Research Peptides Directory

Semaglutide is a GLP-1 weight loss drug (brand names Wegovy and Ozempic) that helps reduce appetite and control blood sugar. It's FDA-approved and is one of the most prescribed obesity medications worldwide.

Tirzepatide is a dual-action weight loss drug (brand names Zepbound and Mounjaro) that targets two hormone receptors to reduce appetite and improve blood sugar. It's FDA-approved and delivers stronger weight loss than semaglutide.

Retatrutide is an investigational triple-action weight loss peptide that targets three metabolic pathways at once. In clinical trials, it's produced the strongest weight loss results ever seen from a drug — nearly 29% body weight reduction.

BPC-157 is a healing peptide originally derived from a protein found in the human stomach lining. It's best known for potentially speeding up recovery from injuries to muscles, tendons, ligaments, and the gut. It may work by calming inflammation at injury sites, boosting blood flow to damaged tissue, and helping new blood vessels form — all of which support faster healing. It's especially popular for gut health, where it may help repair the stomach lining and protect against ulcers and irritation. BPC-157 may also support wound healing by improving collagen production, and some research suggests it could help with nerve-related pain by reducing inflammation. It's one of the most widely studied and commonly used peptides in the research community.

Oxytocin is the 'bonding hormone' peptide that plays a role in social connection, trust, and emotional well-being. It's naturally released during hugging, childbirth, and breastfeeding.

NAD+ is a critical molecule for cellular energy production and repair that declines with age. Supplementing NAD+ precursors may help improve energy levels, brain function, and slow aspects of aging.

Semax is a brain-boosting peptide that may help with focus, memory, and mental clarity. It's available as a nasal spray and is approved in Russia for neurological conditions.

MK-677 is an oral growth hormone booster that may improve sleep quality, increase muscle mass, and speed up recovery. Unlike most peptides, you take it as a pill instead of an injection.

CJC-1295 is a growth hormone-releasing peptide that may boost your body's natural growth hormone production. It's often paired with Ipamorelin for enhanced effects on recovery, sleep, and body composition.

Melanotan II is a tanning peptide that stimulates melanin production to darken skin without sun exposure. It also has effects on libido and appetite suppression.

CJC-1295 with DAC is a long-acting growth hormone-releasing peptide that stays active in the body for days rather than hours. It provides a sustained boost to natural growth hormone production.

PT-141 (Bremelanotide) is a sexual health peptide that may boost libido and arousal in both men and women. It works through the brain rather than the blood vessels, making it different from Viagra-type drugs.

IGF-1 LR3 is a modified version of insulin-like growth factor 1, a natural hormone your body produces that plays a key role in muscle growth and cell repair. The modification makes it last much longer in the body (about 20–30 hours vs. 12–15 for regular IGF-1) and keeps more of it active in the bloodstream. It may promote muscle growth by stimulating protein synthesis and activating the cells responsible for building new muscle fibers. Beyond muscle, it may also support the growth and repair of cartilage, bone, and other tissues. At higher doses, IGF-1 LR3 can have insulin-like effects on blood sugar, so monitoring is important. Its extended activity and potency make it one of the strongest growth-promoting peptides studied, but it requires careful dosing.

Tesamorelin is an FDA-approved growth hormone-releasing peptide primarily used to reduce belly fat in people with HIV-related lipodystrophy. It boosts natural growth hormone production.

Sermorelin is a growth hormone-releasing peptide that stimulates your pituitary gland to produce more GH naturally. It's FDA-approved for diagnosing GH deficiency and is popular for anti-aging protocols.