Propylene Glycol Isoceteth-3 Acetate

What is Propylene Glycol Isoceteth-3 Acetate?

Propylene Glycol Isoceteth-3 Acetate is a synthetic compound formed by esterifying propylene glycol with the acetate derivative of isoceteth-3, an ethoxylated branched-chain fatty alcohol featuring three ethylene oxide units. This structure imparts amphiphilic properties, balancing water-soluble and oil-soluble segments. Commonly incorporated into moisturizers, lotions, and creams in skincare formulations, it acts as a lightweight emollient. By lowering surface tension, it enhances product spreadability and creates a thin, non-greasy film on the skin surface. This film mimics natural lipids, helping to smooth irregularities, boost tactile softness, and minimize transepidermal water loss, particularly when combined with other barrier-supporting agents. Its mild nature suits everyday cosmetic applications focused on texture improvement.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1-3 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Delivers a silky, smooth texture to skin surfaces.

Supports skin flexibility and softness.

Enhances formulation glide and moisture retention.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
People with dry or textured skin seeking lightweight conditioning.
Those with rare sensitivities to glycol derivatives.
Individuals wanting improved product application in routines.
People avoiding synthetic ethoxylated ingredients.
Users of emollient-rich creams and lotions.
Individuals who prefer fully natural formulations.

Safety Notes

  • Rated low hazard by standard cosmetic safety assessments.
  • Non-comedogenic with minimal pore-clogging potential.

Frequently Asked Questions about Propylene Glycol Isoceteth-3 Acetate

What does this ingredient do in skincare?

It softens and smooths skin while improving product spread and moisture hold.

Is it safe for daily use?

Yes, it carries low safety concerns from cosmetic evaluations.

Does it cause breakouts?

No, it has a non-comedogenic rating.