Services
Quick AnswerFree · 5 business daysFeasibility ReadFixed fee · 2–3 weeksJapan ReformulationFixed per SKU · 3–6 weeksLabels & ClaimsFixed per SKU · 2–4 weeksMade-in-Japan ProductPer project · 4–8 monthsLaunch PartnerMonthly · Ongoing
Company
How it worksAbout日本語 Send your formulation
Supplements · Japan · For founder-led brands

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

Yusuke Fujii, Ph.D.Former CTO, Metagenics Japan.
Former Chief Product Officer, MSS.
You work with me directly.

Ingredient screeningReformulationJapanese labellingClaims reviewFoods with Function ClaimsGMP manufacturingRakuten & Amazon JPCreator partnershipsClinic channel
How it works

Most founders start with step one — and only go further once the answer is yes.

01

Send the formula

Supplement facts or full ingredient list with amounts, the channel you're aiming for, and where you sell today.

02

Get a straight answer

Within five business days: go, reformulate, or not viable — and the reason, ingredient by ingredient.

03

Choose a service

Only the ones you need. Each has a fixed scope and is quoted before any paid work starts.

04

Launch

Import it or make it here. We stay on as your Japan team for as long as it's useful.

Proof

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.

2009

Exclusive contract

Negotiated the exclusive agreement that brought Metagenics — the largest US practitioner-channel supplement maker — to Japan.

2011–2016

Import & channel

Ran its Japan product management: formulation changes, all import procedures, supply chain, and a medical channel built from zero.

2018–2019

Joint venture

Advised Metagenics Inc. on structuring the Japanese joint venture that became Metagenics Japan.

2019–2024

Running it

Board Director & CTO of Metagenics Japan: formulation, quality, regulatory, training and operations.

Yusuke Fujii, Ph.D.
Who you work with
“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.

  1. Can each ingredient be sold as a food in Japan?
  2. Are any doses above Japanese limits?
  3. Go, reformulate, or not viable — and why.