Ingredient or product comparison
Comparison Table: Research-Backed Peptides vs. Marketing Peptides
Palmitoyl Pentapeptide-4 (Matrixyl) ~578 Upregulates procollagen I/III synthesis via TGF-beta signalling 117% increase in procollagen synthesis (JCD 2023) 3–8% High-purity signal peptides like those used in Cartalax Peptide research demonstrate similar fibrobl
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- Palmitoyl Pentapeptide-4 (Matrixyl)
- ~578
- Upregulates procollagen I/III synthesis via TGF-beta signalling
- 117% increase in procollagen synthesis (JCD 2023)
- 3–8%
- High-purity signal peptides like those used in Cartalax Peptide research demonstrate similar fibroblast activation mechanisms
- GHK-Cu (Copper Tripeptide-1)
- ~340
- Delivers copper for lysyl oxidase activity; anti-inflammatory
- 18% increase in skin density, 27% wrinkle reduction (CCID 2020)
- 1–3%
- Copper-peptide research parallels methodologies applied to regenerative compounds at Real Peptides
- Acetyl Hexapeptide-8 (Argireline)
- ~888
- Inhibits SNARE complex, reduces muscle contraction
- 17% reduction in crow's feet depth at 10% (Dermatol Surg 2019)
- 5–10%
- Neurotransmitter modulation research overlaps with peptide studies in Cerebrolysin cognitive pathways
- Palmitoyl Tripeptide-38 (Matrixyl synthe'6)
- ~632
- Stimulates synthesis of collagen I, III, IV, fibronectin, hyaluronic acid, laminin-5
- 31% improvement in wrinkle volume (Int J Cosmet Sci 2018)
- 2–5%
- Multi-target matrix synthesis mirrors the pleiotropic effects studied in compounds like Thymalin
- Hexapeptide-11
- ~750
- Claimed to improve barrier function and hydration
- Minimal peer-reviewed data outside manufacturer studies
- Large molecular weight limits dermal penetration. Serves primarily as a humectant rather than signal peptide