Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer
What Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer is & what it does
Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer is a synthetic film-forming polymer made by crosslinking trimethylpentanediol, adipic acid, and glycerin. In skincare and sunscreen formulas it acts as a film former and texture modifier, helping spread the product evenly and leave a smooth, flexible finish on the skin. A notable property is that it can improve the water resistance and wear of a film, which is useful in long-lasting and sunscreen products.
What does Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer do in skincare?
It works as a film former and texture agent. When the product dries it leaves a thin, flexible film on the skin that smooths the feel, helps the product spread evenly, and can improve wear and water resistance. This makes it useful in long-lasting makeup and sunscreen formulas.
Is Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer safe?
It is a synthetic film-forming polymer used in cosmetics, and large polymers like this tend to stay on the skin surface rather than being absorbed. It is generally considered low-risk for topical use, though anyone with very reactive skin can patch test first. For specific concerns, check the full product label.
Is Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer natural or synthetic?
It is synthetic. It is made by chemically crosslinking three building blocks, trimethylpentanediol, adipic acid, and glycerin, into a single polymer. The glycerin portion can be plant-derived, but the finished crosspolymer is a manufactured material.
Sunscreens with Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer
We rate 40 sunscreens that contain it, showing the top 10 by overall score:
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Avene Eau Thermale Avène Fluido Anti-imperfeições SPF50
97/100
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Avene Ultra Fluid Invisible SPF 50
97/100
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Louis Widmer Sub Protection Face SPF 30 Parfumvrij
95/100
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iUnik Centella Calming Daily Sun Water SPF 50+ Pa++++
95/100
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ISDIN Fotoultra 100 Solar Allergy Protect SPF 50+
95/100
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Avene Ultra Fluid Sensitive Skin SPF 50 Perfector
94/100
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ISDIN Fotoultra 100 Sun Tinted Face Cream Depigmenting SPF50+
93/100
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Rilastil Sun System Baby Spray Transparent SPF 50+
93/100
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BABE
Babé Laboratorios Pediatric Sunscreen Lotion SPF 50+
92/100
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Typology L53 - SPF 50 Invisible Sun Stick Astaxanthin + Karanja Oil
92/100