{"id":44368,"date":"2025-11-06T18:40:13","date_gmt":"2025-11-06T18:40:13","guid":{"rendered":"https:\/\/www.humnutrition.com\/blog\/?p=44368"},"modified":"2025-11-06T18:40:13","modified_gmt":"2025-11-06T18:40:13","slug":"what-are-peptides","status":"publish","type":"post","link":"https:\/\/www.humnutrition.com\/blog\/what-are-peptides\/","title":{"rendered":"Peptides Are Trending in Wellness and Longevity Circles\u2014But Are They More Risky Than Rewarding?"},"content":{"rendered":"

Harder, better, faster, stronger. <\/em>It\u2019s not just a Daft Punk lyric anymore, but practically the mantra of peptide devotees across wellness, fitness, and biohacking circles. From beauty to longevity to recovery, peptides are suddenly everywhere. Depending on specific ones at hand, they\u2019re said to improve everything from weight loss<\/a> and muscle gain to skin health and libido<\/a> (and seemingly any and every wellness goal under the sun).<\/p>\n\n\n

The peptide landscape can seem miraculous at first glance\u2014but it\u2019s also murky once you dive below the surface. That said, it\u2019s important to get the facts and figures straight instead of relying on hype from influencers or strangers online.<\/p>\n\n\n

Keep reading for a starter guide to peptides\u2014including what they are exactly and which ones are currently dominating the conversation. Plus, if it\u2019s actually possible to dabble in peptide therapy safely.<\/p>\n\n\n

What Are Peptides?<\/h2>\n\n\n

Simply put, peptides are short chains of amino acids<\/a>. (Amino acids are the same substances that make up the building blocks of protein<\/a>, which have longer chains.) Peptides are naturally occurring in the body, and we produce a vast amount of them daily.<\/p>\n\n\n

\u201cThey act like tiny messengers, sending instructions to your cells, and each one has a specific role,\u201d says Zaid Fadul, MD, FS, FAAFP<\/a>, CEO and concierge physician at Bespoke Concierge MD. Peptides act like cellular to-do lists, regulating everything from tissue repair and inflammation<\/a> to hormone production and immune defense. \u201cBecause peptides are made from the same amino acids found in your body, they often work in harmony with your natural systems,\u201d Dr. Fadul adds. (Many proponents of peptide therapy note this distinction makes them inherently safe, though we\u2019ll get to this point soon enough.)<\/p>\n\n\n

According to Candice Stewart, DNP<\/a>, doctor of nursing practice and owner and injector at Stella Capri Wellness<\/a>, peptides are among the latest and greatest therapies in the biohacking space right now. More people are shifting from reaction to proactivity, thus opting for interventions that can promote health, well-being, and quality of life before major issues arise.<\/p>\n\n\n

1. BPC-157 (Body Protection Compound-157)<\/h3>\n\n\n

BPC-157 is a synthetic compound that\u2019s being touted for its potential healing properties. \u201cAnimal research shows it may help repair tendons, ligaments, and muscles, and protect the stomach lining by promoting blood vessel growth and reducing inflammation,\u201d says Dr. Fadul. \u201cIt appears<\/a> to activate pathways that encourage tissue recovery and new blood vessel formation.\u201d<\/p>\n\n\n

Per Stewart, BPC-157 is most beneficial to heal the digestive tract while also being neuroprotective and cardioprotective.<\/p>\n\n\n

These points considered, Dr. Fadul says that clinical research in humans is extremely limited. There are also conflicting findings to date. \u201cSome researchers are concerned that because it activates pathways involved in both tissue growth and cell migration, it could theoretically support cancer cell activity,\u201d he shares. \u201cHowever, other studies show BPC-157 may have the opposite effect: reducing inflammatory markers linked to tumor growth.\u201d In addition, BPC-157 has no approved indication by the FDA; instead, it\u2019s classified<\/a> under \u201cCertain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks.\u201d (The FDA has also issued warnings<\/a> noting that BPC-157 cannot legally be marketed or compounded for human use.)<\/p>\n\n\n

Despite conflicting evidence and a lack of FDA approval, BPC-157 is anecdotally touted as a miracle worker. (Even with his concerns, Dr. Fadul shares that he has patients swear by the effects\u2014including an older doctor who says BPC-157 helped him recover quickly from a severe tendon rupture.)<\/p>\n\n\n

BPC-157 is usually administered as a subcutaneous or intramuscular injection. These routes are considered to be superior to oral supplementation since it has a smaller chance of surviving stomach acids.<\/p>\n\n\n

2. TB-500 (Thymosin Beta-4)<\/h3>\n\n\n

TB-500 is a synthetic fragment of the naturally occurring protein thymosin beta-4. It\u2019s said to help cells move and regenerate by supporting actin formation, which is a critical part of wound healing and tissue repair, says Dr. Fadul. \u201cAnimal studies suggest potential benefits for healing, reducing inflammation, and improving flexibility. However, human research is almost nonexistent,\u201d he continues, on top of it lacking FDA approval.<\/p>\n\n\n

He adds that there\u2019s caution about possible immune or hormonal side effects, as well as concern about unregulated manufacturing.<\/p>\n\n\n

TB-500 is administered as an injection under the skin.<\/p>\n\n\n

3. KPV<\/h3>\n\n\n

KPV is a tripeptide, meaning it consists of three amino acids (lysine, proline, and valine). Per Dr. Fadul, it\u2019s a natural offshoot of alpha-MSH, an anti-inflammatory hormone. \u201cKPV is recognized for its ability to reduce inflammation, support the immune system<\/a>, and decrease proinflammatory cytokine secretion,\u201d says Stewart. She adds that KPV offers benefits for skin health and wound healing, as well as the potential<\/a> to alleviate symptoms of inflammatory bowel diseases (IBD).<\/p>\n\n\n

However, it\u2019s worth noting that positive study results have been demonstrated in animals and lab cells rather than humans. \u201cNo human safety data exist, and the FDA has not authorized it for human use,\u201d Dr. Fadul shares. KPV is mostly considered experimental at this point, and it\u2019s sometimes labeled as \u201cfor research only\u201d to bypass legal issues.<\/p>\n\n\n

Those who choose to take KPV can opt for injections, oral supplementation, or even topical application.<\/p>\n\n\n

4. MOTS-c<\/h3>\n\n\n

MOTS-c is produced naturally within our mitochondria (aka the cell\u2019s generators of energy). \u201cIt influences metabolism, insulin sensitivity, and how your body converts food into energy,\u201d says Dr. Fadul.<\/p>\n\n\n

Compared to the other peptides on this list, it has the most promising research to date. Per Dr. Fadul, early research in animals and limited human trials link MOTS-c to:<\/p>\n\n\n\n