PeptideSciences101NH2COOH
PeptideSciences101

Research-stage peptides

Research-stage profiles summarize available evidence and are not treatment recommendations. These compounds are not FDA-approved for human use; some are prescription-only or compounding-only.

These 92 peptides are studied primarily in laboratory, preclinical, or early clinical settings, or are handled through compounding rather than FDA approval. Evidence quality varies widely — each profile carries an evidence grade and a regulatory status so you can tell validated clinical evidence from preliminary research. For approved drugs, see the FDA-approved list.

A

B

C

D

  • DHEA PeptideGrade CResearch-stage

    Hormone precursor support

  • DihexaGrade CNot FDA-approved

    Potent cognitive enhancer

  • DSIPGrade CNot FDA-approved

    Delta sleep-inducing peptide

E

F

G

  • GHK-CuGrade CNot FDA-approved

    Wound healing, skin regeneration

  • GhrelinomimeticGrade CResearch-stage

    Appetite and healing support

  • GHRP-4Grade CResearch-stage

    Fourth generation GHRP

  • GLOW StackGrade CResearch-stage

    Trending injectable research blend of GHK-Cu, BPC-157 and TB-500, marketed for skin rejuvenation and tissue recovery. Not FDA-approved; sold as a research chemical.

  • Glycine PeptideGrade CResearch-stage

    Sleep quality amino peptide

  • GonadorelinGrade CResearch-stage

    GnRH for fertility

  • GroprinosinGrade CResearch-stage

    Antiviral immune booster

H

I

  • ImunofanGrade CResearch-stage

    Russian immune peptide

  • IpamorelinGrade CResearch-stage

    GH secretagogue, anti-aging

K

  • KisspeptinGrade CResearch-stage

    Reproductive hormone regulator

  • KPVGrade CNot FDA-approved

    Anti-inflammatory immune peptide

L

  • LarazotideGrade CResearch-stage

    Gut permeability regulator

  • LeptinGrade CResearch-stage

    Satiety hormone

  • LL-37Grade CNot FDA-approved

    Antimicrobial defense peptide

M

N

O

  • OvagenGrade XResearch-stage

    Digestive system bioregulator

  • OxytocinGrade CResearch-stage

    Bonding and relaxation hormone

P

R

  • RetatrutideGrade BInvestigational

    Investigational triple agonist (GIP/GLP-1/glucagon). TRIUMPH-1 Phase 3 (May 2026): 28.3% body weight loss at 80 weeks. FDA submission anticipated Q3–Q4 2026.

  • RG3 (Rhodiola)Grade CResearch-stage

    Adaptogenic peptide

S

  • SelankGrade CResearch-stage

    Anxiety reduction, focus

  • Selank-AmidateGrade CResearch-stage

    Extended release Selank

  • SemaxGrade CNot FDA-approved

    Cognitive enhancement, focus, memory

  • Semax Low DoseGrade CNot FDA-approved

    Evening cognitive calming

  • Semax-AmidateGrade CNot FDA-approved

    Extended release Semax

  • SermorelinGrade CResearch-stage

    GHRH for natural GH release

  • Snap-8Grade CResearch-stage

    Enhanced Argireline

  • SplenopentinGrade CResearch-stage

    Spleen-derived immune peptide

  • SS-31 (Elamipretide)Grade CResearch-stage

    Mitochondrial optimization

  • Syn-CollGrade CResearch-stage

    Collagen synthesis peptide

T

  • TB-500Grade CNot FDA-approved

    Tissue repair, flexibility, inflammation

  • TB4-FRAGGrade CResearch-stage

    TB-500 fragment

  • TeriparatideGrade CResearch-stage

    FDA-approved bone builder

  • ThymalinGrade CResearch-stage

    Thymus restoration peptide

  • Thymosin Alpha-1Grade CResearch-stage

    Immune system support

  • Thymosin Beta-4Grade CNot FDA-approved

    Comprehensive tissue pain relief

  • ThyreogenGrade CResearch-stage

    Thyroid function support

U

  • Urolithin AGrade CResearch-stage

    Mitochondrial health compound

V

  • VilonGrade CResearch-stage

    Simple immune dipeptide

  • VladonixGrade CResearch-stage

    Thymus bioregulator complex

Y

  • YK-11Grade CResearch-stage

    Myostatin inhibitor