Ingredient review

Ditrimethylolpropane Tetrahydroxystearate

INCI: DITRIMETHYLOLPROPANE TETRAHYDROXYSTEARATE

A gentle, non-greasy emollient that helps soften and smooth skin without clogging pores.

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In plain English

Ditrimethylolpropane tetrahydroxystearate is a synthetic oil-like ingredient that spreads easily on the skin, making it feel soft and smooth. It's often used in moisturizers and serums to improve texture and provide a silky, non-sticky finish. Because it's lightweight and unlikely to clog pores, it's a good choice for people with oily or acne-prone skin.

Review score

Safety, usefulness, and evidence

4.0Good
4.0/ 5

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
How reviews are scored

Quick decision guide

Useful, but context matters

Ditrimethylolpropane Tetrahydroxystearate 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.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Ditrimethylolpropane Tetrahydroxystearate.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. 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

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

A synthetic ester derived from tetrahydroxystearic acid and ditrimethylolpropane, designed to mimic the feel of natural oils while offering better stability and a lighter texture.

How it works

It forms a thin, breathable film on the skin's surface that reduces water loss and improves skin softness. Its molecular structure allows it to spread evenly, giving a silky after-feel without greasiness.

Pros

Lightweight feel

Unlike heavier oils, this ester absorbs quickly and leaves no sticky residue, making it ideal for daytime use under makeup.

Low pore-clogging risk

Rated low on the comedogenic scale, it's a safe choice for acne-prone skin that still needs hydration.

Cons and cautions

Synthetic origin

Derived from petrochemicals, it may not align with preferences for natural or plant-based skincare.

Limited research

While safety data exists, there are fewer long-term studies compared to traditional natural oils like jojoba or squalane.

Best for

  • People with oily or combination skin seeking a lightweight moisturizer
  • Anyone looking for a non-comedogenic emollient in serums or foundations

Use caution if

  • Those who strictly avoid synthetic ingredients in their skincare routine

Usage tips

Use in moisturizers or serums as a final step to lock in hydration.
Pair with humectants like glycerin for balanced moisture.
Apply a small amount to test texture preference before full-face use.

Safety summary

Ditrimethylolpropane tetrahydroxystearate is considered safe for topical use in cosmetics. It has low irritation and sensitization potential, and no significant safety concerns have been raised by regulatory bodies.

Research notes

Safety assessments by the Cosmetic Ingredient Review (CIR) panel and other bodies support its use as a skin-conditioning agent. Most data focus on irritation and comedogenicity, with no evidence of toxicity at typical concentrations.

Common label clues

Typical concentration
1% to 10%
Regulatory status
Approved for use in cosmetics in the EU, US, and other major markets. No known restrictions at typical use levels.
Common uses
Moisturizers, Serums, Lip products, Makeup foundations
Environmental note
As a synthetic ester, it is not biodegradable in the same way as natural oils, but it is not classified as a major environmental concern at cosmetic use levels.

Good to know

  • Often found in 'velvet finish' or 'silk touch' formulas.
  • Stable in formulations and does not easily oxidize like natural oils.

Common questions

What is Ditrimethylolpropane Tetrahydroxystearate in beauty products?

Ditrimethylolpropane tetrahydroxystearate is a synthetic oil-like ingredient that spreads easily on the skin, making it feel soft and smooth. It's often used in moisturizers and serums to improve texture and provide a silky, non-sticky finish. Because it's lightweight and unlikely to clog pores, it's a good choice for people with oily or acne-prone skin.

What does Ditrimethylolpropane Tetrahydroxystearate do in a beauty product?

It forms a thin, breathable film on the skin's surface that reduces water loss and improves skin softness. Its molecular structure allows it to spread evenly, giving a silky after-feel without greasiness.

Is Ditrimethylolpropane Tetrahydroxystearate safe for most people?

Ditrimethylolpropane tetrahydroxystearate is considered safe for topical use in cosmetics. It has low irritation and sensitization potential, and no significant safety concerns have been raised by regulatory bodies.

Who should be careful with Ditrimethylolpropane Tetrahydroxystearate?

Those who strictly avoid synthetic ingredients in their skincare routine

Research sources

Cosmetic Ingredient Review (CIR) Safety AssessmentOpenINCI Database – Ditrimethylolpropane TetrahydroxystearateOpenPubMed – Ester Emollients in SkincareOpen

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.