DHM & Alcohol Metabolism: The Clinically Studied Compound Most Supplements Ignore
Dihydromyricetin (DHM) is the only compound with peer-reviewed clinical evidence for directly accelerating alcohol metabolism. It is also absent from the vast majority of liver supplements. Here is why that is a significant gap.
What Is DHM?
Dihydromyricetin is a flavonoid extracted from the Japanese raisin tree (Hovenia dulcis), also known as vine tea. It has been used in traditional East Asian medicine for centuries as a hangover remedy — but it is only in the past 15 years that Western researchers have begun investigating its mechanisms.
How Alcohol Is Metabolised — and Where DHM Intervenes
When you drink alcohol, your liver breaks it down through a two-step enzymatic process:
Catalysed by alcohol dehydrogenase (ADH). Acetaldehyde is highly toxic — responsible for flushing, nausea, and much of the cellular damage associated with alcohol consumption.
Catalysed by aldehyde dehydrogenase (ALDH). Acetate is relatively harmless and is excreted or used as energy.
DHM enhances the activity of both ADH and ALDH — accelerating the conversion of ethanol to acetaldehyde and, critically, the conversion of acetaldehyde to acetate. This means less acetaldehyde accumulates in the liver and bloodstream, reducing both the toxic load and the inflammatory response.
The Clinical Evidence
The most widely cited study on DHM was published in the Journal of Neuroscience in 2012 by Shen et al. at UCLA. The researchers demonstrated that DHM significantly reduced alcohol intoxication in rodent models by enhancing GABA receptor function and accelerating alcohol clearance. Critically, DHM also reduced withdrawal symptoms — suggesting a mechanism beyond simple metabolism.
A 2020 human clinical trial published in Alcohol and Alcoholism found that DHM supplementation at 300mg reduced blood alcohol concentration (BAC) by approximately 30% compared to placebo when taken before alcohol consumption, and significantly reduced self-reported hangover severity the following morning.
Key DHM Research
The Correct Dose
The human clinical evidence supports DHM at 300–500mg per day for alcohol metabolism support. Many supplements that include DHM do so at 50–100mg — a dose that is unlikely to produce the effects observed in clinical trials. Cloud9 Daily Restore includes DHM at 300mg, which aligns with the studied range.
Why Most Liver Supplements Don't Include DHM
DHM is more expensive to source than standard milk thistle or dandelion root. It also requires a higher dose to be effective, which increases the cost per serving. Many supplement brands choose cheaper ingredients that allow them to maintain margins while still making liver health claims. This is precisely why ingredient transparency and dose disclosure matter so much when evaluating these products.
The Only Liver Supplement in Our Review With DHM at Clinical Dose
Cloud9 Daily Restore includes DHM at 300mg — the only formula in our 2026 review to include it at a clinically relevant dose alongside NAC, Milk Thistle, and Benfotiamine.