Category Hub where we discuss peptides by type (e.g. weight loss, hair growth, etc.)
No peptide is proven to boost energy in healthy, tired adults. The ones sold for energy — mainly MOTS-c, SS-31 and growth-hormone boosters like sermorelin — have been studied mostly in animals or in people with specific diseases, and the results are mixed. NAD+, the other big name, isn’t actually a peptide at all. Here’s…
Copper peptides have shown real promise for hair growth in lab dishes and in animals. A copper peptide is a tiny protein fragment bound to a copper atom, and the two you’ll see most are GHK-Cu and AHK-Cu. In people, though, the evidence is thin. We couldn’t find a published trial that tested a copper…
Only a handful of peptides have actually been tested in women. Just one, bremelanotide (sold as Vyleesi), is FDA-approved for a women-specific use as of September 2026: low sexual desire in women who haven’t gone through menopause. The weight-loss drugs semaglutide and tirzepatide have strong evidence from large trials that included many women. They’re GLP-1…
“Longevity” peptides are a loose group of lab-made compounds, such as Epitalon, MOTS-c and GHK-Cu, that researchers are studying for possible effects on aging inside your cells. That research covers energy production in your mitochondria (the tiny structures inside cells that turn food into usable energy), skin and tissue repair, and other processes tied to…
“Immune support” peptides are lab-made compounds studied for how they affect your immune system. Some are studied for helping it fight infection, and others for calming inflammation that’s gone into overdrive. A few, like thymosin alpha-1, have real human research behind them. Others, like KPV, are mostly still animal studies. None of these peptides are…
No peptide is FDA-approved as a sleep aid, as of September 2026. The ones people talk about most are DSIP, epitalon, and a group of “growth hormone” peptides like sermorelin and ipamorelin, and each has only a small, mostly older body of human research behind it. None has been proven to work in the large,…
A plain-language guide to “nootropic peptides:” What’s been tested in people, what’s only been tested in animals, and how each one is sold. A handful of peptides get talked about for focus, memory, and calm. Peptides are short chains of amino acids, the same building blocks that make up proteins. And the best known for…
“Healing peptides” usually means one of two lab-made compounds, BPC-157 and TB-500, that researchers are studying for whether they help tendons, muscles, and the gut repair themselves faster. The evidence so far comes almost entirely from animal studies, not human trials. Neither compound is FDA-approved for any use. If you’ve seen them for sale online,…
You’ll find peptides in two very different places, 1) In skincare you rub on, and 2) In injectable off-label compounds people use (for a purpose the product was never approved for) to boost sexual desire or get a tan. The two groups can’t be swapped for each other. They also don’t share the same evidence,…
Growth hormone “secretagogues” — sermorelin, tesamorelin, CJC-1295, and the GHRPs like ipamorelin — are compounds that prompt your pituitary gland, the small gland at the base of your brain, to release more of your own growth hormone. ⚠ They are not growth hormone itself, and they are not steroids. They range from an FDA-approved prescription…