If your social feed is clogged with influencers raving about peptides lately, you’re not alone. Some say they're the secret to faster muscle recovery. Others claim they heal injuries, melt fat or even slow aging.
Before you spend hundreds of dollars on the latest injectable or pill making the rounds online, here's a reality check from Erik Dean, DO, sports medicine physician and independent member of the HonorHealth Medical Staff.
Myth: Peptides are a brand-new wellness breakthrough.
Fact: Your body has been making peptides all along.
The peptide trend is about injectable options like BPC-157 and TB-500 — nicknamed the “Wolverine stack” when paired — being promoted online for muscle growth, injury recovery and longevity. But your body is already familiar with peptides.
"They’re naturally occurring chains of amino acids, which are the building blocks of protein," says Dr. Dean. "They occur naturally in our bodies, and many are also manufactured for use in medicine."
In fact, peptide-based medications have been around for years. Insulin is a peptide. Many hormones are peptides. GLP-1 medications used to treat diabetes and obesity are peptide drugs, too.
Myth: If everyone on social media is using peptides, they must work.
Fact: Popular doesn't mean proven.
Many influencers talk about peptides as though their benefits are already established. But for most of the products being promoted, the evidence simply isn't there yet.
"Just because something is biologically plausible doesn't mean it's been proven safe or effective," Dr. Dean cautions. “We don't have long-term studies in humans. There are some limited studies in animals, but those findings can't be predictably translated to people."
Scientists continue to study peptides because they may mimic proteins your body naturally makes. Keep in mind, promising research is not the same thing as clinically proven treatment.
Myth: If you can buy peptides, they must be safe.
Fact: Safety is not guaranteed.
Unlike most prescription medications, peptide products sold online aren't FDA approved. "Because many of these products are sold over the counter, they're not regulated for safety or effectiveness," Dr. Dean explains. "That should give people pause."
There's no guarantee that the product even contains what's listed on the label. And even if it does, potential dangers can range from minor swelling at the injection site to infection or allergic reaction. Seek emergency care if you have a fever, or severe redness or pain, after injecting peptides.
"Hopefully future studies will help us better understand the safety, effectiveness and appropriate dosing for these products," Dr. Dean says. That's how medicine is supposed to work: research first, and recommendations second.
Myth: There's nothing you can do while waiting for science.
Fact: Basics still beat biohacks.
If your goal is to build muscle, recover from exercise or support healthy aging, you don't need the latest viral trend to make meaningful progress. Dr. Dean recommends sticking with evidence-based approaches.
"That includes physical therapy when appropriate, physician-directed injection therapies, adequate protein intake and, for some people, creatine supplementation for strength training," he says.
You can also improve your long-term health with quality sleep, stress management and routine checkups. They may not rack up millions of views on TikTok, but they have something even better: real evidence.