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Peptide Database

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Peptides
5-Amino-1MQ
Weight Management
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
CagriSema
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
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
FOXO4-DRI
Anti-Aging
Ganirelix
Hormone Support
GHK-Cu (Copper Peptide)
Cosmetic
GHRH (1-29)
Growth Hormone
GHRP-2
Growth Hormone
GHRP-6 (Growth Hormone Releasing Peptide-6)
Growth Hormone
Glutathione
Anti-Aging
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
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: 137
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Palmitoyl Oligopeptide

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

Written by Michael Carroll — Owner, Director of Research · Reviewed by the Peptide Initiative Research Team · Editorial standards

CosmeticLimited human trialsResearch compound

Suggested dose

0.002 % – 10 ppm

Once dailyCycle: Ongoing/indefiniteOnset: Moderate (1-2 weeks)
Topical application; degradation rate dependent on formulation pH and temperatureHalf-life
Enhanced dermal penetration via palmitate conjugation; self-assembles with endogenous skin proteinsBioavailability
694.9 DaMolecular weight(approximate for palmitoylated hexapeptide)
Limited human trialsEvidence level

Compound profile

Scientific & efficacy data

Cosmetic

Peptide profile

Collagen Stimulation8.2
Skin Elasticity8.0
Skin Hydration7.8

Limited human trials

Palmitoyl Oligopeptide

Under 10 ppm (<0.001%) in finished product · Once daily

Molecular formula

C36H63N5O7 (hexapeptide-12 variant)

Mol. weight
694.9 Da (approximate for palmitoylated hexapeptide)
CAS number
171263-26-6
PubChem
Not individually indexed (component of cosmetic formulations)
Developed · 2003
Lipotec S.A. research team
Lipotec S.A. (Lubrizol Corporation)

Amino acid sequence

Pal-VGVAPG (Palmitoyl-Val-Gly-Val-Ala-Pro-Gly) — elastin-derived matrikine sequence

Collagen Stimulation

Acts as a matrikine signal peptide to upregulate collagen type I, III, and IV synthesis in dermal fibroblasts through TGF-β pathway activation.

Skin Elasticity

Enhances elastin production and strengthens the extracellular matrix framework, improving skin resilience and reducing sagging.

Skin Hydration

Stimulates hyaluronic acid synthesis and strengthens the skin barrier to reduce transepidermal water loss and improve moisture retention.

Dosing

How much do I take?

0.002 % – 10 ppm

Ongoing

0.002 % – 10 ppm

Full Palmitoyl Oligopeptide dosing protocol

Covers all 2 documented dose levels · timing · dose-adjustment guidance.

Palmitoyl OligopeptideOnce or twice daily

How much peptide is in your bottle?

Look at the label on the vial. It’s the number next to mg — like "5 mg".

Type a number to continue.
0

Suitability

Is this right for me?

Best for individuals seeking collagen and elastin stimulation through topical peptides & those with age-related loss of skin firmness and elasticity

Best for

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.

Consider alternatives if

Alternative approaches for cosmetic supportConsult your healthcare provider for alternatives to Palmitoyl Oligopeptide based on your specific needs and medical history
Alternative cosmetic peptidesGHK-Cu (Copper Peptide), Argireline (Acetyl Hexapeptide-3), Matrixyl (Palmitoyl Pentapeptide-4)
Non-peptide cosmetic approachesRetinol/Retinoids, Hyaluronic acid serums, Vitamin C serums

Do not use if

Known allergy or hypersensitivity to palmitoylated peptides or formulation excipientsActive skin infections or open wounds at the application siteConcurrent use with strong oxidizing agents that may degrade peptide structureSevere dermatitis or eczema flares at intended application areas

Use with caution if

You are taking other medications—discuss potential interactions with your healthcare providerYou have a history of liver or kidney diseaseYou are elderly or have multiple medical conditionsYou are planning surgery in the near future—inform your surgeon about Palmitoyl Oligopeptide useYou have any chronic health conditions that require regular monitoring

Not sure?

Compare Palmitoyl Oligopeptide with similar peptides to find the best fit for your goals.

Administration

How do I use it?

Topical

Route

Palmitoyl Oligopeptide is administered Topical—no injection required

Best sites

Not applicable—this is not an injectable formulation

Covers reconstitution · step-by-step technique · storage · a sample daily schedule.

Safety

Is it safe?

4 common side effects · 2 serious

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.

Cosmetic safety database (CosIng) documentation confirms mechanism through collagen synthesis stimulation (procollagen type I ELISA) and MMP inhibition preventing collagen breakdown. In vitro elasticity measurements using mechanical testing show 20-30% elasticity improvements over 8 weeks.

Dermatological testing per ISO 10993 confirms biocompatibility; histopathology shows no irritation at concentrations up to 3%.

Common side effects · experienced by some users

  • Transient Dryness

    Rare mild dryness during initial use, typically resolving within the first week of application.

    Management: Apply over a hydrating serum or follow with a moisturizer. Reduce application frequency if persistent.

  • Mild Tingling

    Slight tingling sensation upon first application in some sensitive individuals, generally benign and transient.

    Management: Normal sensory response. If uncomfortable, dilute product or reduce concentration.

  • Product Interaction Sensitivity

    Potential for mild irritation when layered with strong active acids or retinoids in the same application.

    Management: Separate acid-based products to different times of day. Apply peptide serum first, then other actives after absorption.

  • Minimal Erythema

    Very rare mild redness at application site in highly reactive skin types.

    Management: Reduce frequency to once daily. Patch test on inner arm before facial application.

Less common

Contact Dermatitis

These typically resolve with continued use or dose adjustment.

Stop and seek help if

  • Severe or worsening side effects that don't improve with dose adjustment or supportive care
  • Signs of an allergic reaction—rash, hives, swelling, or difficulty breathing
  • Your healthcare provider recommends discontinuation based on your clinical response
  • Development of any new medical condition that may be contraindicated with Palmitoyl Oligopeptide
  • Pregnancy or planning to become pregnant (unless specifically approved for use during pregnancy)
  • Abnormal lab results or clinical markers that suggest adverse effects

Palmitoyl Oligopeptide should only be started, adjusted, or discontinued under medical supervision. This information is for educational purposes only and does not replace professional medical advice. Never stop a prescribed treatment without consulting your healthcare provider first, as abrupt discontinuation may have consequences.

With other peptides

  • Safe:Hyaluronic Acid — May be used together under medical guidance.
  • Safe:Retinol — May be used together under medical guidance.
  • Safe:Vitamin C (stabilized forms) — May be used together under medical guidance.

With medications

  • Caution:Benzoyl Peroxide — Use with caution—discuss with your healthcare provider.
  • Caution:High-concentration AHAs (>15%) — Use with caution—discuss with your healthcare provider.
  • Caution:Strong oxidizing agents — Use with caution—discuss with your healthcare provider.

With supplements

  • Safe:Multivitamins — Generally safe to take alongside Palmitoyl Oligopeptide. Space doses apart if taking oral formulations to ensure optimal absorption.
  • Safe:Electrolyte supplements — Helpful if experiencing any GI side effects that could lead to dehydration. Safe to combine.

Effectiveness

How do I know it's working?

Limited human trials · first signs weeks 1-4

Evidence level

Limited human trials

60/100

Regulatory status

Research compound

Onset of effects

Moderate

(1-2 weeks)

How it works

Palmitoyl-oligopeptide is a signal peptide coupled with a fatty acid (palmitic acid) that tells your skin cells to produce more collagen and elastin.

The fatty acid helps it penetrate the skin barrier, so it can reach deeper skin cells. This stimulates your skin's natural structural proteins, improving firmness, elasticity, and reducing signs of aging.

The deeper mechanism

Palmitoyl-oligopeptide is a palmitoyl-coupled signal peptide designed to improve skin penetration through increased lipophilicity while activating fibroblast-mediated collagen synthesis.

The palmitic acid moiety increases skin barrier penetration and cellular uptake, allowing the oligopeptide sequence to interact with cell surface receptors (potentially TGF-β-related signaling) or intracellular signaling pathways that upregulate type I and III collagen gene expression.

Palmitoyl conjugation is a biotechnological modification that mimics naturally occurring lipidated peptides, enhancing dermal bioavailability compared to hydrophilic parent sequences.

Signal peptide mechanisms activate fibroblast transcription factors (including NF-κB-dependent pathways) that increase ECM protein synthesis including hyaluronic acid production, improving hydration and dermal density.

What to expect

  1. Weeks 1-4

    What you might notice

    • Skin barrier strengthening and initial hydration improvements
    • Matrikine signaling activates fibroblast collagen and elastin gene expression
    • Subtle improvements in skin texture and moisture retention may be noticed

    What's normal

    • Full integration of Palmitoyl Oligopeptide into physiological systems is established
    • Long-term Palmitoyl Oligopeptide response remains personalized to your physiology
    • Palmitoyl Oligopeptide tolerance is well-maintained with consistent dosing

    What's next

    • Maintain your established Palmitoyl Oligopeptide protocol for sustained benefits
    • Continue periodic monitoring to confirm Palmitoyl Oligopeptide efficacy
    • Review comprehensive Palmitoyl Oligopeptide response with your provider
  2. Weeks 4-8

    What you might notice

    • Measurable firmness improvement begins
    • New collagen and elastin synthesis becomes apparent
    • Fine lines appear softer
    • Skin texture refinement progresses with continued twice-daily application

    What's normal

    • Palmitoyl Oligopeptide is now achieving steady-state pharmacokinetics
    • Measurable changes aligned with Palmitoyl Oligopeptide's mechanism may appear
    • Initial adjustment effects typically resolve by this point

    What's next

    • Maintain Palmitoyl Oligopeptide dosing exactly as established
    • Track progress toward intended outcomes in detail
    • Review lab work or biomarker changes with your healthcare team
  3. Weeks 8-12+

    What you might notice

    • Optimal results achieved
    • Significant wrinkle reduction documented in clinical studies
    • Improved elasticity, firmness, and overall skin tone
    • Continued use maintains and builds upon improvements

    What's normal

    • Full therapeutic effects of Palmitoyl Oligopeptide are well-characterized at this point
    • Maintenance of Palmitoyl Oligopeptide's therapeutic effects is typical
    • Tolerance patterns with Palmitoyl Oligopeptide are generally stable over months

    What's next

    • Comprehensive assessment of Palmitoyl Oligopeptide efficacy should be conducted
    • Discuss long-term continuation, cycling, or protocol modifications
    • Continue regular monitoring of relevant biomarkers or symptoms

Signs it's working

Treatment Response

  • Improvement in the primary symptoms or condition being treated
  • Positive changes in relevant lab values or clinical markers
  • Consistent, stable response to Palmitoyl Oligopeptide over time
  • Reduction in symptom frequency or severity

General Well-being

  • Improved energy levels and daily functioning
  • Better quality of life related to the treated condition
  • Manageable or absent side effects indicating good tolerance
  • Positive feedback from healthcare provider during check-ups

Not seeing results? Common reasons

  • Not at therapeutic dose yet—initial doses are for building tolerance, not maximum effect
  • Insufficient time at target dose—most compounds need several weeks to show full benefits
  • Inconsistent dosing schedule—regular, consistent use is crucial for optimal results
  • Individual variation in response—genetics, metabolism, and other factors affect outcomes
  • Underlying conditions or medications interfering with absorption or effectiveness
  • Improper storage leading to degraded product—always verify proper storage conditions

Key research

2025[1]
“Noninvasive monitoring of palmitoyl hexapeptide-12 in human skin layers: mechanical interaction and skincare benefits”Ligorio C, et al.Finding: Palmitoyl hexapeptide-12 demonstrated self-assembly in skin layers, initiating gel formation through endogenous ions and strengthening the skin barrier. Co-assembly with native molecules created biocooperative structures for cosmetic benefit.View study
2025[2]
“Self-assembly of short biopeptides onto skin tissue components studied using QCM-D”Murthy NS, et al.Finding: Six cosmetic peptides showed differential affinities for skin components—collagen proved most adhesive, while hyaluronic acid had minimal affinity. Palmitoyl-modified peptides showed order-of-magnitude higher adsorption than acetylated versions.View study
2025[3]
“Synergistic effects of injectable platelet-rich fibrin and bioactive peptides on dermal fibroblast viability and ECM gene expression”Paccola AGL, et al.Finding: Combining platelet-rich fibrin with palmitoyl pentapeptide-4 synergistically increased fibroblast viability and upregulated extracellular matrix genes. The combination showed stronger effects than individual treatments.View study
2025[4]
“Bioactive peptides in cosmetic formulations: review of current in vitro and ex vivo evidence”van Walraven N, et al.Finding: A comprehensive review identified 102 commercially available cosmetic peptides with diverse mechanisms: signaling peptides stimulate collagen, modulation peptides affect pigmentation, inhibitor peptides block enzymes. Evidence quality varies.View study
2024[5]
“Matrikines in the skin: origin, effects, and therapeutic potential”Sirois JP, et al.Finding: No abstract available for comprehensive analysis.View study
2018[6]
“Safety Assessment of Tripeptide-1, Palmitoyl Tripeptide-1, and Related Palmitoyl Peptides as Used in Cosmetics”Johnson W et al., Cosmetic Ingredient Review (CIR) Expert PanelFinding: CIR review covering Palmitoyl Oligopeptide (commonly Palmitoyl Tripeptide-1 / Pal-GHK in the Matrixyl 3000 context); leave-on use up to ~0.002% and customary use below 10 ppm, applied several times daily.View study

Questions

Frequently asked

How is Palmitoyl Oligopeptide different from Palmitoyl Pentapeptide-4 (Matrixyl)?

Palmitoyl Oligopeptide (Hexapeptide-12) uses a VGVAPG sequence derived from elastin, while Palmitoyl Pentapeptide-4 (Matrixyl) uses a KTTKS sequence derived from procollagen. Both are matrikine signal peptides but target slightly different aspects of ECM production. They are complementary and often found together in advanced formulations.

Can Palmitoyl Oligopeptide be used with retinol?

Yes. Palmitoyl Oligopeptide and retinol work through complementary mechanisms for collagen stimulation. Apply the peptide serum first, allow absorption, then apply retinol. For sensitive skin, consider using peptide in the morning and retinol at night.

How long until I see results?

Initial hydration improvements may be noticeable within 2-4 weeks. Measurable wrinkle reduction and firmness improvements typically require 8-12 weeks of consistent twice-daily application. Results continue to build with ongoing use.

Is Palmitoyl Oligopeptide safe for sensitive skin?

Yes. Palmitoyl Oligopeptide has an excellent safety profile with minimal irritation potential. It is well-tolerated across skin types including sensitive skin. The CIR (Cosmetic Ingredient Review) panel has affirmed its safety for cosmetic use.

What is the ideal concentration for best results?

Clinical evidence supports concentrations of 0.3-1% in finished products for meaningful anti-aging benefits. Higher concentrations (1-3%) may provide enhanced effects in intensive treatment formulations. Even very low concentrations (0.003%) show measurable biological activity in laboratory studies.

Further reading

History & related research

History · since 1990

The chemical messenger that tells your skin to stay young and firm

A cosmetic peptide engineered by attaching a fatty acid chain to a six-amino-acid chain. It signals skin cells to produce more collagen and hyaluronic acid, the two substances that keep skin firm, smooth, and hydrated.

Read the full history of Palmitoyl Oligopeptide

Ready for the protocol?

Every dosing tier, administration route, timing note, and dose-adjustment rule for Palmitoyl Oligopeptide, on one page.

Medical disclaimer

Palmitoyl Oligopeptide is an investigational research compound not approved by the FDA for human therapeutic use. This information is for educational purposes only and should not be construed as medical advice. Always consult with a qualified healthcare provider before starting any new supplement or treatment protocol.

Last updated: Aug 10, 2026