The sentence that sells in Japan is the sentence that stops abroad.
In two hours your team learns which of your product claims survive abroad, and how to rewrite the ones that do not, on your own pages.
In-house training for brand and OEM teams, in Japanese, by a cell biologist who reads English claims for a living.
Amisha · MEng Biomedical Engineering, University of Tokyo · cell biologist · Osaka

What happens in the room
Bring the product pages your team is proudest of.
We put the Japanese sentence, the US sentence and the EU sentence side by side and work out, claim by claim, which ones your data can carry across the border, which ones need one more study, and which ones need a different sentence. Half the time is your pages. The other half is the method: the four kinds of claim and how each one fails, the origin gate, what “clinically proven” means to a reviewer in each market, and the words that translate badly (浸透, 再生, 効果, 医療).
The two hours

- Why the sentence that sells here stops there. Ten minutes.Three anonymised receipts: a fold change from fibroblasts written as a skin result; “clinically proven” on an uncontrolled study of six; a particle count that contradicts itself across two pages. The data was fine. The sentence was not.
- The four kinds of claim and how each one fails. Twenty-five minutes.Composition claims fail on measurement, mechanism claims on delivery, outcome claims on study design, status claims on definition. Then the evidence labels: human, model, company data, observation. A claim is only as strong as its weakest label.
- The same data, a different sentence in each country. Twenty minutes.Japan's permitted claims and the 角層まで convention; the US line between cosmetic and drug, and class actions as the real enforcer; the EU's common criteria and the origin gate; Korea's functional cosmetics and the exosome word ban. One table, four columns.
- Workshop on your pages. Forty minutes.Teams fill a three-column sheet for every claim: what you want to say, what today's data lets you say, and the study that would close the gap. I rewrite one claim per team live, in English, and say why each word changed. We close with the one sentence each product should never carry.
- What you take home. Fifteen minutes.The one-page checklist, the marked-up pages within three days, a shared vocabulary so marketing and R&D stop having the same argument, and questions.
What you take home
Within three days of the session, as PDF, to everyone who was in the room.

- One pageThe seven checks.Seven questions, in order, before any English page goes live. Printed, it lives next to the copywriter.
- Your three pagesMarked up, claim by claim.Passes, stops, the rewrite, and the study that would unlock the sentence you wanted.
- One sheet, one vocabularyThe three-column worksheet and the shared word list.Marketing and R&D fill the same sheet the same way, so the same argument stops recurring.
Formats
- In houseTwo hours, up to 15 people, your pages.¥120,000Travel outside Osaka and Kyoto billed at cost. Online available.
- In houseHalf day, with a second rewrite session.¥220,000For teams with more than three products to work through.
- Open seminarOnline, 90 minutes, ten seats.¥15,000 per seatNext date: November 2026, to be announced.
Who it is for
Marketing, product and R&D teams at Japanese brands and OEMs preparing English materials; agencies that write for them; teams who already work with a 薬機法 adviser for Japan and want the overseas half.
Who it is not for
Teams who need product registration or regulatory filings. That is a different specialist, and I am glad to introduce one.
Enquire about a date
Tell me the team, the products and the markets you care about. I send a one-page plan and two or three dates. Pre-work is three product page URLs, one sentence you are proud of and one you are unsure of, a week before.
Every participant leaves with the checklist, the marked-up pages and a first read on one product at the training-client rate.
I provide scientific communications support: evidence review, claims-language risk flagging, and ingredient rationale writing. I am not a physician, a regulatory professional, or a cosmetic chemist, and I do not conduct clinical testing. Nothing in the training is legal advice; the line we work to is “what the data lets you say,” and final legal and regulatory approval of any claim stays with your counsel or a qualified regulatory consultant.