PEG-30 Stearate

PEG / Ethoxylated

What is PEG-30 Stearate?

PEG-30 Stearate is a synthetic ingredient formed by esterifying stearic acid, a fatty acid from plant or animal sources, with polyethylene glycol containing about 30 ethylene oxide units. It belongs to the PEG ester family commonly used in rinse-off and leave-on cosmetics like creams, lotions, cleansers, and shampoos. As a non-ionic surfactant, it reduces surface tension between oil and water phases, enabling the formation of stable emulsions that prevent separation. This allows for smooth textures and even distribution of active ingredients. In cleansing products, it contributes to micelle formation for effective removal of residues without harsh stripping. Its solubilizing properties help disperse hydrophobic materials like fragrances into aqueous bases, supporting clear formulations in toners and sprays. Overall, it enhances product performance by improving mixability and stability across diverse cosmetic systems.

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

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Surfactant
Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.
Cleansing agent
Removes dirt, oil, and impurities by lowering surface tension and forming micelles, enabling soils to be lifted and rinsed away from skin, hair, or teeth.
Solubilizing agent
Helps incorporate oils and fragrance into water-based formulas by forming micro-solutions, enabling clear sprays, toners, and micellar products.

Benefits

Supports stable emulsions in creams and lotions for smooth application.

Facilitates gentle cleansing by lifting dirt and oils in washes.

Enables solubilization of oils and scents in water-based products.

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 using emulsified moisturizers or lotions daily.
Those preferring PEG-free products due to ethoxylation concerns.
People seeking effective yet mild cleansers for face or body.
People with highly reactive skin sensitive to surfactants.
Users of toners or sprays needing clear, non-separating formulas.
Individuals avoiding potential impurities from manufacturing.

Safety Notes

  • Deemed safe for cosmetic use by expert reviews when properly purified.
  • Low comedogenic potential, unlikely to clog pores.

Frequently Asked Questions about PEG-30 Stearate

What is PEG-30 Stearate used for in skincare?

It acts as a surfactant to emulsify, cleanse, and solubilize ingredients in lotions, cleansers, and toners.

Is PEG-30 Stearate comedogenic?

It has a comedogenic rating of 0, indicating low risk of pore clogging.

Are there safety concerns with PEG-30 Stearate?

Safety panels consider it safe in cosmetics, with focus on purity to minimize impurities.