associated with unwanted side effects such as gynomastia. Chrysin can stop it in it's tracks. The body has a tendency to convert excess testosterone into estrogen which can cause side effects to body-builders on heavy testosterone supplementation. Such side effects include highly sensitive and enlarged nipples and skin rashes. CHRYSIN can block the body from converting testosterone into estrogen. Since almost all body builders and many athletes are interested in elevating their testosterone levels with supplementation, CHRYSIN is an ideal supplement to take in conjunction with other testosterone boosters in order to prevent feminizing side effects. Scientific studies in Europe show that CHRYSIN has the potential to increase testosterone concentrations in excess of 30% (and have the concentrations REMAIN as testosterone). European Olympic athletes report 1-3 grams of CHRYSIN daily is a safe and effective dosage with one half being ingested in the morning one hour before workout and the other half being taken at bedtime.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease

Who needs it and what are some symptoms of deficiency?
Today's bodybuilders and competitive athletes are always looking for ways to boost their natural testosterone levels. Of coarse there's DHEA, Tribulus terrestris, and androstenedione (to name a few), which supply raw materials for the production of testosterone. Now there's another way! Our bodies naturally convert some amounts of testosterone into estrogen (aromatization), a process which accelerates as testosterone levels go up. Chrysin works by minimizing this conversion! Chrysin is the "anti-aromatization" if you will. This is great news for those who want to enhance their muscle building ability! Furthermore, according to the July '98 Ironman magazine, "bodybuilders using testosterone boosters today worry a lot less about gynecomastia and hair loss if they're stacking chrysin." Because chrysin is not an essential nutrient, it is not associated with deficiency.

How much should be taken? Are there any side effects?
European Olympic athletes report 1-3 grams of chrysin per day is a safe and effective dose. Follow the directions and dosages on the bottles below for best results. For best results, it is recommended to take one half one hour before working out and the other half at bedtime. With proper supplementation, there have been no reported side effects.

60 Capsules - 250 mg