Peptide Comparison
Palmitoyl Tripeptide-1vsPalmitoyl Tetrapeptide-7
Collagen-stimulating matrikine peptide and key component of Matrixyl 3000 for comprehensive anti-aging skin renewal.
Anti-inflammatory matrikine peptide that reduces IL-6-driven inflammaging for calmer, more youthful skin.
At a Glance
Quick
comparison
Dose Range
Palmitoyl Tripeptide-1
0.5%–3% %
Palmitoyl Tetrapeptide-7
0.5%–8% %
Frequency
Palmitoyl Tripeptide-1
Once daily
Palmitoyl Tetrapeptide-7
Once daily
Administration
Palmitoyl Tripeptide-1
Topical
Palmitoyl Tetrapeptide-7
Topical
Cycle Length
Palmitoyl Tripeptide-1
Ongoing/indefinite
Palmitoyl Tetrapeptide-7
Ongoing/indefinite
Onset Speed
Palmitoyl Tripeptide-1
Moderate (1-2 weeks)
Palmitoyl Tetrapeptide-7
Moderate (1-2 weeks)
Evidence Level
Palmitoyl Tripeptide-1
Limited human trials
Palmitoyl Tetrapeptide-7
Limited human trials
Efficacy
Benefit
ratings
Collagen Production
Anti-Aging
Skin Firmness
Anti-Inflammatory
Skin Barrier Support
Technical Data
Compound
specifications
Palmitoyl Tripeptide-1
Molecular Formula
C30H54N6O5
Molecular Weight
578.8 Da
Half-Life
Limited data; peptide is susceptible to enzymatic degradation in skin but palmitoylation improves stability compared to unmodified GHK
Bioavailability
Enhanced topical penetration via palmitoyl lipid modification; reaches dermis where fibroblasts reside
CAS Number
147732-56-7
Palmitoyl Tetrapeptide-7
Molecular Formula
C34H62N8O7
Molecular Weight
694.9 Da
Half-Life
Susceptible to enzymatic degradation; palmitoyl anchor reduces proteolytic cleavage rate compared to unmodified peptide
Bioavailability
Enhanced topical penetration via palmitoyl lipid modification enabling membrane interaction and dermal delivery
CAS Number
221227-05-0
Applications
Best
suited for
Palmitoyl Tripeptide-1
Individuals seeking comprehensive collagen stimulation through topical skincare
Palmitoyl Tripeptide-1 is particularly well-suited for individuals focused on individuals seeking comprehensive collagen stimulation through topical skincare. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Those with aging skin showing loss of firmness, elasticity, and density
Palmitoyl Tripeptide-1 is particularly well-suited for individuals focused on those with aging skin showing loss of firmness, elasticity, and density. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
People looking for non-invasive alternatives to injectable collagen treatments
Palmitoyl Tripeptide-1 is particularly well-suited for individuals focused on people looking for non-invasive alternatives to injectable collagen treatments. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Those seeking GHK-based skin benefits without copper peptide formulation complexity
Palmitoyl Tripeptide-1 is particularly well-suited for individuals focused on those seeking ghk-based skin benefits without copper peptide formulation complexity. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Palmitoyl Tetrapeptide-7
Individuals with aging skin showing signs of chronic low-grade inflammation
Palmitoyl Tetrapeptide-7 is particularly well-suited for individuals focused on individuals with aging skin showing signs of chronic low-grade inflammation. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Those seeking to reduce UV-damage-related skin aging (photoaging)
Palmitoyl Tetrapeptide-7 is particularly well-suited for individuals focused on those seeking to reduce uv-damage-related skin aging (photoaging). Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
People looking for synergistic peptide therapy in Matrixyl 3000 products
Palmitoyl Tetrapeptide-7 is particularly well-suited for individuals focused on people looking for synergistic peptide therapy in matrixyl 3000 products. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Individuals with sensitive or reactive skin benefiting from anti-inflammatory peptides
Palmitoyl Tetrapeptide-7 is particularly well-suited for individuals focused on individuals with sensitive or reactive skin benefiting from anti-inflammatory peptides. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Safety Profile
Side
effects
Palmitoyl Tripeptide-1
Common
- Temporary Skin Irritation
- Mild Redness
- Dryness
- Mild Peeling
Uncommon
- Contact Dermatitis
Serious
- Skin Sensitization from Fragmented Peptide
Palmitoyl Tetrapeptide-7
Common
- Mild Redness
- Slight Tingling
- Mild Irritation with Other Actives
- Dryness
Uncommon
- Allergic Contact Dermatitis
Serious
- Paradoxical Inflammatory Response
Research Status
Safety
& evidence
Palmitoyl Tripeptide-1
Evidence Level
Limited human trials
FDA Status
Research compound
Safety Overview
Palmitoyl tripeptide-1 demonstrates excellent cosmetic safety with GRAS/safe-for-use designation in topical formulations at concentrations up to 2%. No serious adverse events in 20+ years of cosmetic industry use; mild erythema (<1% of subjects) at high concentrations (>5%). Dermal penetration limited to stratum corneum; no systemic absorption in vitro. Compatible with common skincare ingredients.
Contraindications
- xKnown hypersensitivity to palmitoyl tripeptide-1 or related peptide ingredients
- xActive skin infections or severely compromised skin barrier at application site
- xOpen wounds or actively inflamed dermatitis in treatment area
- xNo known systemic contraindications for topical cosmetic use
Palmitoyl Tetrapeptide-7
Evidence Level
Limited human trials
FDA Status
Research compound
Safety Overview
Palmitoyl tetrapeptide-7 (Eyeliss) shows excellent safety for periocular use with minimal irritation potential (Draize score <0.5 at 2% concentration). No serious adverse events in cosmetic formulations used for 15+ years. Eye irritation testing per OECD 404 confirms safety; no systemic toxicity in repeat-dose oral studies. Mild local effects limited to topical application site with no dermal penetration.
Contraindications
- xKnown hypersensitivity to palmitoyl tetrapeptide-7 or formulation excipients
- xActive skin infections at the application site
- xSeverely compromised skin barrier with active inflammation requiring medical intervention
- xNo known systemic contraindications at cosmetic concentrations
Decision Guide
Which is
right for you?
Choose Palmitoyl Tripeptide-1 if...
- Individuals seeking comprehensive collagen stimulation through topical skincare
- Those with aging skin showing loss of firmness, elasticity, and density
- People looking for non-invasive alternatives to injectable collagen treatments
- Those seeking GHK-based skin benefits without copper peptide formulation complexity
Choose Palmitoyl Tetrapeptide-7 if...
- Individuals with aging skin showing signs of chronic low-grade inflammation
- Those seeking to reduce UV-damage-related skin aging (photoaging)
- People looking for synergistic peptide therapy in Matrixyl 3000 products
- Individuals with sensitive or reactive skin benefiting from anti-inflammatory peptides