An ester solvent. It helps dissolve actives and improves formula texture. Well tolerated.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
A functional solvent. Safe.
Diethyl Succinate (INCI: Diethyl Succinate) is an ester that works as a solvent. In a formula it helps dissolve poorly soluble actives and improves the product's texture and spread. Place it as a functional component, not a skincare active. It does not treat wrinkles, pigmentation or redness; its job is formula support, helping other ingredients stay stable and well dispersed. In that role it is reliable. Applied topically it has no systemic relevance, so it can be used during pregnancy and breastfeeding. Tolerance is good, with low irritation and allergy potential. It does not clog pores and suits sensitive skin. As with any solvent, its behavior depends more on the full formula than on the ingredient itself.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Diethyl Succinate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Diethyl Succinate suits: normal, dry, combination, oily, sensitive.
An ester solvent.
The INCI name is Diethyl Succinate. It may also appear as: Диэтил сукцинат.
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