Ingredient review
Myristyl Myristate
INCI: Myristyl Myristate
A rich emollient that softens skin and thickens formulas, but may clog pores for acne-prone skin.
In plain English
Myristyl myristate is a fatty ingredient made from myristic acid (found in coconut oil or palm oil) and myristyl alcohol. It feels smooth and creamy on the skin, helping to soften and condition while also giving lotions and creams a thicker, more luxurious texture. Because it is a heavier oil, it can be comedogenic for some people, meaning it may block pores and cause breakouts.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is low; clogging risk is moderate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- moderate
Quick decision guide
Useful, but context matters
Myristyl Myristate can be useful, but watch for possible clogging concerns.
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 Myristyl 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
moderateMay be fine for many users but deserves caution if you are breakout-prone.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
Myristyl myristate is a fatty ester created by combining myristic acid (a saturated fatty acid from plant oils like coconut or palm) with myristyl alcohol. It appears as a white to off-white waxy solid and is used to improve the feel and consistency of cosmetic products.
How it works
In a cosmetic product, myristyl myristate sits on the surface of the skin, forming a thin, non-greasy film that reduces water loss (transepidermal water loss, or TEWL) and leaves skin feeling soft and smooth. It also helps thicken the product, giving it a richer, more spreadable texture that feels luxurious during application.
Pros
Excellent emollient
Myristyl myristate softens and smooths the skin by forming a protective barrier that locks in moisture, making it ideal for dry skin types.
Improves product feel
It thickens formulas and gives them a silky, spreadable texture that feels luxurious and helps the product apply evenly.
Cons and cautions
May clog pores
With a moderate comedogenic rating, this ingredient can block pores and trigger breakouts, especially for those with oily or acne-prone skin.
Sustainability concerns
Often derived from palm oil, which can be linked to deforestation unless sourced from certified sustainable suppliers.
Best for
- People with dry or normal skin looking for a rich, emollient moisturizer
- Those who enjoy thick, creamy textures in their skincare products
Use caution if
- Individuals with oily or acne-prone skin, as it may contribute to clogged pores
Usage tips
Safety summary
Myristyl myristate is generally recognized as safe for topical use in cosmetics. It has low irritation potential but a moderate comedogenic risk, meaning it may cause breakouts in some individuals. No serious safety concerns have been reported at typical usage levels.
Research notes
Research supports myristyl myristate as an effective emollient and thickening agent. Its comedogenic potential is well-documented in cosmetic ingredient databases, but no major studies link it to long-term health risks. It is widely used and accepted in the cosmetics industry.
Common label clues
- Typical concentration
- 1% to 10% in leave-on products
- Regulatory status
- Approved for use in cosmetics by the FDA (US) and the European Commission, with no concentration restrictions in leave-on products.
- Common uses
- Moisturizers, Creams, Lotions, Lip products, Makeup
- Environmental note
- Myristyl myristate is often derived from palm oil; choosing products with RSPO-certified palm oil or plant-based alternatives can reduce environmental impact.
Good to know
- Myristyl myristate is often used in lipsticks and lip balms to provide a smooth, creamy application.
- It is considered safe for use in cosmetics by major regulatory bodies at typical concentrations.
Common questions
What is Myristyl Myristate in beauty products?
Myristyl myristate is a fatty ingredient made from myristic acid (found in coconut oil or palm oil) and myristyl alcohol. It feels smooth and creamy on the skin, helping to soften and condition while also giving lotions and creams a thicker, more luxurious texture. Because it is a heavier oil, it can be comedogenic for some people, meaning it may block pores and cause breakouts.
What does Myristyl Myristate do in a beauty product?
In a cosmetic product, myristyl myristate sits on the surface of the skin, forming a thin, non-greasy film that reduces water loss (transepidermal water loss, or TEWL) and leaves skin feeling soft and smooth. It also helps thicken the product, giving it a richer, more spreadable texture that feels luxurious during application.
Is Myristyl Myristate safe for most people?
Myristyl myristate is generally recognized as safe for topical use in cosmetics. It has low irritation potential but a moderate comedogenic risk, meaning it may cause breakouts in some individuals. No serious safety concerns have been reported at typical usage levels.
Who should be careful with Myristyl Myristate?
Individuals with oily or acne-prone skin, as it may contribute to clogged pores
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.