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Buy Our Levo-Tetrahydropalmatine (L-THP, Corydalis Yanhusuo (Yan Hu Suo) Extract)


L-THP (also known as Corydalis Extract or Yan Hu Suo) is a potent berberine-type heterocyclic alkaloid. It is known for its relaxing and calming benefits. It has a molecular mass of 355.428 g/mol and the chemical formula C21H25NO4.


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L-THP (Cordyalis Extract) Reviews


Corydalis Extract Benefits and Uses


Corydalis yanhusuo (Yan Hu Suo) is a traditional Chinese herbal medicine that has been used in traditional Chinese herbal medicine for hundreds of years and contains the potent berberine-type compound, Levo-Tetrahydropalmatine (L-THP).


While it has been used in several studies with human participants, more research is required to fully understand the significance of this compounds benefits and side effects. Large servings may be dangerous to your health.


Where to Buy L-Tetrahydropalmatine Online?


LiftMode offers a variety of unit sizes of L-THP including a 2 gram sample and a 10 grams (0.35 Oz) unit, at an excellent guaranteed purity of 98+% Levo-Tetrahydropalmatine.


All our products ship with a certificate of analysis from 3rd-party independent laboratories, and all orders are covered by our 90-days refund/reshipment policy to ensure the highest quality.


Shipping restrictions: No shipping restrictions currently apply to this product and we are able to ship internationally. At checkout, the available shipping options for your location will be available.




L-THP supplements are also known by a few different names, including:




Yan Hu Suo

Corydalis extract





Cordyalis extract


Scientific Consensus:


Supplementing with this probably safe at the recommended serving size, but large servings can be dangerous to your health. There is a need for further research into the health effects of long-term supplementation and the use of larger servings. L-THP has the potential to interact with some medications, and caution should be used.

DO NOT EXCEED THE RECOMMENDED SERVING SIZE. Use with caution. Do not use if pregnant or breastfeeding.


Special Warning:


Never exceed 120 mg in a single serving.  Exceeding the suggested serving size can cause overdose symptoms which can, in rare cases, lead to coma and death.


Do not take L-Tetrahydropalmatine supplements in herbal formulas, unless from a reputable source. If you have any medical conditions, speak to your doctor before using L-THP. Do not use L-THP if you are pregnant or breastfeeding.




All dietary supplements have risks. Please ensure that you are familiar with the latest research on effects, side effects, benefits, and uses of a supplement before buying it.


Store in a cool, dry place. Keep out of reach of children. Do not exceed the recommended serving size. Exceeding the recommended serving size may result in side effects. If you have any underlying medical conditions or are taking any medication, please consult a medical professional before using this supplement. 


These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Buy Corydalis extract L-Tetrahydropalmatine


How We Research Our Content

Our content is written using meticulous research methods and claims are backed by links to scientific references, wherever possible. The author and editors of Liftmode's Research Team have strong academic backgrounds in microbiology, physiology, and biochemistry.

Content Updated On: October 4, 2019



  • Horowitz, R.S., et al. The clinical spectrum of Jin Bu Huan toxicity. Arch Intern Med. 1996 Apr 22;156(8):899-903.

  • Kelly, D., et al., Treatment of… With L-tetrahydropalmatine (l-THP): a Novel Dopamine Antagonist With Anti-inflammatory and Antiprotozoal Activity. Clinical Trials Indicator NCT02118610. The University of Maryland, Stanley Medical Research Institute, 2014-2017.

  • Oh, Y.C., et al., Tetrahydropalmatine inhibits pro-inflammatory mediators in lipopolysaccharide-stimulated THP-1 cells. J Med Food. 2010 Oct;13(5):1125-32. doi: 10.1089/jmf.2009.1388. 

  • Tetrahydropalmatine. (2019). PubChem, Compound Summary for CID 72301, Open Chemistry Database, US National Library of Medicine, available online at