The truth about why we don’t stock GW501516 – and why you should be cautious if you see it elsewhere.
What is Cardarine?
Cardarine (GW501516) is a PPARδ receptor agonist originally developed for metabolic and cardiovascular research. It was never approved for human use and was discontinued during preclinical trials.
So why isn’t it sold anymore?
Because Cardarine has been shown to cause cancer in animal studies – and not just in one tissue. Rodent trials by GlaxoSmithKline (GSK) found widespread tumor formation across multiple organs after long-term exposure. These findings led to:
Abandonment of clinical development
WADA blacklisting it as a prohibited substance
Global regulatory rejection for human or veterinary use
At Max Muscle Labs, we’re committed to offering only research compounds with a tolerable safety profile based on current literature. Despite its popularity in underground circles, Cardarine’s carcinogenic potential is well-documented and serious. That’s why:
❌ You won’t find Cardarine (GW501516) on our site
✅ You will find safer, well-characterised alternatives like MK-677 (for endurance/hormonal studies) or SR9009 (for metabolic research), each with clearer safety thresholds
FAQ
Is Cardarine legal in the UK? It’s not a controlled substance, but it is not approved for human consumption or sale as a supplement. Research-only use is legally ambiguous and discouraged.
Is it banned in sports? Yes – the World Anti-Doping Agency (WADA) lists GW501516 as prohibited at all times due to its performance-enhancing effects and health risks.
Are there safer alternatives? For research into endurance or metabolic pathways, compounds like SR9009 or MK-677 may offer insights without the same level of carcinogenic risk.
Bottom Line
If a supplier is selling Cardarine, it’s a red flag. Either they’re ignoring serious safety data – or they’re not up to date with modern toxicology. For ethical research and safety, we’ve taken a firm stance: no Cardarine, ever.
“While Enclomiphene shows promising endocrine selectivity, researchers must remain aware of its systemic interactions and off-target effects in experimental models.” – Dr. J.A. Lipshultz, Urology Insights, 2023 Why Side Effects Still Matter – Even in Research Think side effects don’t apply in lab settings? Think again. Whether you’re modeling hormone pathways, conducting receptor binding studies, …
When it comes to SARMs, labelling isn’t enough – you need data. That’s where HPLC comes in – the gold standard for verifying compound purity, safety, and identity. High-Performance Liquid Chromatography (HPLC) is the industry-standard analytical method used to verify the purity, identity, and stability of chemical compounds, including Selective Androgen Receptor Modulators (SARMs). It’s …
If you’ve ever searched for SARMs, one name shows up everywhere: RAD-140, often called Testolone.But what is RAD-140, really?And why has it become one of the most talked-about research compounds of the last decade? Key Takeaways Let’s break it down using the latest data, a clear explanation of mechanisms, and what researchers should actually know …
Short answer:No – enclomiphene is unlikely to cause erectile dysfunction (ED).In most cases, it does the opposite. But let’s unpack why people ask this, what the science actually shows, and when problems canhappen. “It is generally accepted that nitric oxide (NO) is the principal agent responsible for relaxation of penile smooth muscle.” PMC The Core …
Hurry while stocks last! Use code PAYDAY15 at checkout to get 15% off sitewide. Valid for
Join the WaitlistWe will inform you when the product is back in stock. Enter your email address below.
Why isn’t Cardarine (GW501516) available?
The truth about why we don’t stock GW501516 – and why you should be cautious if you see it elsewhere.
What is Cardarine?
Cardarine (GW501516) is a PPARδ receptor agonist originally developed for metabolic and cardiovascular research. It was never approved for human use and was discontinued during preclinical trials.
So why isn’t it sold anymore?
Because Cardarine has been shown to cause cancer in animal studies – and not just in one tissue. Rodent trials by GlaxoSmithKline (GSK) found widespread tumor formation across multiple organs after long-term exposure. These findings led to:
Why we don’t stock it
At Max Muscle Labs, we’re committed to offering only research compounds with a tolerable safety profile based on current literature. Despite its popularity in underground circles, Cardarine’s carcinogenic potential is well-documented and serious. That’s why:
FAQ
It’s not a controlled substance, but it is not approved for human consumption or sale as a supplement. Research-only use is legally ambiguous and discouraged.
Yes – the World Anti-Doping Agency (WADA) lists GW501516 as prohibited at all times due to its performance-enhancing effects and health risks.
For research into endurance or metabolic pathways, compounds like SR9009 or MK-677 may offer insights without the same level of carcinogenic risk.
Bottom Line
If a supplier is selling Cardarine, it’s a red flag. Either they’re ignoring serious safety data – or they’re not up to date with modern toxicology. For ethical research and safety, we’ve taken a firm stance: no Cardarine, ever.
🔍 Want to explore safer research compounds? Browse our collection →
Let me know if you’d like to adapt this into a blog, product notice, or compliance page.
Related Posts
Enclomiphene Side Effects Explained
“While Enclomiphene shows promising endocrine selectivity, researchers must remain aware of its systemic interactions and off-target effects in experimental models.” – Dr. J.A. Lipshultz, Urology Insights, 2023 Why Side Effects Still Matter – Even in Research Think side effects don’t apply in lab settings? Think again. Whether you’re modeling hormone pathways, conducting receptor binding studies, …
The Role of HPLC in SARMs Testing
When it comes to SARMs, labelling isn’t enough – you need data. That’s where HPLC comes in – the gold standard for verifying compound purity, safety, and identity. High-Performance Liquid Chromatography (HPLC) is the industry-standard analytical method used to verify the purity, identity, and stability of chemical compounds, including Selective Androgen Receptor Modulators (SARMs). It’s …
What Is RAD-140? Updated Guidance for Researchers
If you’ve ever searched for SARMs, one name shows up everywhere: RAD-140, often called Testolone.But what is RAD-140, really?And why has it become one of the most talked-about research compounds of the last decade? Key Takeaways Let’s break it down using the latest data, a clear explanation of mechanisms, and what researchers should actually know …
Can Enclomiphene Cause Erectile Dysfunction?
Short answer:No – enclomiphene is unlikely to cause erectile dysfunction (ED).In most cases, it does the opposite. But let’s unpack why people ask this, what the science actually shows, and when problems canhappen. “It is generally accepted that nitric oxide (NO) is the principal agent responsible for relaxation of penile smooth muscle.” PMC The Core …