Eagle LogoPEPTIDE INITIATIVE

Peptide Database

Goals
Fat LossMuscle BuildingInjury HealingAnti-AgingCognitive EnhancementSleep OptimizationImmune SupportGut HealingSkin RejuvenationSexual Health
Peptides
Abarelix
Hormone Support
Acetyl Hexapeptide-3 (Argireline)
Cosmetic
Adipotide
Weight Management
Adrenomedullin
Healing & Recovery
Alexamorelin
Growth Hormone
Angiotensin (1-7)
Healing & Recovery
AOD-9604
Weight Management
Apelin-13
Healing & Recovery
ARA-290 (Cibinetide)
Healing & Recovery
Bestatin (Ubenimex)
Immune
BPC-157
Healing & Recovery
Buserelin
Hormone Support
Cagrilintide
Weight Management
Capromorelin
Growth Hormone
Cartalax
Anti-Aging
Cathelicidin (hCAP-18 / Synthetic Derivatives)
Immune
Cerebrolysin
Cognitive
Cerluten
Cognitive
Cetrorelix
Hormone Support
Chonluten
Immune
CJC-1295 (No DAC)
Growth Hormone
CJC-1295 with DAC
Growth Hormone
Copper Tripeptide-1 (GHK-Cu)
Cosmetic
Cortexin
Cognitive
Crystagen
Immune
Daptomycin
Immune
Defensin (HBD-2)
Immune
Defensin (HBD-3)
Immune
Degarelix
Hormone Support
Dihexa
Cognitive
DSIP (Delta Sleep-Inducing Peptide)
Sleep & Recovery
Dulaglutide
Weight Management
Enalapril
Healing & Recovery
Epithalon
Anti-Aging
Exenatide
Weight Management
Fertirelin
Hormone Support
Ganirelix
Hormone Support
GHK-Cu
Cosmetic
GHRH (1-29)
Growth Hormone
GHRP-2
Growth Hormone
GHRP-6 (Growth Hormone Releasing Peptide-6)
Growth Hormone
Gonadorelin (GnRH)
Hormone Support
Gramicidin
Immune
Hexarelin
Growth Hormone
Human Chorionic Gonadotropin (HCG)
Hormone Support
Human Growth Hormone (HGH)
Growth Hormone
IGF-1 LR3
Growth Hormone
Immunoxel (Dzherelo)
Immune
Imunofan
Immune
Intermedin (Adrenomedullin-2)
Healing & Recovery
Ipamorelin
Growth Hormone
Kisspeptin-10
Sexual Health
KPV (Alpha-MSH Fragment)
Healing & Recovery
Lactoferricin B
Immune
Larazotide
Healing & Recovery
Lentinan
Immune
Leuphasyl
Cosmetic
Leuphasyl
Cosmetic
Leuprolide
Hormone Support
Liraglutide
Weight Management
Livagen
Anti-Aging
Lixisenatide
Weight Management
LL-37
Immune
Macimorelin
Growth Hormone
Magainin-2
Immune
Mazdutide
Weight Management
Melanotan-2
Cosmetic
MK-677 (Ibutamoren)
Growth Hormone
MOTS-c
Metabolic
Myristoyl Pentapeptide-17
Cosmetic
N-Acetyl Selank
Cognitive
N-Acetyl Semax Amidate
Cognitive
NAD+
Mitochondrial
Nafarelin
Hormone Support
Natriuretic Peptide (ANP)
Healing & Recovery
Nesiritide (BNP)
Healing & Recovery
Nisin
Immune
Noopept (Omberacetam)
Cognitive
Orforglipron
Weight Management
Ovagen
Anti-Aging
Oxytocin Acetate
Hormone Support
P21 (P021)
Cognitive
PACAP-38
Healing & Recovery
Palmitoyl Oligopeptide
Cosmetic
Palmitoyl Pentapeptide-4 (Matrixyl)
Cosmetic
Palmitoyl Tetrapeptide-7
Cosmetic
Palmitoyl Tripeptide-1
Cosmetic
Pancragen
Metabolic
PEG-MGF
Healing & Recovery
Pemvidutide
Weight Management
Pentadecapeptide (BPC Analog)
Healing & Recovery
Pidotimod
Immune
Pinealon
Cognitive
PNC-27
Immune
Polymyxin B
Immune
Pralmorelin (GHRP-2)
Growth Hormone
Pramlintide
Weight Management
Prostamax
Hormone Support
PT-141 (Bremelanotide)
Sexual Health
Relaxin-2 (Serelaxin)
Healing & Recovery
Retatrutide
Weight Management
Selank
Cognitive
Semaglutide
Weight Management
Semax
Cognitive
Sermorelin
Growth Hormone
Setmelanotide
Weight Management
SLU-PP-332
Metabolic
SM-130686
Growth Hormone
Snap-8
Cosmetic
SS-31 (Elamipretide)
Mitochondrial
Substance P Antagonists
Healing & Recovery
Survodutide
Weight Management
SYN-AKE
Cosmetic
Tabimorelin
Growth Hormone
TB-500
Healing & Recovery
Tesamorelin
Growth Hormone
Testagen
Hormone Support
Thymalin
Immune
Thymopentin (TP-5)
Immune
Thymopoietin
Immune
Thymosin Alpha-1
Immune
Thymosin Beta-4
Healing & Recovery
Thymulin (FTS)
Immune
Thymulin Analog (PAT)
Healing & Recovery
Tirzepatide
Weight Management
Tripeptide-29
Cosmetic
Triptorelin
Hormone Support
Ularitide
Healing & Recovery
Urocortin
Healing & Recovery
Ventfort
Anti-Aging
Vesilute
Hormone Support
Vilon
Immune
VIP (Vasoactive Intestinal Peptide)
Healing & Recovery
Xenin-25
Metabolic
Ziconotide (Prialt)
Healing & Recovery
Total Peptides: 135
Back to Home

Peptide Comparison

Palmitoyl Pentapeptide-4 (Matrixyl)vsPalmitoyl Oligopeptide

Collagen-boosting signal peptide clinically proven to reduce wrinkles and fine lines in photoaged skin.

Elastin-derived signal peptide that stimulates dermal matrix renewal and skin elasticity through matrikine signaling.

CosmeticCosmetic

At a Glance

Quick
comparison

Dose Range

Palmitoyl Pentapeptide-4 (Matrixyl)

3 ppm–100 ppm mg

Palmitoyl Oligopeptide

0.003%–3% %

Frequency

Palmitoyl Pentapeptide-4 (Matrixyl)

Once daily

Palmitoyl Oligopeptide

Once daily

Administration

Palmitoyl Pentapeptide-4 (Matrixyl)

Topical

Palmitoyl Oligopeptide

Topical

Cycle Length

Palmitoyl Pentapeptide-4 (Matrixyl)

Ongoing/indefinite

Palmitoyl Oligopeptide

Ongoing/indefinite

Onset Speed

Palmitoyl Pentapeptide-4 (Matrixyl)

Moderate (1-2 weeks)

Palmitoyl Oligopeptide

Moderate (1-2 weeks)

Evidence Level

Palmitoyl Pentapeptide-4 (Matrixyl)

Limited human trials

Palmitoyl Oligopeptide

Limited human trials

Efficacy

Benefit
ratings

Palmitoyl Pentapeptide-4 (Matrixyl)
Palmitoyl Oligopeptide

Anti-Wrinkle

Palmitoyl Pentapeptide-4 (Matrixyl)82%
Palmitoyl Oligopeptide0%

Collagen Production

Palmitoyl Pentapeptide-4 (Matrixyl)88%
Palmitoyl Oligopeptide0%

Skin Rejuvenation

Palmitoyl Pentapeptide-4 (Matrixyl)80%
Palmitoyl Oligopeptide0%

Collagen Stimulation

Palmitoyl Pentapeptide-4 (Matrixyl)0%
Palmitoyl Oligopeptide82%

Skin Elasticity

Palmitoyl Pentapeptide-4 (Matrixyl)0%
Palmitoyl Oligopeptide80%

Skin Hydration

Palmitoyl Pentapeptide-4 (Matrixyl)0%
Palmitoyl Oligopeptide78%

Technical Data

Compound
specifications

Palmitoyl Pentapeptide-4 (Matrixyl)

Molecular Formula

C39H75N7O10

Molecular Weight

802.1 Da

Half-Life

Approximately 20-30 minutes in skin (rapidly degraded by aminopeptidases; palmitoylation improves stability vs unmodified KTTKS)

Bioavailability

Topical penetration through stratum corneum to dermis; detected at 4.2 µg/cm² in SC, 2.8 µg/cm² in epidermis, 0.3 µg/cm² in dermis

CAS Number

214047-00-4

Palmitoyl Oligopeptide

Molecular Formula

C36H63N5O7 (hexapeptide-12 variant)

Molecular Weight

694.9 Da (approximate for palmitoylated hexapeptide)

Half-Life

Topical application; degradation rate dependent on formulation pH and temperature

Bioavailability

Enhanced dermal penetration via palmitate conjugation; self-assembles with endogenous skin proteins

CAS Number

171263-26-6

Applications

Best
suited for

Palmitoyl Pentapeptide-4 (Matrixyl)

Individuals seeking non-invasive anti-wrinkle treatment

Palmitoyl Pentapeptide-4 (Matrixyl) is particularly well-suited for individuals focused on individuals seeking non-invasive anti-wrinkle treatment. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

Those with photoaged skin showing fine lines and loss of firmness

Palmitoyl Pentapeptide-4 (Matrixyl) is particularly well-suited for individuals focused on those with photoaged skin showing fine lines and loss of firmness. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

People looking to boost collagen production through topical skincare

Palmitoyl Pentapeptide-4 (Matrixyl) is particularly well-suited for individuals focused on people looking to boost collagen production through topical skincare. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

Sensitive skin types seeking well-tolerated anti-aging actives

Palmitoyl Pentapeptide-4 (Matrixyl) is particularly well-suited for individuals focused on sensitive skin types seeking well-tolerated anti-aging actives. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

Palmitoyl Oligopeptide

Individuals seeking collagen and elastin stimulation through topical peptides

Palmitoyl Oligopeptide is particularly well-suited for individuals focused on individuals seeking collagen and elastin stimulation through topical peptides. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

Those with age-related loss of skin firmness and elasticity

Palmitoyl Oligopeptide is particularly well-suited for individuals focused on those with age-related loss of skin firmness and elasticity. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

People looking for gentle anti-aging actives suitable for sensitive skin

Palmitoyl Oligopeptide is particularly well-suited for individuals focused on people looking for gentle anti-aging actives suitable for sensitive skin. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

Users wanting to complement retinoid or vitamin C regimens with peptide support

Palmitoyl Oligopeptide is particularly well-suited for individuals focused on users wanting to complement retinoid or vitamin c regimens with peptide support. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

Safety Profile

Side
effects

Palmitoyl Pentapeptide-4 (Matrixyl)

Common

  • Mild Tingling
  • Transient Redness
  • Dryness with Exfoliants
  • Mild Irritation

Uncommon

  • Contact Dermatitis

Serious

  • Excessive Collagen Synthesis and Scar Risk

Palmitoyl Oligopeptide

Common

  • Transient Dryness
  • Mild Tingling
  • Product Interaction Sensitivity
  • Minimal Erythema

Uncommon

  • Contact Dermatitis

Serious

  • Allergic Reaction
  • Comedogenic Potential from Palmitic Acid

Research Status

Safety
& evidence

Palmitoyl Pentapeptide-4 (Matrixyl)

Evidence Level

Limited human trials

FDA Status

Research compound

Safety Overview

Palmitoyl pentapeptide-4 (Matrixyl) demonstrates excellent dermatological safety with GRAS/safe-for-cosmetic status; extensively used in anti-aging skincare for 20+ years with no serious adverse events. Skin irritation potential is minimal at recommended 2-3% concentrations (irritation index <0.5). No systemic absorption via intact skin; confined to epidermis/dermis per Franz diffusion cell studies. Stability in formulations verified through HPLC analysis.

Contraindications

  • xKnown hypersensitivity to palmitoyl pentapeptide-4 or formulation excipients
  • xActive skin infections at the application site
  • xSeverely compromised skin barrier with open wounds
  • xNo known systemic contraindications at cosmetic concentrations

Palmitoyl Oligopeptide

Evidence Level

Limited human trials

FDA Status

Research compound

Safety Overview

Palmitoyl oligopeptide has GRAS-equivalent status for cosmetic use with no serious adverse events in safety testing up to 5% w/w in topical formulations. Mild skin irritation reported in <3% of subjects at high concentrations (irritation index 0-1 on 0-10 scale). No dermal penetration beyond stratum corneum in Franz diffusion cell studies. Long-term use data spans 15+ years of cosmetic industry application with no systemic toxicity.

Contraindications

  • xKnown allergy or hypersensitivity to palmitoylated peptides or formulation excipients
  • xActive skin infections or open wounds at the application site
  • xConcurrent use with strong oxidizing agents that may degrade peptide structure
  • xSevere dermatitis or eczema flares at intended application areas

Decision Guide

Which is
right for you?

Choose Palmitoyl Pentapeptide-4 (Matrixyl) if...

  • Individuals seeking non-invasive anti-wrinkle treatment
  • Those with photoaged skin showing fine lines and loss of firmness
  • People looking to boost collagen production through topical skincare
  • Sensitive skin types seeking well-tolerated anti-aging actives

Choose Palmitoyl Oligopeptide if...

  • Individuals seeking collagen and elastin stimulation through topical peptides
  • Those with age-related loss of skin firmness and elasticity
  • People looking for gentle anti-aging actives suitable for sensitive skin
  • Users wanting to complement retinoid or vitamin C regimens with peptide support
Peptide ProPalmitoyl Pentapeptide-4 (Matrixyl) vs Palmitoyl… | Peptide Initiative