Legal status · Canada
Is B7-33 legal in Canada?
No. B7-33 is not an approved medicine in Canada; its classification is "Not authorized for sale". Nothing containing it is authorized for any use in people. Vials labeled "for research use only" are not exempt: that label does not make human use lawful. Human evidence: Preliminary.
B7-33 in Canada at a glance
| Classification | Not authorized for sale |
|---|---|
| Health Canada approval status | Not approved by Health Canada |
| Evidence level | Preliminary (research strength: Preliminary) |
| Reviewed | Sep 2026 |
Classification and note come from the B7-33 profile, checked against Health Canada, Health Products and Food Branch (Health Canada) listings at the reviewed date.
What this means
- 01
No product containing B7-33 is approved by Health Canada for any use in Canada, so nothing on the market is authorized for people.
- 02
"Research use only" is a vendor label, not a legal category that permits human use. It does not exempt a product from medicines law.
- 03
Importing, supplying or promoting it for human use can fall under medicines legislation in Canada. This page is general information, not legal advice.
What B7-33 is
A simplified relaxin analog that activates the RXFP1 receptor with a bias toward anti-fibrotic signaling; animal and cell data only.
Relaxin is a hormone with anti-fibrotic effects but is hard to manufacture. B7-33 is a single-chain derivative that reproduced relaxin's anti-fibrotic actions in animal models of heart and lung fibrosis without the receptor-desensitizing cAMP signaling.
Mechanism: Functionally selective RXFP1 agonism biased toward pERK-mediated anti-fibrotic signaling.
Regulatory history: Not approved
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 B7-33 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.
B7-33 in other countries
United States
Not approvedNot approved; sold 'for research use only'
Is B7-33 legal in the United States?United Kingdom
Not approvedUnlicensed medicine; supply for human use is unlawful
Is B7-33 legal in the United Kingdom?Australia
Not approvedNot approved; Schedule 4 or import-restricted
Is B7-33 legal in Australia?Frequently asked questions
Is B7-33 legal in Canada?
No. B7-33 is not an approved medicine in Canada; its classification is "Not authorized for sale". Nothing containing it is authorized for any use in people. Vials labeled "for research use only" are not exempt: that label does not make human use lawful. Human evidence: Preliminary.
Can I buy B7-33 in Canada?
No approved product exists to buy. In Canada B7-33 is classified as "Not authorized for sale", so there is no licensed pharmacy product. Vendors selling it "for research use only" are not selling it for human use, and that label does not change its legal status. This site does not list or recommend vendors.
Is B7-33 Health Canada approved?
No. In Canada B7-33 is classified as "Not authorized for sale", which is not a Health Canada marketing approval. For comparison, the US FDA status is: Not approved. Evidence level: Preliminary.
Related compounds in Canada
Full research profile
Mechanism, cited studies, FDA status and the full legal summary for B7-33 live on its compound profile.
B7-33 profileThis page is general information about the regulatory status of B7-33 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.