What Are the Best Longevity Peptides for Women?

The lifespan results behind popular longevity peptides such as epitalon come from mouse studies. For a woman, the better question is which peptide has human results for the change she wants. Sermorelin, a lab-made fragment of the hormone that tells your body to release growth hormone, has a five-month placebo-controlled study in older women and men behind it. NAD+, a molecule your cells use to make energy, has a randomized, placebo-controlled trial in adults 45 to 75. Both sermorelin and NAD+ can be prescribed and made by compounding pharmacies. Topical GHK-Cu copper peptide is the skin option, and it has a long record of safe cosmetic use.

Which longevity peptides have been tested in people?

Sermorelin's history matters if you're wondering whether it's legitimate. Geref was discontinued in 2008 for commercial reasons, and FDA determined it was not withdrawn for safety or effectiveness. A physician can generally prescribe sermorelin, and pharmacies can legally compound it.

Epitalon is the internet's favorite longevity pick, but how it works is still unclear. FDA says compounded epitalon may cause an immune reaction (immunogenicity) from clumping and impurities. FDA also says it lacks enough information to know whether epitalon would cause harm in people.

What can sermorelin do for a woman over 40?

Sermorelin's measured payoff for women is thicker skin. A human study of this approach included women. In a 5-month placebo-controlled trial, 10 women and 9 men aged 55 to 71 injected themselves every night for 16 weeks. They used a close version of sermorelin, a modified form of the same growth-hormone-releasing fragment. Nighttime growth hormone rose in both women and men. IGF-1, the messenger that carries growth hormone's signal through the body, went up within 2 weeks.

Skin got thicker in both women and men. Gains in lean muscle, insulin sensitivity, general well-being and libido showed up only in the men, and sleep quality did not change for anyone. If you want thicker skin, sermorelin has a human result in women behind it. If you're hoping it will fix your sex drive or your sleep, this study didn't show that for women.

The only side effect in that study was a temporary rise in blood fats, which went away by the end. With sermorelin in general, the most common side effects are facial flushing, headache, dizziness and hives at the injection site. Ask your clinical team what to watch for.

Online clinics advertise compounded sermorelin from $99 a month at CoreAge Rx up to $211.83 a month at PeterMD. Other clinics charge $129, $143 to $179 and $199.99 a month (telehealth price comparison). Our clinical team can prescribe sermorelin if it fits your goal.

Does NAD+ do anything you can feel?

Not in the first week, based on the human data so far. NAD+ inside your cells can be raised fast. In a randomized, placebo-controlled trial, 60 healthy adults aged 45 to 75 were assigned to an oral form of NAD+ called LNAD+ or a placebo for 5 days. LNAD+ raised NAD inside their blood cells, while NAD in the plasma (the liquid part of blood) stayed the same. These results belong to that oral form and weren't tested with injections or sprays.

Raising cell NAD did not change how people felt in those 5 days. Their fatigue, depression and anxiety scores were no different from placebo, and their sleep didn't change. Treat NAD+ as a longer-term cell-energy choice, not a same-week pick-me-up.

Side effects were rare. One person had mild nausea that cleared within a day, and blood tests stayed in normal ranges. If you have kidney disease, tell your clinical team. The study authors note that NAD+ breakdown products rose 3.5- to 5.5-fold, and those products build up in kidney disease.

Online clinics advertise compounded NAD+ from $93 a month at CoreAge Rx to $199 every 4 weeks at Luvo Health. All of these are compounded and not FDA-approved (telehealth price comparison). NAD+ is part of Hot or Nothing energy and aging plans, and NAD+ face cream is in our skin plans.

Are ipamorelin, CJC-1295 and MOTS-c worth trying?

They can be for some women, but they're earlier bets than sermorelin and NAD+. FDA has safety notes on all three, so your clinical team weighs them case by case.

Ipamorelin triggers growth hormone release in pulses, and it's selective. Unlike similar compounds, it doesn't significantly raise cortisol or prolactin. In a small human trial, a 7-day course after surgery was generally safe but did not change recovery. FDA lists ipamorelin acetate in category 2 for 503B outsourcing facilities, its group for substances that may present significant safety risks. FDA notes possible immune reactions. It also cites a study that found serious adverse events, including death, when ipamorelin was given by IV for gut motility.

FDA has also identified serious adverse events with CJC-1295. These include a faster heart rate and a body-wide reaction from widened blood vessels. In a dose trial, 94% of people on CJC-1295 had side effects, compared with 29% on placebo. Ask your clinical team what to watch for.

MOTS-c is the earliest-stage pick. FDA says it has not found any human exposure data for MOTS-c by any route. If your real goal is metabolism or weight, a 2026 sports medicine review names GLP-1 medicines as a safe and effective alternative. GLP-1s are in Hot or Nothing weight plans. Your clinical team decides whether MOTS-c, ipamorelin or CJC-1295 fits your plan.

Which longevity peptide should I start with?

Match the peptide to the change you want to see.

• Firmer, better-textured skin: Look at topical GHK-Cu, plus sermorelin. Sermorelin is the one peptide here with a human skin-thickness result in women.
• Energy at the cell level: Look at NAD+. Keep in mind that the human trial measured cell NAD and did not find a change in tiredness.
• A leaner body and better metabolism: A GLP-1 has the human data, so ask about that first.
• One at a time: Start with one peptide so you can tell what's working. A 2026 sports medicine review describes how social media and peer hype push people to keep adding peptides, until they're taking many drugs at once.
• What piling on felt like for one person: A Reddit user taking many peptides for sleep wrote, "Some days I'll have good energy, but most days I feel tired but wired. Brain never slows down."

Take the quiz to tell us whether you want better skin, more energy or a leaner body. Your clinical team matches you to the peptide with human results for that goal and checks it against your health history.