The short answer
Gush is whole Korean pear juice, packaged into a single-serve pouch and designed to be sipped before you drink alcohol — not after. It's built around a specific pear, Pyrus pyrifolia cv. Shingo, that's been used in Korea for generations around drinking occasions, and around a small but real body of peer-reviewed research showing it can reduce hangover severity and support how your body processes alcohol.
That's it. No proprietary blend, no synthetic isolate — real pear juice, backed by real research, meant to be part of your night before it starts, not a cure the morning after.
The pear
Pyrus pyrifolia, commonly called Korean pear, Asian pear, or nashi pear, is crisper and juicier than a typical Western pear — closer to an apple in texture. Long before it was a research subject, it was a household staple in Korea, often eaten or juiced around meals that included alcohol.
The research
Two real, peer-reviewed studies anchor what Gush is built on:
- A 2013 human trial in Food and Chemical Toxicology found Korean pear juice reduced hangover severity by 16–21% and lowered both blood alcohol and blood acetaldehyde levels. Read the full breakdown in the study behind the pear.
- A 2012 mechanism study in Phytotherapy Research found Korean pear stimulates the two enzymes — ADH and ALDH — responsible for clearing alcohol and its toxic byproducts. More in ADH and ALDH, explained.
Why juice, not a capsule
Most hangover products isolate a single compound into a pill. Gush uses the whole fruit instead — which means it does the same enzyme-support work as a beverage, plus the hydration, electrolytes, and antioxidants only a real drink can offer. More on why that's a deliberate choice in whole fruit vs. the pill.
How to actually use it
One pouch, about 20 minutes before your first drink. Not the next morning — the research this is built on tested pear juice as a before-drinking ritual, not a hangover-day rescue.
Shop Gush or keep exploring the science in The Gush Lab.