Compare Peptides
Select any two compounds for a side-by-side comparison of mechanism, uses, risks, and FDA regulatory status.
Popular comparisons
A synthetic peptide that inhibits neurotransmitter release at the neuromuscular junction, reducing muscle contraction and the appearance of expression lines. Often called 'topical Botox' in marketing, though the mechanism and potency differ significantly. One of the most commercially successful cosmetic peptides.
A lipopeptide used in topical skincare that stimulates collagen and fibronectin production in the skin. One of the most studied cosmetic peptides, marketed as Matrixyl. Works by mimicking a collagen fragment that signals fibroblasts to produce new collagen matrix. Widely used in anti-aging serums and creams.
Mimics the N-terminal end of SNAP-25, a protein essential for SNARE complex formation and neurotransmitter vesicle fusion. By competing with native SNAP-25, it partially inhibits acetylcholine release at the neuromuscular junction, reducing the intensity of muscle contractions that cause expression wrinkles.
The KTTKS sequence mimics a collagen breakdown fragment (matrikine) that signals fibroblasts to initiate new collagen synthesis. The palmitoyl group enhances skin penetration by increasing lipophilicity. Stimulates production of collagen types I, III, and IV, as well as fibronectin and glycosaminoglycans.
- Forehead and crow's feet wrinkle reduction
- Expression line softening
- Preventive anti-aging skincare
- Botox-alternative topical treatment
- Periorbital wrinkle treatment
- Anti-wrinkle topical treatment
- Collagen stimulation in aging skin
- Skin firmness and elasticity improvement
- Post-procedure skin recovery
- Cosmeceutical formulations
- Generally well-tolerated topically
- Much weaker effect than injectable Botox
- Skin irritation possible at high concentrations
- Efficacy debated — some studies show modest results
- Not effective via oral or injectable routes
- Generally well-tolerated topically
- Mild skin irritation in sensitive individuals
- Efficacy depends on formulation and concentration
- Not effective via injection — topical only
- Results require consistent use over weeks
Not regulated as a drug by the FDA. Classified as a cosmetic ingredient. Available over-the-counter in skincare products. No prescription required. The Ordinary and other brands sell 10% Argireline solutions.
Not regulated as a drug by the FDA. Classified as a cosmetic ingredient. No prescription required. Available in over-the-counter skincare products. No FDA review process for cosmetic peptides.
This comparison is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting any peptide therapy.