--- source_url: https://hangovr180.com/science/dhm/ampelopsis-grossedentata.md canonical_url: https://hangovr180.com/science/dhm/ampelopsis-grossedentata generated_at: 2026-06-28T19:53:17Z build_id: ebfcfef page_type: science-leaf claim_ids: [SF-21, SF-08, SF-01] --- # AMPELOPSIS GROSSEDENTATA: THE VINE SOURCE *Ampelopsis grossedentata is the Chinese vine tea plant whose leaves contain dihydromyricetin at concentrations up to 30 percent by weight, which is what makes it the dominant commercial source for modern DHM extracts.* 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. ## What Vine Tea Is Ampelopsis grossedentata is a climbing vine in the Vitaceae family, native to southern and southwestern China. The leaves and young shoots have been used as a herbal tea by ethnic minority groups in Hunan, Guizhou, and Yunnan provinces for several hundred years, where it is called teng cha (vine tea). The traditional use is broad -- digestive complaints, sore throat, fever, and as a daily beverage in the same way black or green tea is consumed elsewhere[1]. What makes vine tea pharmacologically interesting is the dihydromyricetin content. The leaves contain DHM at concentrations of roughly 30 percent by dry weight, with total flavonoid content reaching 40 percent or more[1]. That is an unusually high concentration of a single bioactive flavonoid for any plant -- most polyphenol-rich plants concentrate their flavonoid content in the low single digits as a percentage of dry weight. ## Why Vine Tea Beat Hovenia for Commercial Production > **Claim [SF-21]:** Acts by promoting aldehyde and alcohol metabolism of foods. † > > † 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. Hovenia dulcis is the more historically famous source for DHM in traditional Chinese medicine, listed in the Materia Medica back in 1578. But for modern commercial DHM production, Ampelopsis grossedentata is the dominant source, and the reason is yield. The vine tea source produces a higher and more consistent DHM yield than Hovenia dulcis does, in the agricultural production data at least[3]. A 2020 transcriptome study mapped the genes responsible for vine tea's high DHM production and found that the biosynthetic pathway in this plant is unusually efficient at converting flavonoid precursors into DHM specifically rather than into related compounds[3]. (this is the part of the supply chain that consumers almost never see, but the source plant matters more than the supplement label tends to admit.) ## What Vine Tea Does in Animal Studies > **Claim [SF-08]:** Help shield your cells from oxidative damage. † > > † 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. The antioxidant capacity of vine tea extracts is documented across animal studies and in vitro assays. The 2019 study of vine tea's antioxidant properties measured radical-scavenging activity, lipid peroxidation inhibition, and protective effects against oxidative damage in cell culture, and found that the activity tracks closely with DHM content rather than with other vine tea constituents[2]. Vine tea extracts also show the same alcohol-clearance and hepatoprotective effects that isolated DHM does[4], because DHM is what is doing most of the work in either case. > **Claim [SF-01]:** Helps you feel fresh. † > > † 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. ## What This Means for the H180 Formula The H180 formula uses isolated DHM derived from vine tea sources rather than from Hovenia dulcis or from synthetic production. The reason is the same as the commercial reason -- vine tea provides higher per-batch DHM yield and more predictable purity than the alternatives. Ampelopsis grossedentata is teh dominant commercial DHM source today even though Hovenia dulcis is the more famous traditional plant. ## What This Page Is Not Claiming We are not claiming vine tea drinking produces the same effects as a 1,500mg DHM supplement serving. The flavonoid concentration in brewed vine tea, even at high consumption volumes, is far below the threshold doses identified in the modern pharmacology literature. Vine tea is the source plant for the commercial DHM extracts H180 uses; it is not a delivery format for the formula's effective dose. For the related plant source, see [Hovenia Dulcis -- The Plant Source](/science/dhm/hovenia-dulcis). For DHM's chemistry, see [DHM as a Flavonoid](/science/dhm/dhm-flavonoid). ## Citations 1. [Recent Advances in Research on Vine Tea -- A Potential and Functional Herbal Tea with Dihydromyricetin and Myricetin as Major Bioactive Compounds](https://pmc.ncbi.nlm.nih.gov/articles/PMC8572699/). PMC8572699. 2. [Antioxidant Properties of a Traditional Vine Tea, Ampelopsis grossedentata](https://pmc.ncbi.nlm.nih.gov/articles/PMC6719964/). PMC6719964. 3. [Annotation of Genes Involved in High Level of Dihydromyricetin Production in Vine Tea (Ampelopsis grossedentata) by Transcriptome Analysis](https://pmc.ncbi.nlm.nih.gov/articles/PMC7106717/). PMC7106717. 4. [Dihydromyricetin As a Novel Anti-Alcohol Intoxication Medication](https://pmc.ncbi.nlm.nih.gov/articles/PMC3292407/). PMC3292407. ## Read Next - [Hovenia Dulcis -- The Plant Source](/science/dhm/hovenia-dulcis) - [DHM as a Flavonoid](/science/dhm/dhm-flavonoid) - [What Is DHM](/science/dhm/what-is-dhm) - [DHM -- The Hub](/science/dhm) **Written by Mark Scott** - Co-Formulator, Hangovr180® | Co-Inventor, [US Application 18/698,010](https://patents.google.com/patent/US20250073201A1) Mark Scott conducted approximately 150 personal formulation tests over six months to develop the H180 ingredient combination. [Editorial standards](/editorial-standards) --- 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. Hangovr180® is a dietary supplement. Individual results may vary. Consult your healthcare provider before use if you have any medical conditions or take medications. [US Application 18/698,010](https://patents.google.com/patent/US20250073201A1). Canonical: https://hangovr180.com/science/dhm/ampelopsis-grossedentata