Sexual Health Peptides
10From melanocortin receptor agonists like PT-141 to gonadotropin-releasing hormone analogs, these peptides are researched for libido, erectile function, hormonal balance, and reproductive health in both men and women.
Alprostadil
A medication that treats erectile dysfunction by relaxing the blood vessels in the penis, allowing blood to flow in and create an erection. Unlike pills that require arousal to work, this works directly at the injection or application site — you don't need to be in the mood. Available as an injection into the penis or as a small pellet inserted into the urethra.
Enclomiphene
A medication that boosts natural testosterone production by blocking estrogen's feedback signal in the brain. Used in men's health clinics as an alternative to testosterone shots that preserves fertility and testicular function. Unlike mixed clomiphene (Clomid), enclomiphene lacks the estrogen-like component (zuclomiphene) that causes many of clomiphene's side effects.
Gonadorelin
A lab-made copy of the hormone your brain naturally releases to tell your body to make reproductive hormones. When given in short pulses (not continuously), it signals the pituitary gland to release hormones that keep the testes working. Used for fertility treatment, diagnosing hormone problems, and keeping testicular function and sperm production going during testosterone therapy.
HCG
A hormone your body makes during pregnancy that acts like the hormone that tells the testes to produce testosterone and sperm. Used to treat low testosterone and fertility issues. Commonly used by men on testosterone therapy to keep their testes working and sperm production going, and by bodybuilders after steroid cycles to help their hormones recover.
HMG
A fertility medication made from hormones extracted from postmenopausal women's urine. It contains both the hormones that stimulate egg development in women and sperm production in men. Used for fertility treatment in both sexes. Some bodybuilders also use it after steroid cycles to help their natural hormone production bounce back.
KissPeptin-10
A short form of kisspeptin, the hormone that sits at the top of your reproductive hormone system. It directly tells the brain to release the signals that kick off the whole chain — FSH, LH, and ultimately testosterone or estrogen. Researchers are studying it as a possible alternative to other fertility hormones, with potentially fewer issues of the body 'getting used to' it.
Kisspeptin-54
The full-length 54-amino-acid form of kisspeptin — the master regulator of reproductive hormones. More potent and longer-acting than Kisspeptin-10. Being studied for fertility treatment, low testosterone diagnosis, and reproductive disorders. May offer a more natural approach to stimulating reproductive hormone production than GnRH or HCG.
Melanotan II
A synthetic peptide that activates multiple hormone receptors at once. It produces skin tanning, increased sexual arousal, and reduced appetite simultaneously because it affects several receptor types. One of the most widely used peptides globally, primarily for cosmetic tanning and sexual enhancement, despite significant safety concerns.
Oxytocin
Often called the 'love hormone' — it plays a big role in bonding, trust, and feeling close to others. Your body makes it in the brain. It's also what makes the uterus contract during childbirth and triggers milk release when breastfeeding. The nasal spray form is increasingly used to support social connection and mood.
PT-141
A peptide that boosts sexual desire by acting on the brain's arousal pathways. Unlike pills like Viagra that work on blood flow, this targets the desire and arousal signals in your brain. It's used to help premenopausal women who have low sexual desire.