Ingredient review
Myristoyl Hexapeptide-13
INCI: MYRISTOYL HEXAPEPTIDE-13
A synthetic peptide that may help reduce fine lines and improve skin firmness by signaling collagen production.
In plain English
Myristoyl Hexapeptide-13 is a lab-made protein fragment (peptide) that attaches to a fatty acid (myristic acid) to help it absorb into skin. Once absorbed, it sends signals to skin cells to produce more collagen and elastin, which are the building blocks that keep skin firm and smooth. Think of it as a tiny messenger that tells your skin to act younger.
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 Hexapeptide-13 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 Hexapeptide-13.
- 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 peptide (a short chain of amino acids) chemically linked to myristic acid, a fatty acid that improves penetration into the skin. It is designed to mimic natural signaling molecules that trigger collagen synthesis.
How it works
After application, the myristoyl group helps the peptide penetrate the outer skin layer. Once inside, the hexapeptide sequence binds to specific receptors on fibroblasts (collagen-making cells), stimulating them to produce more collagen and elastin. This can help reduce the appearance of fine lines and improve skin firmness over time.
Pros
Gentle anti-aging
Works by supporting your skin's natural collagen production without irritation, making it suitable for sensitive skin.
Good penetration
The myristoyl fatty acid helps the peptide absorb into skin more effectively than some other peptides.
Cons and cautions
Subtle results
Improvements in firmness and wrinkles are gradual and may take weeks to notice; not a quick fix.
Limited human data
Most evidence comes from lab or small studies; large-scale human trials are lacking.
Best for
- Adults looking for gentle anti-aging support
- Those with fine lines or loss of firmness who prefer non-irritating ingredients
Use caution if
- Anyone with known allergy to peptides (rare)
- Those seeking dramatic, immediate results
Usage tips
Safety summary
Myristoyl Hexapeptide-13 is considered safe for topical use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. No significant safety concerns have been reported in available literature.
Research notes
Evidence is moderate, with in vitro and some small human studies suggesting benefits for collagen stimulation and wrinkle reduction. More large-scale, long-term human trials would strengthen the evidence base.
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
- Synthetic peptides are produced in labs, reducing the need for animal-derived ingredients. Their environmental impact is generally low due to small usage concentrations.
Good to know
- Peptides work best when combined with other anti-aging ingredients like antioxidants and sunscreen.
- Myristoyl Hexapeptide-13 is often found in formulas alongside other peptides for a synergistic effect.
Common questions
What is Myristoyl Hexapeptide-13 in beauty products?
Myristoyl Hexapeptide-13 is a lab-made protein fragment (peptide) that attaches to a fatty acid (myristic acid) to help it absorb into skin. Once absorbed, it sends signals to skin cells to produce more collagen and elastin, which are the building blocks that keep skin firm and smooth. Think of it as a tiny messenger that tells your skin to act younger.
What does Myristoyl Hexapeptide-13 do in a beauty product?
After application, the myristoyl group helps the peptide penetrate the outer skin layer. Once inside, the hexapeptide sequence binds to specific receptors on fibroblasts (collagen-making cells), stimulating them to produce more collagen and elastin. This can help reduce the appearance of fine lines and improve skin firmness over time.
Is Myristoyl Hexapeptide-13 safe for most people?
Myristoyl Hexapeptide-13 is considered safe for topical use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. No significant safety concerns have been reported in available literature.
Who should be careful with Myristoyl Hexapeptide-13?
Anyone with known allergy to peptides (rare) Those seeking dramatic, immediate results
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.