Pentaerythrityl Tetrastearate

What is Pentaerythrityl Tetrastearate?

Pentaerythrityl tetrastearate is a synthetic tetraester formed by reacting pentaerythritol, a sugar alcohol polyol, with four molecules of stearic acid, a saturated fatty acid derived from plant or animal sources. This results in a white, odorless, waxy solid commonly incorporated into color cosmetics like lipsticks, foundations, and mascaras. In formulations, it serves as a structural agent, providing rigidity and cohesion to solid products while enabling smooth glide-on application. Its emollient nature allows it to lubricate the skin surface, reducing friction during wear, and its viscosity-modifying effects help stabilize emulsions and suspensions for consistent texture and performance across temperatures.

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

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Binder
Helps hold solid ingredients together to form cohesive tablets, compacts, or sticks, improving pressability, integrity, and wear of the finished product.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.
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.

Benefits

Provides emolliency to soften and smooth skin texture.

Enhances product cohesion for better integrity and longevity.

Controls viscosity for improved spreadability and stability.

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 dry or rough skin needing softening agents.
People with rare sensitivities to fatty acid esters.
Makeup enthusiasts seeking smooth, long-wearing formulas.
Those preferring fully natural or plant-derived ingredients only.
Users preferring non-comedogenic thickeners in cosmetics.
Individuals experiencing irritation from similar waxy emollients.

Safety Notes

  • Considered safe for cosmetic use by regulatory reviews.
  • Low potential for comedogenicity or pore-clogging.

Frequently Asked Questions about Pentaerythrityl Tetrastearate

What products contain pentaerythrityl tetrastearate?

Commonly found in lipsticks, foundations, and mascaras for texture and structure.

Is it safe for sensitive skin?

Generally low irritation risk, suitable for most skin types with no major concerns.

Does it benefit dry skin?

Yes, as an emollient, it helps soften and smooth dry skin surfaces.