Sato Pharmaceutical (Yunker)
Herbal Yunker — a leader in nourishing tonics.
A major pharma company known for Yunker energy tonics, strong in herbal (crude-drug) tonics.
Brand facts
- Founded
- 1915
- Headquarters
- Tokyo, Japan
- Parent / operator
- Sato Pharmaceutical Co., Ltd.
- Origin
- Japan
About Sato Pharmaceutical (Yunker)
A major pharma company famous for the Yunker series. It specializes in nourishing energy tonics that blend crude drugs (astragalus, ginseng, etc.), offered across a wide range of price tiers.
What sets Sato Pharmaceutical (Yunker) apart
Its strengths are herbal nourishing tonics, a wide price range and OTC-medicine efficacy.
Ingredient sourcing
Manages crude drugs, vitamins and amino acids to pharmaceutical standards.
Manufacturing & quality
Manufactured under pharmaceutical GMP.
Certifications & testing
- Pharmaceutical GMP
- Approved OTC-drug products
Signature products
- Yunker Kotei-eki
- Yunker Star
- Energy tonics
Focus categories
- Energy tonics
- Herbal / nourishing tonics
- OTC medicine
Price positioning
Mid-to-premium (top tonics are pricey) — value in efficacy and herbal content.
Where to buy in Japan
Available in drugstores, pharmacies, convenience stores, Amazon.co.jp and Rakuten Ichiba.
Best for
People who want an herbal nourishing tonic when tired.
Things to keep in mind
As an OTC medicine, follow the dosing and warnings; some contain caffeine.
Prices are sample data. Check the retailer's site for the current price.