Polyglyceryl-4 Caprate

What is Polyglyceryl-4 Caprate?

Polyglyceryl-4 Caprate is an ester formed from polyglycerol-4, a polymer of glycerol, and capric acid, a saturated fatty acid often derived from coconut or palm kernel oils. This makes it a renewable, PEG-free ingredient in the polyglyceryl esters group. In cosmetics, it appears in cleansers, moisturizers, sunscreens, and hair care products. It functions by lowering interfacial tension, allowing oil droplets to disperse evenly in water-based formulas for stable emulsions. As a surfactant, it aids in dirt removal and foam generation without stripping skin. Its emollient properties contribute a silky texture, improving product application and reducing tackiness while mimicking natural skin lipids for better compatibility.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 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.
Surfactant
Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.
Emulsifying agent
Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.

Benefits

Delivers a smooth, lightweight feel to skin surfaces.

Stabilizes oil-water mixtures for even-textured lotions and creams.

Facilitates gentle cleansing and dispersion in washes.

Who It's For

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

Who May Benefit Who Should Avoid
Individuals with normal to dry skin needing softness.
Those with rare allergies to coconut-derived fatty acids.
Users seeking mild surfactants in daily cleansers.
Individuals sensitive to ester-based surfactants.
People formulating or using stable emulsion products.
Anyone preferring to avoid multi-functional cosmetic ingredients.

Safety Notes

  • Considered low hazard with minimal irritation reports from reviews.
  • Non-comedogenic profile supports use across skin types.

Frequently Asked Questions about Polyglyceryl-4 Caprate

What makes Polyglyceryl-4 Caprate unique?

PEG-free ester from glycerol and capric acid, offering mild emulsifying and softening in cosmetics.

Safe for sensitive skin?

Yes, low irritation potential per safety data, suitable for various skin types.

Does it clog pores?

Non-comedogenic rating indicates low risk of pore blockage.