Your supplement,
in Japan.
Six clearly scoped services — from a free answer on whether your formula is legal here, to a product selling in Japan. You pick what you need; nothing is bundled.
Yusuke Fujii, Ph.D.Former CTO, Metagenics Japan.
Former Chief Product Officer, MSS.
You work with me directly.
Pick what you need. Nothing bundled.
Quick Answer
Send your formulation sheet. We tell you, ingredient by ingredient, whether it can be sold as a food in Japan.
Details Fixed feeFeasibility Read
Ingredients, doses, claims, channel fit, and a rough cost and timeline to launch.
Details Fixed per SKUJapan Reformulation
Swap non-permitted ingredients and adjust doses while keeping what makes the product work.
Details Fixed per SKULabels & Claims
Japanese label, import notification support, and copy that survives 薬機法 review.
Details Per projectMade-in-Japan Product
Formulate and manufacture at our GMP OEM partners — for Japan, or as a made-in-Japan product for Asia.
Details MonthlyLaunch Partner
Rakuten, Amazon JP, your own site, creators and — where it fits — the clinic channel.
DetailsMost founders start with step one — and only go further once the answer is yes.
Send the formula
Supplement facts or full ingredient list with amounts, the channel you're aiming for, and where you sell today.
Get a straight answer
Within five business days: go, reformulate, or not viable — and the reason, ingredient by ingredient.
Choose a service
Only the ones you need. Each has a fixed scope and is quoted before any paid work starts.
Launch
Import it or make it here. We stay on as your Japan team for as long as it's useful.
From first contract to a working Japanese company — once already.
Most advisors have seen one piece of a Japan entry. This is the whole arc, with one US brand.
Exclusive contract
Negotiated the exclusive agreement that brought Metagenics — the largest US practitioner-channel supplement maker — to Japan.
Import & channel
Ran its Japan product management: formulation changes, all import procedures, supply chain, and a medical channel built from zero.
Joint venture
Advised Metagenics Inc. on structuring the Japanese joint venture that became Metagenics Japan.
Running it
Board Director & CTO of Metagenics Japan: formulation, quality, regulatory, training and operations.

“Japan isn't hard. It's specific.
I know the specifics.”
- Chief Product Officer at MSS, Japan's largest practitioner-only supplement company — 7,000+ clinics
- Advisor to a Japanese GMP OEM manufacturer on design, development and quality
- Currently developing products with a leading Japanese D2C gut-health brand
- Ph.D. in Microbiology & Immunology; Visiting Researcher, University of Tokyo Graduate School of Medicine
Send your formulation.
Get a straight answer.
Free, ingredient by ingredient, within five business days.
- Can each ingredient be sold as a food in Japan?
- Are any doses above Japanese limits?
- Go, reformulate, or not viable — and why.