- Cardarine isn’t a SARM. It activates PPAR-delta, a receptor that shifts muscles toward burning fat.
- It boosted endurance dramatically in mice and improved blood lipids in small human studies.
- Its developer stopped work on it in 2007 after rodents given it developed cancers in multiple organs.
- WADA took the unusual step of warning athletes about its health risks, not just its prohibited status.
Cardarine is sold alongside SARMs and often called one, but it works in a completely different way. It’s also the compound with the most serious red flag in its development history. This guide explains both.
What is Cardarine?
GW501516 was developed in the 1990s by GlaxoSmithKline and Ligand as a potential treatment for high cholesterol, obesity and diabetes. It activates PPAR-delta, a receptor that switches on genes for burning fat and building endurance-type muscle fibres. In a well-known 2008 study, mice given it alongside training ran substantially further, which earned it the nickname “exercise in a pill”.
Human research
Small clinical studies in humans found that GW501516 raised HDL cholesterol, lowered triglycerides and LDL, and improved some markers of insulin sensitivity. There are no long-term human safety studies.
Why development stopped
In 2007, GSK ended development after long-term animal studies found that rodents given GW501516 developed cancers in several organs, including at doses not far above those being explored for people. In 2013 the World Anti-Doping Agency issued a rare health warning to athletes about black-market GW501516, citing these findings.
This is a serious unknown. Animal results don’t always apply to people, but no study has shown Cardarine is safe long term, and the developer judged the risk too high to continue.
What users report
- Better endurance and cardio capacity
- Fat loss during a diet
- Few immediate side effects
Because it isn’t an androgen, Cardarine doesn’t suppress testosterone. Its main risk is the long-term one described above.
Legal status in Canada
GW501516 isn’t approved by Health Canada and isn’t listed in the Controlled Drugs and Substances Act. It’s prohibited in sport as a metabolic modulator under the World Anti-Doping Code.
Buying Cardarine in Canada
We stock Cardarine Zionova (5 mg tablets) and Cardarine Genetix Pharma (10 mg tablets), both in bottles of 50. Per mg, Genetix is cheaper at the time of writing. See the SARMs page for live prices.
Frequently asked questions
Is Cardarine a SARM?
No. It’s a PPAR-delta agonist that affects fat metabolism and endurance, not the androgen receptor.
Does Cardarine cause cancer?
Rodents given it developed cancers in multiple organs, which is why development stopped. Whether that applies to humans is unknown.
Does Cardarine suppress testosterone?
No. It isn’t an androgen.
Is Cardarine legal in Canada?
It isn’t approved by Health Canada and isn’t listed in the CDSA.
Products mentioned in this guide
This article is general information for adults in Canada, not medical advice. Talk to a doctor or pharmacist before using any prescription drug, anabolic steroid or research compound, and get bloodwork done. If you’re in crisis, call or text 9-8-8 (Suicide Crisis Helpline) any time.
