Sexual Health

Best Peptides for Erectile Dysfunction: Evidence-Based Guide

Guide to peptides for erectile dysfunction — PT-141, BPC-157, and sermorelin with evidence, dosing, and protocols.

Affects approximately 30 million men in the United States; prevalence increases with age

Understanding Erectile Dysfunction

Erectile dysfunction (ED) involves the inability to achieve or maintain an erection sufficient for satisfactory sexual activity. It has vascular (endothelial dysfunction), neurological, hormonal (low testosterone), and psychological components. Standard treatments include PDE5 inhibitors (sildenafil, tadalafil), testosterone replacement, and vacuum erection devices.

Common Symptoms

Difficulty achieving erection
Difficulty maintaining erection
Reduced sexual desire
Anxiety about sexual performance

Conventional Treatments

PDE5 inhibitors (sildenafil/Viagra, tadalafil/Cialis)Testosterone replacement therapy (if hypogonadal)Vacuum erection devicesPenile injections (alprostadil)Penile implants (severe cases)Psychotherapy (psychological ED)

How Peptides May Help

PT-141 (bremelanotide) is FDA-approved for hypoactive sexual desire disorder in women and works centrally to increase sexual desire and arousal in men. BPC-157 may support endothelial function and penile vascular health. Sermorelin/ipamorelin may help by addressing GH axis decline, which is associated with reduced sexual function.

Top Peptides for Erectile Dysfunction

Strong — FDA-approved for HSDD in women; clinical data in men

Mechanism: Central melanocortin receptor agonist; increases sexual desire and arousal centrally

Typical dose: 0.5-2mg SubQ, 1-4 hours before activity

Preclinical

Mechanism: Endothelial support, vascular health, nitric oxide modulation

Typical dose: 250-500mcg SubQ daily

Suggested Starting Protocol

PT-141 0.5-1mg SubQ, 1-2 hours before sexual activity. Start at 0.5mg to assess nausea tolerance. Can be combined with PDE5 inhibitors (complementary mechanisms). BPC-157 250mcg daily as a vascular support adjunct.

Frequently Asked Questions

Can PT-141 be combined with Viagra?

PT-141 works centrally (desire/arousal) while PDE5 inhibitors work peripherally (blood flow). They are complementary and can be combined, but consult a physician — both can affect blood pressure.

How does PT-141 differ from Viagra for ED?

Viagra increases blood flow to the penis (peripheral mechanism). PT-141 increases sexual desire and arousal in the brain (central mechanism). PT-141 is more effective for desire/libido issues; Viagra is more effective for vascular/physical ED.

Is PT-141 safe for men?

PT-141 is FDA-approved for women with HSDD. In men, clinical trial data shows it is generally well-tolerated. Main concerns are nausea and transient blood pressure elevation. Avoid if you have cardiovascular disease.

Related Conditions

Find the right peptide for your biology

Take our 5-minute quiz to get a personalized peptide recommendation based on your specific goals and health profile.