Ingredient review
Myristoyl Pentapeptide-11
INCI: MYRISTOYL PENTAPEPTIDE-11
A lab-made peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with low irritation risk.
In plain English
Myristoyl Pentapeptide-11 is a small protein fragment (a peptide) made in a lab. When applied to skin, it acts like a messenger, telling skin cells to make more collagen and other supportive proteins. This can help plump the skin, soften fine lines, and improve overall firmness over time. It's a gentle ingredient, unlikely to cause irritation or clog pores, making it suitable for many skin types.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Myristoyl Pentapeptide-11 is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Myristoyl Pentapeptide-11.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A synthetic pentapeptide (a chain of five amino acids) attached to a myristoyl fatty acid chain, which helps it penetrate the skin more easily. It is designed to mimic natural signaling peptides that stimulate collagen production.
How it works
Once applied, the myristoyl group helps the peptide absorb into the upper layers of skin. There, it binds to receptors on fibroblasts (collagen-making cells) and triggers them to produce more collagen, elastin, and other matrix proteins. This helps reinforce the skin's structure, reducing the appearance of wrinkles and improving firmness.
Pros
Gentle anti-aging support
Works without irritation, making it a good option for sensitive skin or those new to anti-aging ingredients.
Backed by peptide science
Peptides like this one are well-studied in dermatology for collagen stimulation, offering a reliable, non-invasive approach to firmness.
Cons and cautions
Slow, subtle results
Unlike retinoids or acids, this peptide takes weeks to months of daily use to show visible improvement, and effects are modest.
Limited standalone power
Often works best in a formula with other anti-aging ingredients; using it alone may not deliver dramatic changes.
Best for
- Anyone looking to reduce fine lines and improve skin firmness
- People with sensitive skin who cannot tolerate stronger anti-aging ingredients like retinol
Use caution if
- Those with known allergies to synthetic peptides (very rare)
Usage tips
Safety summary
Myristoyl Pentapeptide-11 is considered safe for cosmetic use. It has low irritation and allergy potential, and no significant safety concerns have been reported in published research or regulatory reviews.
Research notes
Studies on similar palmitoyl peptides show they can stimulate collagen synthesis in human skin cells. Direct research on Myristoyl Pentapeptide-11 is limited, but its mechanism is well-supported by peptide science. Evidence is moderate, with most data coming from ingredient suppliers and small clinical trials.
Common label clues
- Typical concentration
- 0.001% to 0.1%
- Regulatory status
- Approved as a cosmetic ingredient in the US, EU, and other major markets. Not classified as a drug.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- Synthetically produced, so it does not rely on animal or plant harvesting. Its environmental impact is minimal compared to some natural extracts.
Good to know
- Myristoyl Pentapeptide-11 is often found in anti-aging serums and eye creams.
- It is stable in most formulations and does not require special packaging.
Common questions
What is Myristoyl Pentapeptide-11 in beauty products?
Myristoyl Pentapeptide-11 is a small protein fragment (a peptide) made in a lab. When applied to skin, it acts like a messenger, telling skin cells to make more collagen and other supportive proteins. This can help plump the skin, soften fine lines, and improve overall firmness over time. It's a gentle ingredient, unlikely to cause irritation or clog pores, making it suitable for many skin types.
What does Myristoyl Pentapeptide-11 do in a beauty product?
Once applied, the myristoyl group helps the peptide absorb into the upper layers of skin. There, it binds to receptors on fibroblasts (collagen-making cells) and triggers them to produce more collagen, elastin, and other matrix proteins. This helps reinforce the skin's structure, reducing the appearance of wrinkles and improving firmness.
Is Myristoyl Pentapeptide-11 safe for most people?
Myristoyl Pentapeptide-11 is considered safe for cosmetic use. It has low irritation and allergy potential, and no significant safety concerns have been reported in published research or regulatory reviews.
Who should be careful with Myristoyl Pentapeptide-11?
Those with known allergies to synthetic peptides (very rare)
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.