At a glance
- Japanese name
- 大塚製薬株式会社
- Established
- 1921
- Location
- Chiyoda (HQ), Tokyo
- Factory locations
- Naruto, Tokushima (major factory)
- English support
- Available
- Export experience
- Global
- Certifications
- GMP
- Website
- www.otsuka.co.jp/en
Editor's scoring
Overall 17/25 (68%)
- English supportStrong
- Export experienceAdequate
- Certification breadthLimited
- MOQ flexibilityStrong
- Lead timeStrong
Editorial scores are derived from public evidence and our editorial assessment. Not a paid placement. Read the scoring methodology →
About
Global pharmaceutical company. Discovered the world's first food-grade Equol-producing lactic acid bacterium 'Lactococcus 20-92' after 18+ years of research and screening 1,300+ strains. Launched 'Equelle' (EQUELLE) in 2014 as the world's first commercial fermented-soy Equol supplement. 'Yuragi-ki®' (ゆらぎ期®) is Otsuka's registered trademark for menopause-era marketing. Product line: Equelle tablets (10mg Equol/4-tablet daily), Equelle Petit (compact 2-tablet daily), Equelle Jelly (orange-flavored with vitamin D, collagen, calcium).
Ingredients offered
- GlossaryActive component5 suppliers
Soy Isoflavones & Equol
大豆イソフラボン・エクオール
Soy isoflavones (aglycone and glycoside forms) and S-Equol produced by Lactococcus 20-92 fermentation. Otsuka Pharmaceutical's 'Equelle' (2014) was the world's first commercial fermented-soy Equol supplement. Only ~50% of Japanese (~30% of Western) women naturally produce Equol from dietary soy.
Nationwide (Otsuka Pharmaceutical Tokushima facility)MOQ 1 kg (concentrate) – 100 kg (lower-concentration grades)
Track record
Client types served
- Established Japanese brands and OEMs
How to talk to Otsuka Pharmaceutical Co., Ltd.
- Email inquiry
- ✓ Available
- Video meeting (Japan hours)
- ✓ Available
- Video meeting (EU hours)
- ✗ Not available
- Video meeting (US hours)
- ✗ Not available
- In-person at their facility (Japan)
- ✓ By appointment
- Overseas in-person
- Conditional — major exhibitions (in-cosmetics, Cosmoprof, FOODEX) and select trade missions
- Languages
- English, Japanese
- Preferred first contact
- Email via OEM JAPAN inquiry form with company profile, target market, and indicative volume
Information based on public sources, manufacturer verification pending
FAQ about Otsuka Pharmaceutical Co., Ltd.
Q. What does Otsuka Pharmaceutical Co., Ltd. produce?
Otsuka Pharmaceutical Co., Ltd. is listed on this platform with 1 ingredient for overseas B2B sourcing. Their listed categories include food ingredients. Examples include Soy Isoflavones & Equol.
Sources
- OEM JAPAN — sourcing platform manufacturer record
- Otsuka Pharmaceutical Co., Ltd. official site
Q. Where is Otsuka Pharmaceutical Co., Ltd. located, and how does that affect shipping?
Otsuka Pharmaceutical Co., Ltd. is based in Chiyoda (HQ), Tokyo, Japan (established 1921). Most Japanese manufacturers ship internationally via Tokyo, Osaka, or Yokohama ports; expect 4–8 weeks typical lead time for production and 2–4 weeks for ocean freight to North America/Europe.
Sources
- OEM JAPAN — sourcing platform manufacturer record
- Industry knowledge — Japanese export logistics
Industry-knowledge claim — not yet pinned to a single primary source
Q. Does Otsuka Pharmaceutical Co., Ltd. support overseas buyers in English?
Yes. Otsuka Pharmaceutical Co., Ltd. is set up to communicate with overseas buyers in English. Initial inquiries are routed through OEM JAPAN's operator team to ensure clear specification handoff.
Sources
- OEM JAPAN — sourcing platform manufacturer record
Q. What certifications and export experience does Otsuka Pharmaceutical Co., Ltd. have?
Otsuka Pharmaceutical Co., Ltd. holds GMP. They have prior export experience (markets served include: Global).
Sources
- OEM JAPAN — sourcing platform manufacturer record
Q. What's the inquiry process for Otsuka Pharmaceutical Co., Ltd.?
Submit an inquiry through OEM JAPAN's form on this page describing your target product, target market, MOQ, and timeline. The operator team verifies the inquiry, contacts Otsuka Pharmaceutical Co., Ltd. on your behalf, and returns with availability, pricing, lead time, and required documentation. There is no direct fee for buyers using this matching service.
Sources
- OEM JAPAN — buyer guide
Disclaimer
Japan Ingredient Sourcing Platform introduces overseas buyers to Japanese ingredient manufacturers. The platform is an information service only and is not a party to any purchase, supply, or manufacturing contract between buyer and seller.
Information shown — including company details, product descriptions, regions of origin, minimum order quantities, lead times, certifications, and regulatory references — is compiled primarily from publicly available sources and manufacturer websites. Specifications change without notice; buyers are expected to verify current specifications, pricing, certification status, and regulatory compliance directly with each manufacturer before placing orders or signing contracts.
The platform operator is not licensed to provide legal, regulatory, customs, tax, or professional advice. References to third-party companies, products, certifications, trademarks, and geographical indications (GI) are factual and do not imply endorsement, sponsorship, or affiliation. All trademarks are the property of their respective owners.
Last updated: 2026-04-24