FANCL BRAINs
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FANCL BRAINs falls short.
FANCL BRAINs is a Japanese Food with Function Claims product (機能性表示食品, notification G425) from one of Japan's most trusted health brands. It is sold through FANCL's official Rakuten store, where it is labelled 機能性表示食品. A mainstream option for Japanese consumers who prefer domestic brands with Japanese-language labels and local customer support. FANCL was acquired by Kirin Holdings in 2024. Kirin has launched an international DTC arm (KHSI Pty Ltd, Sydney) from April 2026 and is actively developing new brain health ingredients (Agrimonia pilosa). Kirin's strategic focus on longevity and cognitive health reinforces FANCL BRAINs' long-term credibility.
What it does
FANCL BRAINs is a Japanese functional food supplement (機能性表示食品) formulated to support memory and cognitive function. Made by FANCL Corporation, a household name in Japanese health and beauty with over 40 years of history. Unlike imported Western nootropics, FANCL BRAINs is sold through FANCL's official Rakuten store, labelled 機能性表示食品, and is notified under Japan's Foods with Function Claims (FFC) system: the Consumer Affairs Agency (CAA, 消費者庁) database lists notification G425, 商品名 ＢＲＡＩＮｓ（ブレインズ）, 届出者 株式会社ファンケル, notified 2021/08/18, with the functional ingredients バコパサポニン、熟成ホップ由来苦味酸 at 15 mg + 35 mg per 4 tablets a day (CAA database, checked 2026-10-06).
How it works
FANCL's notified functional ingredients (機能性関与成分) are bacopa saponins (15mg per 4 tablets) and matured hop bitter acids (35mg per 4 tablets). Per FANCL's Food with Function Claims notification (届出番号 G425), bacopa saponins are reported to help maintain memory — the ability to remember and recall things seen and heard in daily life — which declines with age, and matured hop bitter acids are reported to help maintain attention (processing several pieces of information at once, and processing information correctly) and to reduce temporary feelings of anxiety in daily life. FANCL cites a 12-week trial of bacopa saponins at 12.5mg/day and 12-week trials of matured hop bitter acids at 35mg/day. As with every 機能性表示食品, these claims are the manufacturer's notified evidence, not a government evaluation.
What to expect
Weeks 1-2: no noticeable acute effects — this is a foundational supplement, not a stimulant. Weeks 4-6: subtle improvements in recall speed and mental clarity, particularly in adults over 40. At 12+ weeks: sustained brain health maintenance. FANCL recommends 4 tablets daily. It is sold through FANCL's official Rakuten store, labelled 機能性表示食品 (notification G425). At ¥5,479 for a 30-day bag (list price on fancl.co.jp; ¥4,930 on subscription), it is significantly cheaper than imported alternatives with zero import duty or customs risk.
Hero ingredients
- Bacopa saponins15mg
- Matured hop bitter acids35mg
Who it's for
- FFC-notified (機能性表示食品, notification G425)
- Sold through FANCL's official Rakuten store
- Affordable
Who should skip
- FANCL's 90-day return for unsatisfied buyers (even after opening) excludes some products; check that BRAINs is covered
Dosing audit
| Ingredient | Label | Clinical | Status |
|---|---|---|---|
| Bacopa saponins (バコパサポニン) | 15mg | 12.5mg (trial cited by FANCL) | ✓ Pass |
| Matured hop bitter acids (熟成ホップ由来苦味酸) | 35mg | 35mg (trials cited by FANCL) | ✓ Pass |
Ingredient quality
Number and quality of evidence-graded ingredients. Trademarked extracts and standardized actives raise this score.
Dosing vs. clinical evidence
How many ingredients meet their clinical-trial dose. Underdosing flagship actives is the biggest score deduction.
Formula transparency
Full disclosure of every ingredient at its exact dose. Proprietary blends are scored as opaque.
Value for money
Cost per month relative to per-serving clinical doses delivered. Cheaper products with underdoses score lower.
Brand trust
Brand reputation, third-party testing, refund track record, and Trustpilot signal across multiple years.
How the score is computed
Each pillar is weighted by editorial importance. Weights are constant across every brand we audit — they're not adjusted to favour any particular product.
- Ingredient quality25%
- Dosing vs. clinical evidence30%
- Formula transparency20%
- Value for money15%
- Brand trust10%
No Trustpilot profile
FANCL doesn't have an active Trustpilot listing — this is common for Amazon-only sellers, marketplace brands, and regional pharmacy chains.
The Trust pillar in our editorial score still applies and reflects brand reputation, third-party testing, and refund track record.
販売元サイトの記載
販売元の公式ページから原文のまま引用しています。条件は変わることがあるため、購入前にご確認ください。
配送
ご購入金額が5,000円（税込）以上の場合は送料当社負担、5,000円（税込）未満の場合は送料360円（税込）のご負担をお願いいたします。
出典：fancl.co.jp （新しいタブで開きます）（確認）
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本ページのリンクから商品を購入されると、当サイトは紹介料を受け取ります（お客様の追加負担はありません）。 スコアと順位は公開している評価方法に基づいて決定しており、紹介料の影響は受けません。
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健康に関する免責事項
本ページは教育目的の編集コンテンツであり、医学的助言を構成するものではありません。日本国内で販売される機能性表示食品（FFC）および特定保健用食品（FOSHU）は、消費者庁への届出または許可を必要とします。届出のない輸入品については、日本の薬機法（旧薬事法）の下で疾病治療を示唆する表現は規制されます。サプリメントを開始する前に、必ず資格のある医療専門家にご相談ください。This page is editorial and not medical advice. Foods with Function Claims (FFC) and Foods for Specified Health Uses (FOSHU) sold in Japan require notification or approval from the Consumer Affairs Agency. Imported products without notification cannot make disease-treatment claims under the Pharmaceuticals and Medical Devices (PMD) Act. Note: In July 2026, the Consumer Affairs Agency (CAA) opened a public comment period (Notice No. 235080088, closes 30 July 2026) on proposed revisions to permitted claim wording for FFC-notified ingredients including DHA, phosphatidylserine, and NMN; compliant claim language may require updating once the final Cabinet Office Order is published. Consult a qualified healthcare professional before starting any supplement.