Dog Penis and Testes Classic Formulas

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Warms Kidney Yang and supports sexual vitality - Gou Shen is a niche traditional animal tonic used for impotence, cold weakness of the lower burner, and depleted reproductive drive.
Supplements essence for infertility and deep deficiency - traditional trade literature extends its use to infertility, seminal weakness, and constitutional exhaustion rooted in Kidney-Yang decline.
Strengthens the low back and knees in deficiency-cold states - it is used when impotence or reproductive weakness is accompanied by soreness, coldness, or frailty below the waist.

Gou Shen with Gou Qi Zi, Ba Ji Tian, and Tu Si Zi - classic Kidney-Yang tonic pairing logic for impotence, cold limbs, and reproductive weakness.
Animal-yang tonic wine traditions with Lu Rong, Rou Cong Rong, and Yin Yang Huo - broader lower-burner warming strategies used when sexual debility reflects constitutional cold deficiency.

American Dragon lists (Huang) Gou Shen among herbs that tonify Kidney Yang and records a salty, hot profile entering the Kidney channel.
Traditional trade literature describes Gou Shen as a specialty tonic for impotence and cold-type reproductive weakness rather than as a general tonic for routine use.