Youngain is also know as Zhuang Yang is specifically designed for male erectile dysfunction (impotence or ED), premature ejaculation and male infertility. This multi-herb Yang promoting formula contains horny goat weed, psoralea fruit and curculigo and synergistic herbs that support the kidneys. YounGain is indicated when male sexual dysfunction is caused by Kidney Yang deficiencies with may be accompanied by lower back pain, cold/sore loins, knees or limbs, a pale complexion, lack of energy, and loose stools.

In the principles of Yin & Yang, Yang is hot and masculine and Yin is cool and feminine. While both sexes have both, men are more Yang dominant but as they age may become YIn dominant. Male sexual dysfunction and loss of libido largely pertain to Qi (vital energy) Yang Deficiencies. Youngain is similar to YanVive which nourishes Kidney Yang but it is far stronger and it not recommended for patients whose symptoms include a dry mouth, thirst, sweat, or dry stool.

You Gui Wan is a 400 year old formula commonly used to treat impotence and male infertility which is viewed as a deficiency of Kidney Yang. Yang is the male (positive) principle of Yin-Yang, while Yin is the womanish (negative) principle. Since the Kidneys are at the core foundation of all organs with respect to Yin, Yang and Qi — You Gui Wan helps to replenish vital Kidney Yang essence and enrich the blood to relieve impotence among other health conditions. You Gui Wan is indicated for people whose symptoms include cold legs.

The therapeutic actions of You Gui Wan remain unclear, similar to many botancial compounds and synthetic drugs. Chinese research suggests that it may increase male testosterone production and cytokines such as gamma-interferon which is believed to support healthy immune function. One study suggested it increases low sperm counts and in 45%-83% patients fertility was returned after taking You Gui Wan for 2-4 months. In another study You Gui Wan was reported to be effective in improving Osterporosis symptoms in 96.2% patients after 6-8 months of use.

You Gui Wan is similar to YounGain, and YanVive because they all nourish Kidney Yang but vary in strength. YounGain is strongest, followed by You Gui Wan with YanVive being mildest. Zuo Gui Wan another Rhemannia formula nourishes Kidney Yin and is appropriate when symptoms include low-grade fever or sweating,

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