Injectable peptides were promoted as the new fountain of youth. but the science isn’t there

Crocodile dung. Tapeworm. Raw meat facial. At one time in history these were wildly popular – and wildly unproven – treatments by which the (wealthiest) men and women of that time tried to maintain youth, beauty, and strength.

Right now, many influencers will tell you that injectable peptides are the answer.

But research and scientists? Not so much.

While the drug uses well-studied injectable peptides, namely insulin and GLP-1, like Ozempic, the effectors these peptides emphasize have neither been approved by Health Canada nor studied in large-scale human trials. Instead, they are often sold through the “grey market”, meaning they are sold legally for research purposes but purchased for unintended uses.

Actually, the regulatory agency has issued a warning April 2025 and then in August Against purchasing these unregulated medicines online. Globally, the World Anti-Doping Agency has also Many of these injections were banned for professional athletes.

However, America is taking a different turn. Health Secretary Robert F. Kennedy Jr. announced on Joe Rogan’s podcast in February that he wants to ease tightened Food and Drug Administration rules in 2023 on the mixing of 14 popular peptides by pharmacies.

New York Times gave this news on Wednesday This change could happen any day now, leaving scientists and health researchers interviewed very disappointed.

What are they really?

At the molecular level, naturally occurring peptides are amino acids. These are building blocks, about 50 of which when combined together form a protein. Inside your body, peptides help regulate hormones, digestion and appetite. They also aid in the immune system and muscle growth and repair, among other things.

Many unregulated synthetic injectable peptides are marketed as growth hormone stimulants to help build muscle faster and with less effort, while others are known as the holy grail of youth.

“The evidence for these things versus the claims people have made is essentially empty,” said Stuart Phillips, Canada Research Chair in Skeletal Muscle Health. “There are no large-scale human trials. There are no efficacy trials. There are no safety trials.”

why now?

What’s happening right now is a classic case of “science-exploitation,” said Tim Caulfield, Canada Research chair and an expert in legal and ethical issues around commercialization in medicine at the University of Alberta.

These influencers, he said in an interview on CBC, are “using a real area of ​​research … that’s probably making headlines and you take that word ‘science’ and you use it to market unproven theories.” diet podcast.

He says that unproven theories are being pushed by the “manosphere” – certain online communities whose content Critics say it could promote misogynistic and harmful views. He says it’s also rampant among “looksmaxing” influencers and “tech bros” trying to predict success, who believe “you should constantly be trying to optimize.”

Caulfield compares it to a sudden influx unregulated stem cells Products that emerged after progress many years ago stem cell research This has no bearing on how the products were actually being marketed. And Ozempic has now become a part of pop culture because it can be a life-changing drug, he said, noting it’s one of the catalysts for injectable peptide pushes on TikTok, Instagram and podcasts.

In the US, Rogan is confidently telling the 11 million people who listen to each episode of his podcast how injecting the “Wolverine Stack” – two peptides, BPC-157 and TB-500 – has helped him, as well as professional athletes, recover from training-related injuries. Guests also noted similar benefits to those shown in animal tests.

While these anecdotes may seem credible coming from a professional communicator, Caulfield says, it’s not driven by data. Replicating the results of an animal study in large-scale human trials increases the success rate of regulatory approval. around five up to 10 percent, Based on multiple analyzes.

“If you were a betting man, you would bet against animal studies being relevant to humans in a clinical context,” Caulfield said.

risk

The manufacturers of these peptides are largely unregulated, which means there is no guarantee that the medications are being made in a sterile environment. That means an injection could deliver bacteria into the body and, in a worst-case scenario, Caulfield says, could lead to sepsis — a life-threatening reaction to infection that can shut down major organs.

It’s also not clear whether people get the peptides they pay for. As well as gray market producers, commercial laboratories have emerged that test samples of injectable peptides for purity. But these are also unregulated, Phillips warns, and the need to test these products should also be a red flag.

“It really says you’re acknowledging that you see there are no real guardrails in this market,” he said.

And if the peptides are biologically active, Caulfield says, due to the lack of studies it cannot be predicted how they will interact with the body or what the correct dosage would be.

Peptide BPC-157 has been shown to accelerate tissue repair by increasing blood vessels in the body based on an animal study, something like Scientists have warned Could potentially encourage the growth of cancerous or pre-cancerous cells.

“If they are indeed biologically active, what harm can they do to the body?” Coffield said. “What might their long-term biological effects be?

To Phillips, one of the most obvious issues is that you’re paying for snake oil until rigorous scientific testing proves otherwise.

“This is a huge scam,” he said. “If they were as good as claimed, why weren’t they patented? Why didn’t pharma tailor these things?”

bottom line

Caulfield’s advice? Do not order uncertified pharmaceuticals online and inject them into your body.

“I really don’t think you should be ordering a pharmaceutical product that we know hasn’t been clinically tested,” he said.

And for those looking for the fountain of youth? Well, there is no easy button, pill or cream.

“The truth is that boring things work,” Phillips said. “Being physically active, eating a sensible diet, having a good social circle, having a sense of purpose – and good sleep.”