Zuo Gui Wan
Restore the Left (Kidney) Pill
Evidence grade 2 of 5, Thin. Read how the Atlas grades evidence.
The written rationale for this grade is still being prepared.
- FDA
- Not FDA approved; sold as a dietary supplement / patent medicine
Reference only. Not medical advice.
What can go wrong
Rich and cloying; can burden digestion and is inappropriate in damp/spleen-deficient or exterior-cold patterns. Contains animal-derived gelatins (deer antler, tortoise plastron), raising sustainability, CITES and adulteration concerns for tortoise-derived material. As with most imported patent medicines, heavy-metal contamination and undisclosed ingredients have been reported in the category and are not systematically controlled.
This is something to take to a clinician. The Atlas can tell you what is known about zuo gui wan in general. It cannot tell you what is happening in your body, and the difference matters most for exactly the symptoms that bring people to this page.
Zuo Gui Wan (Restore the Left Pill) is the yin/essence counterpart to You Gui Wan, also from Zhang Jingyue's Jing Yue Quan Shu (1624). It removes the 'draining' herbs of the Liu Wei Di Huang base and adds pure essence-tonifying substances such as deer antler gelatin (lu jiao jiao), tortoise plastron gelatin (gui ban jiao), cuscuta, lycium and cyathula, aiming to nourish Kidney-Yin and jing without draining. It is traditionally used for Kidney-Yin/essence depletion presenting as nocturnal emission, low-grade heat, tinnitus, dizziness, sore back and, in men's-health framing, seminal weakness. Human sexual-endpoint evidence is essentially absent.
The yin-and-essence counterpart to You Gui Wan.
What people take it for
These are the reasons people give for taking it. They are not effects it has been shown to have.
How it is supposed to work
Framed in TCM as pure yin/jing tonification using animal-derived 'flesh-and-blood' substances (deer and tortoise gelatins) plus botanical yin tonics, without the draining herbs, so essence is replenished and secured. No validated pharmacological mechanism for male sexual endpoints has been established in humans.
What people get wrong
Often saidA safe herbal tonic for sexual weakness
ActuallyIts sexual-health use is traditional pattern-based, not trial-supported, and tortoise-plastron sourcing raises real ethical and adulteration issues.
Who profits, and who pushes back
Nobody is named here yet, because we have not done that work on this entry. Read that as unfinished. Somebody almost certainly sells this, and somebody almost certainly disputes it. Assume both until we have checked.
How we got here
Paired with You Gui Wan as Zhang Jingyue's yin-side reformulation of the classical kidney formulas, encoding the 'left kidney = yin/water, right kidney = yang/fire' framework. It became a standard yin-nourishing patent formula.
- 1624Published by Zhang Jingyue
- ModernStandardized as patent teapills, often with tortoise-plastron substitutes
Legal status
Teapills and granules via TCM dispensaries and online herb retailers.
Status current as of July 2026. Regulatory positions change, sometimes quickly.
At a glance
- Author
- Zhang Jingyue
- Text
- Jing Yue Quan Shu, 1624
- Focus
- Kidney-Yin & essence (jing)
- No aconite
- Warming yang herbs omitted
What this entry does not yet cover
What follows is unfinished work on our side, not a finding about Zuo Gui Wan. A short entry is not a safe entry.
- Cost and market. We have not documented what it sells for or who sells it.
- Supply chain. We have not mapped where it is made.
- Who uses it. We have not documented the user groups.
- What could change. No forward-looking summary yet.
- How it compares. We have not set it against the alternatives.
- Children and teenagers. We have not checked what is known about younger people.
- Where we land. We have not taken a position on this yet.
Sources
No sources recorded for this entry yet. Nothing on this page can be checked against a citation until that changes, so treat it as a summary awaiting its evidence.