Pine Pollen and Nettle Root are a match made in heaven. While Pine Pollen can help supplement the body with phytoandrogens, Nettle Root promotes favorable testosterone to estrogen ratios and may help elevate levels of free active testosterone by decreasing the activity of sex hormone binding globulin (SHBG).To promote Qi circulation and to invigorate the endocrine system, we add just a touch of Citrus Peel and Gardenia fruit to the formula. This harmonizes and potentiates the formula. This is an ideal formula for men looking for the best of both worlds. The Pine Pollen is used for its phytoandrogens, as Nettle Root controls male hormones, and synergistically, they enhance each other’s effects. This combination has already started to increase my energy levels further into the day. I'm also feeling more interested in sex at a deeper level. Martin Great product. Actually noticed an increase in endurance, energy & vitality, within the first 2 to 3 days of taking the product.