Sorbeth-30 Tetraisostearate
What is Sorbeth-30 Tetraisostearate?
Sorbeth-30 Tetraisostearate is a synthetic emulsifier formed by reacting sorbitol, a sugar alcohol, with 30 moles of ethylene oxide to create sorbeth-30, then esterifying it with four isostearic acid molecules, which are branched fatty acids from vegetable sources. This structure yields a molecule with both water-loving and oil-loving parts, ideal for cosmetic use in rinse-off items like shampoos, body washes, facial cleansers, and makeup removers. As a surfactant, it reduces surface tension to help water spread, lift dirt, and create foam. As an emulsifying agent, it forms a protective layer around oil droplets in water, stabilizing mixtures to prevent separation and deliver smooth, consistent textures in light lotions or micellar solutions.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Supports effective removal of oils and impurities during cleansing
Promotes stable emulsions for even product consistency
Non-comedogenic, suitable for pore-friendly formulations
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Users of daily cleansers needing gentle oil emulsification | Those sensitive to ethoxylated ingredients |
| People with oily or combination skin for balanced washing | People preferring non-synthetic surfactants |
| Individuals seeking stable textures in lightweight lotions | Users with rare allergies to fatty acid esters |
Safety Notes
- Assessed as low hazard in cosmetic concentrations
- Minimal irritation potential in rinse-off products
Frequently Asked Questions about Sorbeth-30 Tetraisostearate
What does Sorbeth-30 Tetraisostearate do in products?
It acts as a surfactant to aid cleansing and foaming, and as an emulsifier to blend oils with water for stable formulas.
Is it safe for sensitive skin?
It shows low irritation potential, making it suitable for many, though patch testing is wise for sensitivities.
Does it cause breakouts?
It has a comedogenic rating of zero, unlikely to contribute to clogged pores.