Oleth-10 Phosphate

What is Oleth-10 Phosphate?

Oleth-10 Phosphate is a synthetic anionic surfactant formed by phosphorylating Oleth-10, the ethoxylated form of oleyl alcohol derived from oleic acid in plant oils like olive. It falls into the phosphate ester category, primarily featured in rinse-off products such as shampoos, shower gels, and facial cleansers. Functionally, it reduces surface tension at the oil-water interface, enabling dirt, oils, and residues to be easily rinsed away. Its emulsifying action stabilizes mixtures of immiscible ingredients, preventing phase separation in lotions and creams. The phosphate group imparts mild detergency and foaming capabilities, producing a creamy lather that improves product texture and user experience without excessive stripping of natural skin lipids.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 2 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.
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

Enhances cleansing by effectively removing impurities and excess oils.

Stabilizes emulsions for smooth, consistent textures in lotions and cleansers.

Promotes rich foaming action in shampoos and body 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 seeking gentle, non-comedogenic cleansers for daily use.
Those with known allergies to phosphate esters or ethoxylated compounds.
Users of emulsified products like moisturizers needing stable formulations.
Individuals sensitive to anionic surfactants in high concentrations.
People preferring mild surfactants in rinse-off hair and body care.
Users preferring completely phosphate-free formulations.

Safety Notes

  • Considered safe for cosmetic use in rinse-off products at typical levels.
  • Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about Oleth-10 Phosphate

What is Oleth-10 Phosphate used for?

It serves as a surfactant and emulsifier in cleansers, shampoos, and lotions to aid cleansing, foaming, and stabilization.

Is Oleth-10 Phosphate safe for skin?

Yes, it has a low safety rating and is suitable for rinse-off cosmetics without comedogenic concerns.

Does it cause irritation?

It is generally mild, with low irritation potential based on cosmetic safety reviews.