Legal status · Canada
Is Alpha-ketobutyrate legal in Canada?
Written by Aaron CuhaReviewed Sep 2026
Direct answer
Alpha-ketobutyrate can be sold in Canada as a supplement or cosmetic ingredient, classified as "Sold as a supplement". That is not drug approval: Health Canada has not evaluated any health claim, and injectable or "research use only" versions fall outside supplement rules, so that label does not make human use lawful. On the evidence, 2 human studies are cited on its profile.
Alpha-ketobutyrate in Canada at a glance
| Classification | Sold as a supplement |
|---|---|
| Health Canada approval status | Not a Health Canada drug approval; sold as a supplement or cosmetic |
| Human studies cited | 2 of 3 citations on the profile |
| Reviewed | Sep 2026 |
Classification and note come from the Alpha-ketobutyrate profile, checked against Health Canada, Health Products and Food Branch (Health Canada) listings at the reviewed date.
What this means
- 01
Alpha-ketobutyrate can be sold in Canada as a supplement, food or cosmetic ingredient under the classification above, without drug approval.
- 02
Supplement status means Health Canada has not evaluated any health claim; manufacturers are responsible for safety and labeling, and quality varies by product.
- 03
Injectable or "research use only" versions are not supplements. That label does not make human use lawful, and injectables fall under medicines rules.
What Alpha-ketobutyrate is
One lifespan paper, in Caenorhabditis elegans. In humans the closely related metabolite alpha-hydroxybutyrate is not a longevity marker at all: it is an early marker of insulin resistance that predicted worsening glucose tolerance in 3,841 non-diabetic people across two cohorts. No trial of supplementing alpha-ketobutyrate in humans was located.
Alpha-ketobutyrate is sold on the strength of a single well-executed worm paper, and the human data that exist about the same corner of metabolism point in an awkward direction. The worm paper is real and its mechanism is worked out in unusual detail.
Mechanism: Alpha-ketobutyrate sits at the end of the transsulfuration pathway. When cystathionine is cleaved to make cysteine, alpha-ketobutyrate is released as the by-product, so its production rises whenever flux from homocysteine to cysteine rises.
Regulatory history: Not an approved drug and not an established dietary ingredient with a defined intake. Sold in a small number of longevity supplement products, generally as a salt.
How Health Canada treats this kind of product
Authorises drugs for sale through a Notice of Compliance and Drug Identification Number. A compound that is not authorised for sale cannot lawfully be sold for human use, and personal importation of prescription drugs is limited.
The classification above is the The Longevity Archive reading of Health Canada, Health Products and Food Branch listings for Alpha-ketobutyrate at the reviewed date, not a legal opinion. Rules change, and importing, prescribing and possessing a compound can each be treated differently. Check the regulator directly before acting on anything here.
Alpha-ketobutyrate in other countries
United States
Not approvedSold as a supplement
Is Alpha-ketobutyrate legal in the United States?United Kingdom
Not approvedSold as a supplement
Is Alpha-ketobutyrate legal in the United Kingdom?Australia
Not approvedAvailable as a supplement / complementary medicine
Is Alpha-ketobutyrate legal in Australia?Frequently asked questions
Is Alpha-ketobutyrate legal in Canada?
Alpha-ketobutyrate can be sold in Canada as a supplement or cosmetic ingredient, classified as "Sold as a supplement". That is not drug approval: Health Canada has not evaluated any health claim, and injectable or "research use only" versions fall outside supplement rules, so that label does not make human use lawful. On the evidence, 2 human studies are cited on its profile.
Can I buy Alpha-ketobutyrate in Canada?
Yes, in supplement or cosmetic form. In Canada Alpha-ketobutyrate is classified as "Sold as a supplement", so oral, topical or cosmetic products can be sold under supplement rules. Injectable versions and products labeled "research use only" are not supplements and are not approved for human use.
Is Alpha-ketobutyrate Health Canada approved?
No. In Canada Alpha-ketobutyrate is classified as "Sold as a supplement", which is not a Health Canada marketing approval. For comparison, the US FDA status is: Not an approved drug and not an established dietary ingredient with a defined intake. Sold in a small number of longevity supplement products, generally as a salt.. On the evidence, 2 human studies are cited on its profile.
Related compounds in Canada
Full research profile
Mechanism, cited studies, FDA status and the full legal summary for Alpha-ketobutyrate live on its compound profile.
Alpha-ketobutyrate profileThis page is general information about the regulatory status of Alpha-ketobutyrate in Canada, current as of Sep 2026. It is not legal advice, and classifications change; check Health Canada, Health Products and Food Branch directly or consult a lawyer for a specific situation. Educational use only. This database summarizes published research. It is not medical advice and contains no dosing protocols or recommendations for personal use. The Longevity Archive has no vendor relationships and does not recommend where to buy anything.