Best peptides for sleep

Melanocortin agonist FDA-approved (Vyleesi) for HSDD; libido enhancement.

• Increases libido
• Acts on CNS, not vascular
• Works in both sexes

Tamoxifen (Nolvadex) is a nonsteroidal SERM and the primary approved endocrine therapy for hormone receptor-positive breast cancer. Its use in males during or after testosterone therapy to manage gynecomastia or restore the hypothalamic-pituitary axis is off-label.

• Studied off-label in males for management of gynecomastia and post-cycle restoration of gonadotropin axis (prescriber-directed)

Testosterone cypionate is a long-acting oil-soluble ester of the endogenous androgen testosterone, administered by intramuscular or subcutaneous injection. It is FDA-approved for testosterone replacement therapy in adult males diagnosed with primary or hypogonadotropic hypogonadism.

• Restoration of endogenous androgen levels in adult males diagnosed with hypogonadism per FDA-approved indications

Testosterone enanthate is a long-acting ester of testosterone administered by intramuscular or subcutaneous injection. It is FDA-approved for testosterone replacement therapy in adult males with primary or hypogonadotropic hypogonadism.

• Restoration of endogenous androgen levels in adult males diagnosed with hypogonadism per FDA-approved indications

Testosterone propionate is a short-acting ester of testosterone administered by intramuscular injection. It is an approved androgen ester used for testosterone replacement; its short half-life requires more frequent administration compared to longer esters.

• Restoration of endogenous androgen levels in adult males diagnosed with hypogonadism per approved indications

Testosterone undecanoate (Aveed) is a very long-acting ester of testosterone administered by deep intramuscular injection. FDA-approved for replacement therapy in adult males with primary or hypogonadotropic hypogonadism; the injectable formulation carries a boxed warning for pulmonary oil microembolism (POME) and anaphylaxis.

• Restoration of androgen levels in adult males diagnosed with hypogonadism per FDA-approved indications

Gentle GH releaser that amps muscle growth and fat loss without the harsh sides.

• Improves sleep quality

Oral GH secretagogue that cranks appetite, muscle preservation, and bone density.

• Improves sleep quality

Mimics natural GH pulses to build lean mass and improve sleep/recovery.

• Improves sleep quality

Sleep Inducer.

• Deep sleep

Longevity star; lengthens telomeres to fight aging and support overall vitality.

• Improves sleep patterns

The copper peptide master for skin rejuvenation, hair growth, and rapid tissue repair.

• Boosts collagen/elastin (70%+)
• Accelerates wound healing
• Stimulates hair growth

Nine-amino-acid neuropeptide hormone; FDA-approved as an injectable for obstetric use, and studied off-label as an intranasal agent for social, anxiety, and sexual-health applications with mixed results.

• Research interest in social bonding and anxiety reduction (intranasal, off-label)

A 28-amino-acid signaling peptide with anti-inflammatory and vasodilatory actions; its synthetic form (aviptadil) has been trialed for respiratory failure, and an intranasal form is used off-label in the chronic-inflammatory-response (mold/CIRS) community.

• Anti-inflammatory and immune-modulating signaling
• Upregulates pulmonary surfactant and protects alveolar cells (preclinical, aviptadil)
• Off-label intranasal use reported for chronic inflammatory response and sinopulmonary symptoms (not established)

The recovery king; speeds up tendon, muscle, and gut healing for faster training turnarounds.

• Speeds up tendon healing
• Accelerates muscle recovery
• Promotes gut healing

Investigational orally active angiotensin-IV-derived peptidomimetic studied preclinically as a hepatocyte growth factor (HGF) potentiator with synaptogenic effects. No human data; educational use only.

• Investigational interest in neurodegeneration research (no proven human benefit)

A zinc-dependent thymic nonapeptide (FTS-Zn) that supports T-cell maturation and modulates inflammation; studied mainly in preclinical and mechanistic research.

• Supports T-cell differentiation and thymic immune function (preclinical)
• Anti-inflammatory effects in animal models
• Studied in the thymus-neuroendocrine axis and age-related immune decline

Anti-aging tetrapeptide marketed for thymopoietic skin remodeling and firmness.

• Skin firmness
• Reduces sagging around eyes
• Marketed as 'thymus-mimetic'

Common research-grade salt form of DSIP; same nine-aa sequence with TFA counterion.

• Reported sleep onset improvement

Pineal-gland polypeptide extract; predecessor of Epitalon used in Russian gerontology.

• Melatonin-axis modulation

Senolytic D-retro-inverso peptide that disrupts FOXO4-p53 to selectively kill senescent cells.

• Restored fitness in aged mice

TGF-beta family ligand controversially linked to age-reversal via parabiosis studies.

• Possible muscle/cardiac rejuvenation (debated)
• Neurogenesis (preclinical)

Pre-blended GH-stack vial; one injection, both peptides, popular 5+5 mg ratio.

• Sleep + recovery

Hypothalamic peptide that triggers natural LH surge, a clean alternative to hCG/clomid stim.

• Natural LH/FSH stimulation
• Testosterone boost
• Low side-effect profile

Anti-aging hormone; soluble klotho boosts cognition and modulates phosphate/FGF23 axis.

• Cognitive enhancement (preclinical)
• Phosphate homeostasis
• Anti-fibrotic in kidney models

Hypothalamic neuropeptide regulating wakefulness; intranasal investigation for narcolepsy.

• Promotes wakefulness
• Investigated in narcolepsy type 1
• Potential cognitive arousal

First oral non-peptide GLP-1 receptor agonist (Eli Lilly); Phase 3 obesity program.

• No food/water restrictions

Arginate-salt analog of BPC-157 developed for improved injection stability and tissue repair.

• Tendon and ligament healing
• Better stability than BPC-157 acetate
• Anti-inflammatory

Khavinson tripeptide (Lys-Glu-Asp) marketed as a vascular bioregulator.

• Claimed endothelial support
• Studied in atherosclerosis (Russia)