Ingredient review
Myristoyl Hexapeptide-16
INCI: MYRISTOYL HEXAPEPTIDE-16
A synthetic peptide that may help improve skin firmness and reduce fine lines, with low irritation potential.
In plain English
Myristoyl Hexapeptide-16 is a lab-made protein fragment (peptide) that is added to skincare products to help support the skin's structure. Think of it as a tiny signal that tells skin cells to produce more collagen and other supportive proteins, which can make skin feel firmer and look smoother over time. It is generally well-tolerated and unlikely to clog pores or cause irritation.
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-16 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-16.
- 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 consisting of six amino acids (hexapeptide) attached to a myristic acid chain. The myristic acid helps the peptide penetrate the skin more easily.
How it works
Once applied, the peptide is thought to mimic natural signaling molecules in the skin, encouraging fibroblasts to produce more collagen and elastin. This can help improve skin firmness and reduce the appearance of fine lines and wrinkles with consistent use.
Pros
Gentle on skin
Low irritation and comedogenic risk makes it suitable for most skin types, including sensitive skin.
Supports skin structure
May help boost collagen production, leading to firmer, more resilient skin over time.
Cons and cautions
Slow results
Visible improvements in firmness and wrinkles typically take 4 to 12 weeks of consistent use.
Variable efficacy
Effectiveness depends on the formulation, concentration, and individual skin response; not everyone will see dramatic changes.
Best for
- Adults looking to support skin firmness and reduce early signs of aging
- Those with normal to dry skin who want a gentle anti-aging ingredient
Use caution if
- Individuals with known peptide allergies (rare)
- Those seeking immediate or dramatic results (peptides work gradually)
Usage tips
Safety summary
Myristoyl Hexapeptide-16 is considered safe for cosmetic use at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. Allergic reactions are rare.
Research notes
Clinical and laboratory studies suggest that myristoyl hexapeptide-16 can stimulate collagen synthesis and improve skin firmness. However, most evidence comes from small studies or ingredient supplier data, and more independent research is needed to confirm long-term benefits.
Common label clues
- Typical concentration
- Typically used at 0.5% to 2% in leave-on products
- Regulatory status
- Approved as a cosmetic ingredient in the EU, US, and many other regions. Not classified as a drug ingredient.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- Synthetic peptides are produced in controlled lab settings, reducing environmental impact compared to animal-derived ingredients.
Good to know
- Peptides are best stored in cool, dark conditions to maintain stability.
- Myristoyl Hexapeptide-16 is often combined with other peptides for a broader anti-aging effect.
Common questions
What is Myristoyl Hexapeptide-16 in beauty products?
Myristoyl Hexapeptide-16 is a lab-made protein fragment (peptide) that is added to skincare products to help support the skin's structure. Think of it as a tiny signal that tells skin cells to produce more collagen and other supportive proteins, which can make skin feel firmer and look smoother over time. It is generally well-tolerated and unlikely to clog pores or cause irritation.
What does Myristoyl Hexapeptide-16 do in a beauty product?
Once applied, the peptide is thought to mimic natural signaling molecules in the skin, encouraging fibroblasts to produce more collagen and elastin. This can help improve skin firmness and reduce the appearance of fine lines and wrinkles with consistent use.
Is Myristoyl Hexapeptide-16 safe for most people?
Myristoyl Hexapeptide-16 is considered safe for cosmetic use at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. Allergic reactions are rare.
Who should be careful with Myristoyl Hexapeptide-16?
Individuals with known peptide allergies (rare) Those seeking immediate or dramatic results (peptides work gradually)
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.