How Nootropics Are Regulated: US, UK, EU, Canada and Australia

Summary table

United States

The FDA says that under the Dietary Supplement Health and Education Act it does not have the authority to approve dietary supplements before they are marketed. [2] It also says a firm does not have to provide FDA with the evidence it relies on to substantiate safety before or after marketing, with an exception for new dietary ingredients. [2] A "new dietary ingredient" is one not marketed in the US before October 15, 1994 in the FDA's wording. [2] The FDA advises talking with a doctor, pharmacist or other professional before using a supplement. [2]

Ingredient examples show the limits. The FDA says phenibut does not meet the statutory definition of a dietary ingredient, so supplements declaring it are misbranded. [3] It says tianeptine is not a dietary ingredient and is an unsafe food additive. [4] It says kratom is not lawfully marketed as a drug, dietary supplement or food additive. [5] See Phenibut, tianeptine and kratom. Prescription drugs are separate: modafinil is described by the authors of a 2025 laboratory paper as a Schedule IV drug in the US, while analogs such as adrafinil remain unapproved and/or unscheduled. [10] Details are on Modafinil, armodafinil and adrafinil and Racetams.

United Kingdom

GOV.UK guidance for businesses says food supplements are not medicinal products and cannot exert a pharmacological, immunological or metabolic action. [6] It places responsibility on the seller to ensure safety. [6]

Separately, the GOV.UK overview of the Psychoactive Substances Act 2016 says the act applies across the UK and came into force on 26 May 2016. [7] It describes offences to produce, supply, import or export psychoactive substances, and excludes substances such as food, alcohol, tobacco, nicotine, caffeine and medical products. [7] Controlled drugs stay under the Misuse of Drugs Act 1971. [7] How the act applies to a specific nootropic ingredient is not described in the sources we read. Ask a pharmacist or check the regulator.

European Union

The EU rule for food claims aims to make sure any claim on a food label is clear and substantiated by scientific evidence. [8] EFSA verifies the scientific substantiation of submitted claims and the European Commission and Member States decide whether to authorise them. [8]

The 2023 review said many popular nootropics are unauthorized food or supplement ingredients according to the European Commission, including huperzine A, yohimbine and dimethylaminoethanol. [1] The same review noted that several are authorized supplement ingredients in the US, creating global variability in what counts as a legal nootropic. [1] We did not read the European Commission lists directly, so treat that as the review authors' statement.

Canada

Health Canada's page says it authorizes natural health products and non-prescription drugs for sale in Canada. [9] We could not verify further details such as licence numbers from the pages we could read. Look up a product in Health Canada's own database before assuming it is authorized.

Australia

Proper evidence not found: the Therapeutic Goods Administration (TGA) pages we tried did not load in this session, so no Australian claims are made. Check the TGA website directly.

What this means for readers

• A product sold in one country may be unlawful or unapproved in another. [1]
• Products labelled as supplements can contain unapproved drugs. See Gray-market research chemicals and counterfeit brain products.
• Legal does not mean tested for safety or effectiveness: the FDA does not approve supplements before marketing. [2]
• Ask about medicine interactions (medication interactions), and note pregnancy, children, kidney, liver and surgery cautions on Supplement safety resources.

For a broader comparison of supplement rules, see Supplement regulation by country and How supplements are regulated.