Q'sai

What Q'sai does

Q'sai is a Japanese consumer health and wellness company headquartered in Fukuoka, Japan, operating since 1965 (60th anniversary in October 2025) and repositioned in 2022 as a "Well Aging Company" (ウェルエイジングカンパニー). Originally founded as a confectionery business, the company pivoted to kale juice in 1982 and has since built a three-pillar portfolio: (1) kale/green juice products under THE KALE brand, (2) healthcare supplements including collagen, knee joint support (Hiza Support Collagen — Japan's first functional food in the knee joint category, 2015), and the newly launched f44 femcare line, and (3) skincare products including the cola-rich franchise (35 million cumulative units sold as of March 2026) and the BIONIA cosmetics series.

Q'sai's core technology centers on proprietary kale processing methods: low-oxygen fresh clear processing, ultra-fine particle processing, frozen pulverization (achieving sub-tens-of-microns powder without oxidation), and mild powder processing that uses only water to create granules without additives. Manufacturing is concentrated at the Fukuoka Kominato Factory (held via wholly-owned subsidiary Q'sai Products Co., Ltd., separated via absorption-type split in January 2024) with GMP, FSSC22000, ISO45001, and Organic JAS certifications. Raw material supply is vertically integrated through Q'sai Farm Shimane, which produces approximately 900 tons of pesticide-free kale annually across roughly 70 hectares (~15 Tokyo Domes) with 94% kale recycling rate.

The business operates a dual B2C/B2B model. B2C channels span TV commercial-driven mail order, e-commerce (Rakuten, Amazon, morecos+), approximately 500 physical retail outlets (drugstores under the Alb brand, general supermarkets, HMV & BOOKS), and a subscription/regular purchase program. B2B includes kale ingredient supply to hotels/restaurants, OEM supply to food makers, and the "Q'sai Vegetable Supplement" corporate wellness program. Individual consumer SKUs price at ¥1,650-¥5,599, with subscription and bundle options. Per Yano Research Institute, Q'sai holds 18 consecutive years (2007-2024) of #1 market share in Japan's mail-order collagen health food category. Q'sai is privately held by Q-Partners since February 2021, following acquisition by Coca-Cola West in 2010. FY2025 consolidated group revenue was ¥26.65 billion (approximately $175M USD) across 337 employees as of December 2025.

Name

Q'sai

Legal name

キューサイ株式会社 (Q'SAI CO., LTD.)

Website

https://corporate.kyusai.co.jp

Company type

Private

Founded year

1965

Operating status

Operating

Headcount range

251–500 employees

Short description

Q'sai is a Japanese consumer health company (founded 1965, Fukuoka) selling kale juice, collagen supplements, and skincare products primarily to consumers aged 40+ under its "Well Aging Company" positioning, with #1 mail-order collagen market share for 18 consecutive years and ¥26.65B FY2025 revenue.

Ownership category

akta.pro rank

Product category

Functional Foods and Wellness Supplements

NAICS

Food (Health) Supplement Retailers (456191), Health and Personal Care Retailers (456)

SIC

Beverages (2080), Canned, Frozen & Preservd Fruit, Veg & Food Specialties (2030), Canned, Fruits, Veg, Preserves, Jams & Jellies (2033)

akta.pro primary industry

Fresh Fruit & Vegetable Juices & Juice Blends (Cold-Pressed, NFC, From Concentrate) (AFAKAFAB)

akta.pro secondary industries

Functional Foods & Supplement Formats (Gummies, Chews, Powders, Shots) (CRADAGAI), Healthy Aging & Cognitive Support Supplements (CRADAGAM)

Keywords

• Kale juice products
• Collagen supplements
• Skincare products
• Direct mail sales
• Functional health foods

Headquarters

HQ city

Fukuoka

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Marketing or Sales, Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure

Revenue model

1. 通信販売（B2C）: 电视CMやECサイトを 通じた通信販売。主力商品の青汁シリーズやヘルスケア商品、スキンケア商品を个人客に直接販売。定期購入やまとめ買いなどの Subscription型も展開
2. 法人向け事業（B2B）: ホテル・飲食店向けケール食材の卸販売、食品メーカーへの原料供给、「キューサイ野菜補充機」の企业への導入。生協・カタログ通信販売・総合スーパー向け供应
3. mymeサービス: LINEを活用したAI健康管理サービス「myme」。未来的に協業パートナーの 商品・サービスの販売へとつなげるプラットフォーム型サービス

Pricing tiers

Go-to-market motion1 record

Distribution channels8 records

Marketing channels8 records

Core offering

Q'sai is a Well Aging Company that develops, manufactures and sells kale-based green juice (THE KALE), collagen skincare lines (cola-rich, cola-rich soar, BIONIA), functional health foods (Hiza Support Collagen, N-Acetylglucosamine Z, DHA&EPA), femcare supplements (f44, DAYLIS), and operates the myme AI lifestyle habit service via LINE. Products are sold primarily through TV commercial-driven mail order, e-commerce, and physical retail channels to individual consumers in Japan.

Differentiator

Problem solved

Functional benefit

Brands

• THE KALE (ザ・ケール): Kale-based green juice and kale powder product line, the company's flagship health product since 1982.
• cola-rich (コラリッチ)
• cola-rich soar (コラリッチ ソア)
• Hiza Support Collagen (ひざサポートコラーグッド)
• BIONIA (イオニア)
• f44 (エフ フォーティ フォー)
• DAYLIS
• myme (マイミー)

Products and services

• THE KALE (青汁) — Kale Green Juice The flagship frozen kale juice product line — powdered kale green juice sold through mail order to consumers seeking daily nutritional supplementation.
• cola-rich soar 4-product skincare line (Day Lift Essence Milk, Set Up Lotion, Night Charge Lift Essence, Protection Cream) Premium collagen skincare line under the cola-rich brand, featuring day/night differentiation and morning emulsion with Dayfend Collagen for adult firmness and makeup application.
• f44 Femcare brand (Hop, Laphlach, Liposomal Iron, Univestin) Femcare supplement brand targeting women aged 44 and above navigating perimenopausal changes, offering four supplement SKUs for daily hormonal and physiological support.
• DAYLIS Easy Collagen Single-ingredient low-molecular collagen powder supplement emphasizing ease of use and daily continuation, positioned at approximately 90 yen per day.
• BIONIA Cosmetics Premium cosmetics line developed in collaboration with beauty expert IKKO, using proprietary microbiome technology for evolving skin beauty.
• Hiza Support Collagen (膝サポートコラーゲン) Functional food supplement targeting knee joint health — Japan's first functional food display product in the knee joint category, with collagen peptide as the functional ingredient.
• N-Acetylglucosamine Z (functional food) Functional food supplement containing N-Acetylglucosamine, sold through mail order at approximately 5,599 yen for a 30-day supply.
• DHA & EPA supplement DHA and EPA omega-3 fatty acid supplement sold through mail order at approximately 2,100 yen for a 30-day supply.
• myme (マイミー) AI Lifestyle Habit Service

Quantifiable outcome

• コラーケン健康食品 通販売上額 18期连续 No.1（2007年度～2024年度）
• +4 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability4 records

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• ・パナソニック株式会社coreStrategic or Co-development Partner · 23 June 2026キューサイとパンツルを、女性特有の健康課題による企業課題の解决に向けた共同実証を開始。体調ナビゲーションサービス「RizMo」を活用した福利厚生サービスの検証を行う。女性の健康课题解决的のための包括的な協业关系。
• 阪和記念病院coreStrategic or Co-development Partner · 24 September 2025mymeサービスの提供において医療機関として監修を担当。根拠のある健康管理の提案を支障する。
• 株式会社ジーンクエストcoreStrategic or Co-development Partnermymeの共創パートナーとして連携。遺伝子の檢查サービスとキューサイのAI健康管理サービスを組み合わせた包括的な健康管理サービスを提供。
• tsumugite LLC./村岸産業/AMAZONPLUS/ATEX/ぬちがふぅ/Dream/東海光学株式会社/Genequest/RENASSANCE/ELECOM/BMZ/ほんやら堂/RIO GROUP HLDGS./SHINBISHIN/dream factory/comoaceminorGTM or Marketing Partnermymeの共創パートナー企业（16社）が、生活習慣改善商材·衰老の気づき商材·心身を整节える商・サービス等领域で連携。mymeユーザーの属性·行動を活かしたマーケティング戦略の共創。

Scale indicators8 records

Recent moves12 records

Expansion highlights6 records

Direct peers

• FANCL Corporation: FANCL is Japan's leading mail-order cosmetics and supplement company (FANCL Mild Cleansing Oil, HTC collagen, supplements), directly competing with Q'sai's cola-rich and collagen supplement lines through similar D2C/mail-order channels and target demographic of health-conscious Japanese women.
• DHC Corporation: DHC is Japan's largest mail-order cosmetics and supplement company, with overlapping D2C mail-order model, collagen/skincare products, and health-supplement portfolio that compete directly with Q'sai across most of its core categories.
• Kobayashi Pharmaceutical: Kobayashi Pharmaceutical is a leading Japanese OTC and functional-food company (Naical, Shouro, supplements), competing with Q'sai in functional foods and supplements, and offering similar R&D-driven health brands sold through Japanese drugstore and mail-order channels.
• ITO EN: ITO EN is Japan's largest tea and vegetable juice producer (Oi Ocha, ITO EN Veggie Life), directly comparable to Q'sai on the kale/green juice side and on D2C distribution of health beverages to the same Well Aging consumer demographic.

Broad incumbents

• Shiseido Company: Shiseido is Japan's largest skincare/cosmetics company with premium brands (SHISEIDO, ELIXIR, Hada Senka, Clé de Peau) that overlap with Q'sai's cola-rich and BIONIA skincare lines; its scale and R&D budget make it a broad incumbent competing for the same Well Aging female consumer.
• Pola Orbis Holdings: Pola Orbis operates premium skincare brands (POLA, ORBIS, H2O+) targeting aging-conscious women via direct-sales channels, competing with Q'sai's cola-rich soar and BIONIA in the anti-aging skincare space; broader portfolio but overlapping target buyer.
• Meiji Holdings: Meiji operates a large functional foods and dairy portfolio (Meiji R-1, Savas, collagen supplements) sold through Japanese drugstores and supermarkets, making it a broad incumbent competitor in Q'sai's functional-food and supplement categories.
• Yakult Honsha: Yakult is a leading Japanese functional beverage company (Yakult, Yakult 1000) targeting health-conscious consumers through direct-sales and retail, comparable to Q'sai on the functional/health beverage side and the broader well-aging positioning.
• Kirin Holdings: Kirin operates a health science business (Kenkou Brand iMUSE, Orangina) and owns Kyowa Hakko Bio (biochemicals/collagen peptide ingredients), making it both a potential B2B supplier/comparable and a broad incumbent competitor in Q'sai's health-food and functional-ingredient space.

Regional players

• Noevir Holdings: Noevir is a Japanese direct-sales skincare and supplement company (Noevir, Chattanooga) targeting middle-aged women via door-to-door mail-order channels, comparable to Q'sai's D2C skincare/supplement model and Well Aging demographic, though with a smaller brand portfolio.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/kyusai_official
• YouTubeyoutube.com/channel/UCeyaUJX3QxvtfgEXqiiwCnQ
• Facebookfacebook.com/kyusai.official
• Instagraminstagram.com/kyusai_kale_official

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Q'sai