Sodium Tocopheryl Phosphate

What is Sodium Tocopheryl Phosphate?

Sodium Tocopheryl Phosphate is a phosphorylated derivative of tocopherol, the chemical form of Vitamin E, rendered water-soluble through esterification with phosphoric acid and subsequent salting with sodium. This modification distinguishes it from oil-soluble tocopherol, enabling use in hydrous cosmetics such as serums, mists, and cleansers. It operates primarily by scavenging free radicals via hydrogen donation, thereby shielding sensitive formulation components from oxidative degradation. Beyond antioxidation, its amphiphilic structure supports emulsification by reducing interfacial tension between oil and water phases, while also influencing rheological properties to maintain product consistency. Typically produced synthetically from natural tocopherol sources, it integrates seamlessly into diverse formulations, enhancing shelf life and sensory attributes without compromising clarity or stability in aqueous systems.

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:

Antioxidant
Slows oxidation of oils, fragrances, and sensitive actives to improve shelf life and reduce rancidity or color change; sometimes also supports skin protection from oxidative stress.
Emulsion stabilizer
Improves emulsion robustness by preventing droplet coalescence and phase separation, often by thickening, structuring, or strengthening the interfacial layer.
Reducing agent
Causes reduction reactions, often used in hair perming.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
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.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

Provides antioxidant effects to help maintain product freshness and support skin barrier resilience.

Acts as a skin conditioner to promote softness and flexibility.

Stabilizes emulsions and controls viscosity for smoother, more reliable textures.

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 seeking stable Vitamin E benefits in water-based products.
Those with known allergies to tocopherol derivatives.
Individuals preferring lightweight, non-greasy antioxidant options.
People sensitive to phosphate-based compounds.
Users of sensitive-skin formulations due to its mild profile.
Individuals who have reacted to similar Vitamin E forms in patch tests.

Safety Notes

  • Rated EWG 1, indicating low overall hazard potential.
  • Non-comedogenic (rating 0) and generally mild for topical use.

Frequently Asked Questions about Sodium Tocopheryl Phosphate

What makes Sodium Tocopheryl Phosphate different from tocopherol?

It is a water-soluble phosphate ester salt, allowing use in aqueous products unlike oil-soluble tocopherol.

Is it suitable for sensitive skin?

Yes, it has low irritation potential based on safety assessments.

What roles does it play in cosmetics?

Primarily antioxidant, emulsifying, and viscosity controlling for better formulation performance.