Ingredient review
Cetyl Myristate
INCI: Cetyl Myristate
Cetyl Myristate is a gentle emollient that softens skin and improves product texture with a low risk of irritation or clogged pores.
In plain English
Cetyl Myristate is a waxy ingredient made from cetyl alcohol (a fatty alcohol) and myristic acid (a fatty acid found in coconut oil). It helps moisturizers and lotions feel smooth and silky on your skin without being greasy. Think of it as a skin softener that also helps other ingredients spread nicely.
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
Cetyl Myristate 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 Cetyl Myristate.
- 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
Cetyl Myristate is a synthetic ester, meaning it is created by combining a fatty alcohol (cetyl alcohol) with a fatty acid (myristic acid). It is a white, waxy solid at room temperature and is commonly used in cosmetics to improve texture and provide a pleasant feel.
How it works
When applied to the skin, Cetyl Myristate forms a thin, non-occlusive film that helps reduce water loss (transepidermal water loss, or TEWL) while making the skin feel soft and smooth. It also acts as a lubricant, helping other ingredients glide on easily and improving the overall sensory experience of a product.
Pros
Gentle on skin
Cetyl Myristate has a low irritation risk, making it suitable for sensitive skin types and daily use.
Improves product feel
It gives creams and lotions a silky, smooth texture that spreads easily without leaving a heavy or sticky residue.
Cons and cautions
Sourcing concerns
Cetyl Myristate is often derived from palm oil, which can be associated with deforestation and environmental impact unless certified sustainable.
Limited standalone benefits
While it softens skin, it does not provide active benefits like hydration or anti-aging, so it is best used in combination with other ingredients.
Best for
- People with normal to dry skin looking for a gentle emollient
- Those who prefer lightweight, non-greasy moisturizers
Use caution if
- Individuals with a known allergy to fatty alcohols or esters (very rare)
- Those seeking exclusively plant-based ingredients (check source)
Usage tips
Safety summary
Cetyl Myristate is considered safe for use in cosmetics with low irritation and comedogenic risks. It is well-tolerated by most skin types, including sensitive skin, though rare allergic reactions are possible.
Research notes
Research on Cetyl Myristate primarily focuses on its safety and function as an emollient. The Cosmetic Ingredient Review (CIR) panel has reviewed it and found it safe for use in cosmetics. No significant clinical studies highlight unique benefits beyond its role as a texture enhancer.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. The Cosmetic Ingredient Review (CIR) panel has deemed it safe as used.
- Common uses
- Moisturizers, Lotions, Creams, Lip products, Hair conditioners
- Environmental note
- Cetyl Myristate is biodegradable, but its production may involve palm oil, which can contribute to deforestation. Look for RSPO-certified or sustainably sourced versions.
Good to know
- Cetyl Myristate is often used in lip balms and lipsticks for a smooth, non-tacky feel.
- It is considered safe by major regulatory bodies when used in typical cosmetic concentrations.
Common questions
What is Cetyl Myristate in beauty products?
Cetyl Myristate is a waxy ingredient made from cetyl alcohol (a fatty alcohol) and myristic acid (a fatty acid found in coconut oil). It helps moisturizers and lotions feel smooth and silky on your skin without being greasy. Think of it as a skin softener that also helps other ingredients spread nicely.
What does Cetyl Myristate do in a beauty product?
When applied to the skin, Cetyl Myristate forms a thin, non-occlusive film that helps reduce water loss (transepidermal water loss, or TEWL) while making the skin feel soft and smooth. It also acts as a lubricant, helping other ingredients glide on easily and improving the overall sensory experience of a product.
Is Cetyl Myristate safe for most people?
Cetyl Myristate is considered safe for use in cosmetics with low irritation and comedogenic risks. It is well-tolerated by most skin types, including sensitive skin, though rare allergic reactions are possible.
Who should be careful with Cetyl Myristate?
Individuals with a known allergy to fatty alcohols or esters (very rare) Those seeking exclusively plant-based ingredients (check source)
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.