pluskampo株式会社
3 known investors
Japanese healthtech company running +kampo, an online questionnaire service where pharmacists select personalized Chinese herbal medicines.
Also known as +kampo · pluskampo Co., Ltd. · プラス漢方 · 株式会社オフィス薬局
Investors · 3
Also in the syndicate · 2
Company profile
researched Aug 2026pluskampo株式会社 (pluskampo Co., Ltd.) is a Tokyo-based healthcare company that operates "+kampo" (プラス漢方), an online service through which licensed pharmacists recommend Kampo (Japanese traditional herbal) medicines and supplements to individual users. Customers complete an online medical questionnaire, after which an assigned pharmacist selects suitable herbal formulations; the recommendation and purchase link are delivered via LINE. Support continues before and after purchase, with pharmacists answering questions over LINE or online consultations and following up on changes in physical condition and perceived efficacy for subscribers through a "+concierge" service.
The initial product line launched in November 2021 covered fatigue and constipation symptoms, with six products given Japanese-styled names (YAMABUKI, KUMPU, RURI, SHUNRIN, NOWAKI, HAGOROMO). The company has since extended into women's health (menopause, PMS, post-partum conditions), supplements combining equol with Japanese-Chinese herbal ingredients ("エクオール バランスビューティ"), diet-oriented sets, a corporate benefits offering called "働くあなたのサポート漢方" that places stocked medicine kits in offices alongside personal online pharmacist counselling, and an online health/medical consultation service run with partner clinics. The company is led by representative director and pharmacist Yuki Sasamori and lists physician Masanori Niimi as medical advisor.
Founding story
Founder Yuki Sasamori, from Aomori Prefecture, graduated from Tohoku Medical and Pharmaceutical University and qualified as a pharmacist. After six years in dispensing pharmacies he encountered Kampo medicine, was influenced by its approach of drawing out the body's natural healing capacity, worked as a freelance pharmacist and then founded the company to make Kampo more approachable.
Business model
Direct-to-consumer sale of over-the-counter Kampo medicines and supplements bundled with pharmacist support, sold both as one-off purchases and as subscriptions; a B2B channel sells a workplace benefit package combining placed-medicine kits (billed to the company per opened package, monthly in arrears) with personal online counselling shipped to employees' homes.
Product sales: fatigue-symptom subscriptions priced at 3,400 yen for a first 10-day supply and 9,500 yen for 30 days thereafter (4,000 yen for a 10-day single purchase); constipation products at 4,290 yen for a first 10-day subscription supply and 5,500 yen single purchase. Corporate placed-medicine inventory is billed by box when opened.
Traction
Headcount of about 10; capital of 25.02 million yen as of November 2021, later listed as 48.59 million yen; post-money valuation estimated by a third-party database at 392 million yen as of 2024-07-11.
Latest developments
On 2024-11-26 the company launched an online health/medical consultation and treatment service in cooperation with clinics, described as an oral immunotherapy offering that does not require in-person visits.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
Operates in Japan's OTC Kampo market, which the company described as roughly 60 billion yen in scale and expanding alongside supplements and health foods amid rising health awareness.
Combines online convenience with a named pharmacist assigned to each customer for pre- and post-purchase support, long-term constitutional adjustment rather than symptomatic treatment, and Japanese-branded product naming and packaging.
Technology
Online medical questionnaire feeding pharmacist-led product selection, LINE-based messaging and online consultation for follow-up, and an online inventory management system for corporate placed-medicine kits.
Go-to-market
Direct online sales via the +kampo brand site with LINE as the customer communication channel, crowdfunding-based pre-sales for new supplement products, PR TIMES press releases, Instagram and Twitter presence, business partnerships (e.g. foriio) and clinic tie-ups, and a field sales team of licensed pharmacists visiting corporate customers every one to three months.
Consumers seeking herbal treatment without visiting a clinic or Kampo pharmacy — initially people with fatigue and constipation, later those with menopause, PMS, post-partum and hormone-related complaints, plus men's and general conditions; and employers purchasing the offering as an employee benefit.
Geography
Japan; headquartered at Cube Kanda 2F, 3-17 Kanda Nishikicho, Chiyoda-ku, Tokyo.
History
Established 2019-01-24 as 株式会社オフィス薬局. In July 2021 the company announced a seed-round third-party allotment of shares and changed its trade name to pluskampo. The +kampo service began full operation on 2021-11-09. Subsequent milestones include a business partnership with foriio (April 2022), a menopause coaching offering (March 2022), crowdfunding pre-sales (July 2022) and general release (November 2022) of the Equol Balance Beauty supplement, a diet-focused Kampo x equol set (January 2023) and an online health/medical consultation service with partner clinics from 2024-11-26.
Risks & controversies
The company notes that Kampo medicines can occasionally cause side effects such as rashes or gastrointestinal problems, and therefore recommends a 10-day trial period before longer subscriptions; it states it holds the licenses required to own and sell the placed inventory and handles risk-classification-based information provision and adverse-event response.
Compiled by commissioned research from 6 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 9
launches, deals, and filingsClinic-linked online consultation service positioned as oral immunotherapy accessible without hospital visits.
Service combining Kampo medicine and menopause coaching, timed to Women's Health Week.
Service opened with six products covering fatigue (YAMABUKI, KUMPU, RURI) and constipation (SHUNRIN, NOWAKI, HAGOROMO), online questionnaire, pharmacist selection and LINE support.
Third-party allotment of shares in a seed round; amount undisclosed. Announced together with the corporate name change.
Seed-round third-party allotment to be used for service development, awareness building for OTC Kampo use cases, branding, hiring and marketing for user growth.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 6
primary sources listed
- pluskampo｜STARTUP DB（スタートアップデータベース）startup-db.com · web
6 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does pluskampo株式会社 do?
- Japanese healthtech company running +kampo, an online questionnaire service where pharmacists select personalized Chinese herbal medicines.
- Who are pluskampo株式会社's investors?
- pluskampo株式会社's investors include W Inc..