01 Action principal, Source ExplanationZhenyang Zhanjin Formula: Achieving Substantial Growth of the Tendons (Zongjin)

01 Action principal, Source ExplanationZhenyang Zhanjin Formula: Achieving Substantial Growth of the Tendons (Zongjin)

Zhenyang Zhanjin Formula: Achieving Substantial Growth of the Tendons (Zongjin)

  • Not a sexual enhancement supplement
  • Not a tonic
  • Not a form of secondary development
  • Not a temporary enlargement caused by improved blood flow (which is reversible). Instead, it results in substantial growth that remains evident even in a flaccid state (and does not reverse).

For more detailed information, please refer to:


The primary and sole effect of the 真阳展筋 Formula is enlargement.

  • (The accompanying warming and constricting effects may, with low probability, improve issues related to hardness and duration. However, this is not its primary focus. For targeted solutions regarding hardness and duration, please refer to 火龙丹 and 济火延嗣丹 .)

The enlargement achieved by 真阳展筋 Formula is overall and holistic. For more details, see FAQ 2 in Common Questions About the Effects of Zhenyang Zhanjin Formula.

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