Peptides

Educational information about peptide research compounds. Not for self-use.

Guides in this category

Evidence A
Peptides

Short chains of amino acids that act as signaling molecules in the body, used in research and medicine.

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Evidence B
Peptide Safety

Understanding risks, side effects, quality concerns, and safety considerations for peptide use.

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Evidence B
Peptide Therapy

Medical and wellness use of therapeutic peptides for specific health conditions and optimization goals.

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Evidence B
Peptides for Recovery & Healing

Research peptides studied for tissue repair, injury recovery, and accelerated healing.

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Evidence C
Anti-Aging Peptides

Peptides researched for their potential to slow biological aging, improve skin quality, and extend healthspan.

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Evidence A
Peptides for Weight Loss

From FDA-approved GLP-1 agonists to research compounds studied for fat metabolism and body composition.

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Evidence B
Nootropic Peptides

Peptides researched for cognitive enhancement, neuroprotection, and brain health.

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Evidence A
Peptide Storage & Handling

How temperature, light, moisture, and reconstitution affect peptide stability and potency.

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Evidence A
Peptide Purity & Quality

How to evaluate peptide sources, understand purity testing, and identify quality red flags.

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Evidence A
Semaglutide vs Tirzepatide

Head-to-head comparison of the two leading GLP-1 weight loss medications: efficacy, side effects, cost, and which is right for you.

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Evidence B
BPC-157 vs TB-500

Comparing the two most popular recovery peptides: mechanisms, evidence, and how they differ.

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Evidence B
Survodutide

A dual GLP-1/glucagon receptor agonist in development by Boehringer Ingelheim for obesity and NASH/MASH.

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Evidence B
Orforglipron

The first oral non-peptide GLP-1 receptor agonist, potentially replacing injections for weight loss.

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Evidence B
CagriSema

A combination of semaglutide and cagrilintide targeting both GLP-1 and amylin receptors for enhanced weight loss.

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Evidence B
SS-31 (Elamipretide)

A mitochondria-targeted peptide researched for age-related mitochondrial dysfunction and rare diseases.

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Evidence C
Peptide Bioregulators

Short peptides (2-4 amino acids) theorized to regulate gene expression in specific tissues, developed from Russian research.

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Evidence A
GLP-1s

Semaglutide (Ozempic/Wegovy), tirzepatide (Mounjaro/Zepbound), and related peptides.

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Evidence B
Retatrutide

Triple agonist (GLP-1/GIP/Glucagon) showing 24%+ weight loss in trials.

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Evidence C
AOD-9604

A fragment of growth hormone researched for fat metabolism.

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Evidence C
MOTS-c

A mitochondrial-derived peptide studied for metabolic effects.

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Evidence C
CJC-1295

GHRH analog that stimulates natural GH release. The "signal" half of GH peptide stacks.

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Evidence C
Ipamorelin

The cleanest GHRP. Stimulates GH without spiking hunger, cortisol, or prolactin.

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Evidence B
Sermorelin

A GHRH analog that was previously FDA approved for pediatric GH deficiency.

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Evidence A
Tesamorelin

FDA-approved GHRH analog for HIV lipodystrophy.

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Evidence B
MK-677 (Ibutamoren)

Oral GH secretagogue. No injections needed but comes with hunger and blood sugar sides.

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Evidence C
GHRP-2

Growth hormone releasing peptide-2. Research compound.

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Evidence C
GHRP-6

Growth hormone releasing peptide-6. Known for strong hunger effects.

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Evidence C
Hexarelin

A potent GH secretagogue with cardiac research interest.

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Evidence C
Epitalon

Telomerase activator. The longevity peptide that may slow cellular aging.

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Evidence C
DSIP

Delta Sleep-Inducing Peptide. Researched for sleep and stress.

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Evidence C
BPC-157

Body Protection Compound. The most popular peptide for injury healing and gut repair.

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Evidence C
TB-500

Synthetic Thymosin Beta-4. Systemic healing peptide used in horses and by athletes.

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Evidence B
Thymosin Alpha-1

Immune-modulating peptide approved in some countries.

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Evidence C
KPV

Anti-inflammatory tripeptide derived from alpha-MSH.

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Evidence C
LL-37

Antimicrobial peptide with immune research interest.

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Evidence B
GHK-Cu

Copper peptide for skin, hair, and healing. The most studied cosmetic peptide.

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Evidence B
Matrixyl (Palmitoyl Pentapeptide-4)

Cosmetic peptide used in anti-aging skincare.

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Evidence B
Argireline (Acetyl Hexapeptide-8)

Cosmetic peptide marketed as "Botox in a bottle."

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Evidence A
PT-141 (Bremelanotide)

FDA-approved medication for female hypoactive sexual desire disorder.

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Evidence C
Kisspeptin

Hormone regulating reproductive function. Research compound.

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Evidence C
Melanotan II

Tanning peptide with libido effects. Popular but carries real risks.

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Evidence B
Semax

Russian nootropic peptide. BDNF booster for focus, memory, and neuroprotection.

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Evidence B
Selank

Russian anxiolytic peptide. Reduces anxiety without sedation. Enhances GABA.

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Evidence C
Cerebrolysin

Porcine brain-derived peptide mixture used for neurological conditions.

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Evidence C
Dihexa

Highly experimental neurotrophic peptide derivative.

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Evidence C
Humanin

Mitochondrial-derived peptide studied for neuroprotection.

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Evidence C
Thymalin

Thymic peptide extract studied for immune and longevity effects.

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Evidence C
Pinealon

Synthetic tripeptide targeting brain function. Bioregulator.

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Evidence C
FOXO4-DRI

Experimental senolytic peptide. Highly experimental.

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Evidence C
Follistatin-344

Myostatin inhibitor. Extreme use only. Significant risks.

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