Ingredient review
Ditrimethylolpropane Myristate/Stearate
INCI: DITRIMETHYLOLPROPANE MYRISTATE/STEARATE
A lightweight synthetic emollient that softens skin without clogging pores, commonly used to improve product texture and spreadability.
In plain English
Ditrimethylolpropane Myristate/Stearate is a man-made oil-like ingredient that helps moisturizers and makeup feel smooth and silky on the skin. It spreads easily and leaves a soft, non-greasy finish, making it popular in products that need a light, elegant feel. Think of it as a modern alternative to heavier oils or silicones.
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
Ditrimethylolpropane Myristate/Stearate 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 Ditrimethylolpropane Myristate/Stearate.
- 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 ester created by combining ditrimethylolpropane with myristic and stearic fatty acids. It is a clear, viscous liquid that acts as an emollient and skin conditioner.
How it works
It sits on the skin's surface, filling in tiny gaps between skin cells to create a smooth, soft texture. It also helps other ingredients spread evenly and can improve the stability of emulsions (mixtures of oil and water).
Pros
Lightweight feel
Unlike heavier oils, this ester absorbs quickly and leaves no sticky or greasy residue, making it ideal for daytime moisturizers and sunscreens.
Low pore-clogging risk
It has a low comedogenic rating, so it is less likely to cause breakouts compared to some natural oils like coconut or cocoa butter.
Cons and cautions
Synthetic origin
It is manufactured in a lab, which may be a turn-off for consumers seeking natural or plant-based skincare ingredients.
Limited independent research
Most safety data comes from industry sources, and there are fewer peer-reviewed studies compared to more common emollients like glycerin or jojoba oil.
Best for
- People with oily or combination skin who want lightweight moisture
- Anyone who prefers non-greasy, fast-absorbing textures
Use caution if
- Those who strictly avoid synthetic ingredients
Usage tips
Safety summary
Ditrimethylolpropane Myristate/Stearate is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in regulatory reviews.
Research notes
Safety assessments by industry panels (e.g., CIR) have reviewed similar esters and found them safe. However, specific peer-reviewed studies on this exact ingredient are limited, so evidence is based on analogy to related esters.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics globally, including by the U.S. FDA and EU CosIng database, with no known restrictions at typical use levels.
- Common uses
- Moisturizers, Sunscreens, Makeup foundations, Lip products
- Environmental note
- As a synthetic ester, it is not biodegradable in the same way as natural oils, but it is not classified as a bioaccumulative or toxic substance.
Good to know
- It is often used as a silicone alternative in 'silicone-free' formulations.
- It can help sunscreen actives spread more evenly for better UV protection.
Common questions
What is Ditrimethylolpropane Myristate/Stearate in beauty products?
Ditrimethylolpropane Myristate/Stearate is a man-made oil-like ingredient that helps moisturizers and makeup feel smooth and silky on the skin. It spreads easily and leaves a soft, non-greasy finish, making it popular in products that need a light, elegant feel. Think of it as a modern alternative to heavier oils or silicones.
What does Ditrimethylolpropane Myristate/Stearate do in a beauty product?
It sits on the skin's surface, filling in tiny gaps between skin cells to create a smooth, soft texture. It also helps other ingredients spread evenly and can improve the stability of emulsions (mixtures of oil and water).
Is Ditrimethylolpropane Myristate/Stearate safe for most people?
Ditrimethylolpropane Myristate/Stearate is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in regulatory reviews.
Who should be careful with Ditrimethylolpropane Myristate/Stearate?
Those who strictly avoid synthetic ingredients
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.