Decaffeinated
DECAF
Our signature roast, without the caffeine.
Fine for the afternoon and evening.
View in the Korean storeTHE ZONE BIO
LOCK IN COFFEE
Cold brew coffee concentrate blended with lion's mane and cordyceps extract, red ginseng extract and L-theanine. Mix 30–40 ml with water or milk. You will barely taste the mushrooms.
500 ml · about 14 cups per bottle
Three roasts, one blend
Every bottle has the same mushroom, red ginseng and L-theanine blend. The coffee is what changes.
Caffeinated
HOUSE
The house blend. A balanced, everyday cup.
Best in the morning or early afternoon.
View in the Korean store
Caffeinated
VIBRANT
The bright one, with more acidity.
Best in the morning or early afternoon.
View in the Korean storeWhat's on the label
Coffee extract is about three quarters of the bottle. LOCK IN COFFEE is a food, not a medicine, and is not intended to prevent or treat any disease.
| Coffee extract | 74.1% |
| Mushroom extract blend (lion's mane, cordyceps; grown in Korea) | 16% |
| Red ginseng extract (Korea) | 9.33% |
| L-theanine | 0.56% |
How to drink it
It is a concentrate, so dilute it and adjust to taste. Store unopened bottles out of direct sunlight. Once opened, refrigerate, shake before pouring and finish it soon.
- Iced
- 30–40 ml + 200 ml cold or iced water
- Latte
- 30–40 ml + 200 ml milk or oat milk
- Hot
- 30–40 ml + 200 ml hot water, around 90°C, not boiling
The company
THE ZONE BIO is a founder-led beverage company started by Minsung Park. LOCK IN COFFEE is what we make. We develop it ourselves and sell it through our own store.
Excellence Award, pre-startup track, 2025 Chung Ju-yung Startup Competition (Asan Nanum Foundation, October 2025). Coverage (Korean)
Ordering
Orders on thezonebio.kr and the Naver Smart Store currently ship within Korea only. For wholesale, partnerships or anything else, email me@thezonebio.com.