Legal status · Canada
Is Gpld1 legal in Canada?
Written by Aaron CuhaReviewed Sep 2026
Direct answer
No. Gpld1 is not an approved medicine in Canada; its classification is "Research use only; not approved". 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. On the evidence, 2 human studies are cited on its profile.
Gpld1 in Canada at a glance
| Classification | Research use only; not approved |
|---|---|
| Health Canada approval status | Not approved by Health Canada |
| Human studies cited | 2 of 4 citations on the profile |
| Reviewed | Sep 2026 |
Classification and note come from the Gpld1 profile, checked against Health Canada, Health Products and Food Branch (Health Canada) listings at the reviewed date.
What this means
- 01
No product containing Gpld1 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 Gpld1 is
A liver enzyme released into blood during exercise that transferred the cognitive benefits of running to sedentary aged mice. Higher in active older people; never administered to anyone.
In 2020 a Science paper reported that plasma from exercised aged mice, transfused into sedentary aged mice, transferred the effects of exercise on adult neurogenesis and cognition. Screening the plasma identified Gpld1, a liver-derived enzyme that cleaves glycosylphosphatidylinositol anchors, as rising after exercise and correlating with improved cognitive function in aged mice.
Mechanism: In mice, Gpld1 is a liver-derived enzyme released into plasma after exercise that cleaves glycosylphosphatidylinositol anchors, releasing GPI-anchored proteins from cell surfaces. The 2026 Cell work identifies GPI-anchored tissue-nonspecific alkaline phosphatase on brain endothelium as the substrate that carries the cognitive effect: cerebrovascular levels of that enzyme rise with age, mimicking that rise impaired blood-brain transport and cognition in young mice, and inhibiting it restored youthful hippocampal transcriptional signatures and rescued cognition in old mice.
Regulatory history: Not approved and never administered to a human. No interventional trial of Gpld1 is registered for any indication. The only registered human study using it is observational.
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 Gpld1 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.
Gpld1 in other countries
Frequently asked questions
Is Gpld1 legal in Canada?
No. Gpld1 is not an approved medicine in Canada; its classification is "Research use only; not approved". 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. On the evidence, 2 human studies are cited on its profile.
Can I buy Gpld1 in Canada?
No approved product exists to buy. In Canada Gpld1 is classified as "Research use only; not approved", 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 Gpld1 Health Canada approved?
No. In Canada Gpld1 is classified as "Research use only; not approved", which is not a Health Canada marketing approval. For comparison, the US FDA status is: Not approved and never administered to a human. No interventional trial of Gpld1 is registered for any indication. The only registered human study using it is observational.. 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 Gpld1 live on its compound profile.
Gpld1 profileThis page is general information about the regulatory status of Gpld1 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.