What are “Japanese vitamins for the brain”? FFC-notified supplements vs. imported nootropics

The phrase covers two groups that are regulated very differently. The first is domestic products that carry a function claim under Japan's Foods with Function Claims system (機能性表示食品, FFC). FANCL BRAINs is one of them: it is FFC-notified under notification number 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; Consumer Affairs Agency (CAA) database, checked 2026-10-06).

Not every well-known Japanese brain-health product is FFC-notified, though. For Suntory DHA&EPA+Sesamin EX no FFC notification was found in the CAA database (export scanned 2026-10-06), and the Suntory Wellness official Rakuten listing we checked shows no 機能性表示食品 labelling.

The second group is international nootropic stacks such as Mind Lab Pro, NooCube, Performance Lab Mind and Hunter Focus. All four are in our Japanese catalogue, and for none of them was an FFC notification found under the product or company name in the CAA database (export scanned 2026-10-06). The distinction matters because an FFC function claim comes from a notification filed with the regulator before sale; a product with no notification has no FFC claim to display.

FFC is administered by the Consumer Affairs Agency (CAA, 消費者庁). Under rules set by the government, a business notifies the CAA Commissioner, before sale, of the scientific evidence for the product's safety and functionality, and may then display a function claim on the product.

The key word is notification. The CAA itself states that, unlike FOSHU, the government does not review FFC notifications: the business has to label the product appropriately, on its own responsibility, based on the scientific evidence. The CAA's English-language labelling material says the same thing in one line: Foods with Function Claims are “labelled with health functions under food business operators' responsibility.”

In practice, an FFC label tells you that a company has filed its evidence with the regulator. It does not tell you that the regulator has checked that evidence.

For the full map of Japan's functional-food categories, and our audit of the Japanese catalogue against them, see our FFC-notified cognitive supplements guide. This page does not repeat it.

FOSHU (特定保健用食品, often shortened to トクホ) is the stricter route. To be sold as FOSHU, each individual product must have its effectiveness and safety reviewed by the government and receive approval, under Article 43(1) of the Health Promotion Act. In the CAA's English terminology, FOSHU products are “labelled with health functions under approval by the Commissioner of CAA”, while FFC products are labelled under the operator's own responsibility. Our catalogue records the imported stacks above in the general-foods category: no FFC notification was found for them under the product or company name in the CAA database (export scanned 2026-10-06). When a Japanese product mentions memory or attention, the first thing to check is which of these routes it used.

An industry ingredient index that compiles CAA notification data lists the following among the active ingredients used in cognitive-function FFC notifications:

• Ginkgo biloba leaf-derived terpene lactones and flavonoid glycosides (イチョウ葉由来テルペンラクトン / フラボノイド配糖体)
• Lutein (ルテイン)
• Matured-hop-derived bitter acids (熟成ホップ由来苦味酸)
• Bacopa saponins (バコパサポニン)
• DHA
• GABA
• Phosphatidylcholine

Treat this as a list of what companies have notified, not as a ranking of evidence. Because the government does not review FFC notifications, an ingredient's presence on the list means a company filed evidence for it, not that the evidence was independently confirmed. For the research behind individual ingredients, use our ingredient database.

FANCL BRAINs is a useful example because it can be checked end to end, from the label to the regulator's database.

What it claims. FANCL's product page states that Bacopa saponin (バコパサポニン) helps maintain memory, one part of the cognitive function that declines with age, and that matured-hop-derived bitter acid (熟成ホップ由来苦味酸) helps maintain attention. That is function wording, and we reproduce it as FANCL states it rather than paraphrasing it into anything stronger.

How to verify it yourself. FANCL's product page gives the notification number G425 and tells shoppers to check the notification details on the CAA's site:

1. Open the CAA FFC notification database (届出情報検索).
2. Enter G425 in the notification-number (届出番号) field and search.
3. Compare the notifier and the function claim with what is printed on the product you are holding.

The database is an interactive web application: it needs JavaScript and an interactive search, so there is no simple link straight to a record. Our own automated check could not query it, which is why we confirmed G425 against FANCL's product page; run the search above yourself before relying on it.

Where it is sold. FANCL runs an official store on Rakuten, where BRAINs is listed and explicitly labelled as a 機能性表示食品 product.

Mind Lab Pro ships to Japan: its own FAQ lists Japan among the territories it ships to. For NooCube, Performance Lab Mind and Hunter Focus we have not confirmed Japan shipping ourselves for this page, so we make no shipping claim for them here; check at checkout.

For none of these four products was an FFC notification found under the product or company name in the CAA database (export scanned 2026-10-06), so none of them carries an FFC function claim in Japan. That means the Japanese regulatory label cannot help you compare them, and you have to judge them on their ingredients and doses instead.

This page is the explainer; for the buying comparison, use our Best Nootropics in Japan roundup (also in Japanese). For picks by goal, see the best nootropics for memory and best nootropics for focus in Japan. For side-by-side data, use the nootropic comparator or the Japanese-language brand comparison table (比較).

Our Japanese-language guide to yakkan shoumei (薬監証明) covers personal-import paperwork in detail. This section adds two points an English-language searcher is likely to miss.

The quantity guidance is written for drugs. The Ministry of Health, Labour and Welfare's personal-import guidance limits poisons, potent drugs and prescription drugs to a one-month supply based on the dosage, and other pharmaceuticals and quasi-drugs (医薬品・医薬部外品) to a two-month supply. That is the basis for the commonly cited “two-month rule”, and it targets those drug categories rather than ordinary food-category supplements such as FFC products.

Some classic nootropics are restricted regardless of quantity. Since 1 January 2019, personal import of 25 designated “smart drug” compounds without a doctor's prescription or instruction has been prohibited in principle. The list includes:

• piracetam
• aniracetam
• oxiracetam
• pramiracetam
• levetiracetam
• nefiracetam
• etiracetam
• vinpocetine
• adrafinil

In Japan these compounds are classed as pharmaceuticals (医薬品), even where they are sold as supplements abroad. Researchers at Japan's National Institute of Health Sciences describe the same restriction in a conference poster: since 2019, individual import of the 25 designated smart drugs without a prescription has been limited. So a quantity threshold alone does not answer “can I import piracetam?”; for these compounds the answer is no, whatever the amount, unless a doctor has prescribed or instructed it.

The one retail channel we confirmed for this page is Rakuten, where both domestic examples on this page have official brand stores. FANCL's official Rakuten store lists BRAINs, labelled as a 機能性表示食品 product, and Suntory Wellness's official Rakuten store lists DHA&EPA+Sesamin EX.

We have not verified availability at other Japanese retailers for this page, so we do not list any. Wherever you buy a domestic product, check the listing or the package for the 機能性表示食品 label and its notification number, then look the number up in the CAA database as shown above.