Isostearyl Lactate
What is Isostearyl Lactate?
Isostearyl lactate is a synthetic ester formed from isostearyl alcohol, a branched-chain fatty alcohol often sourced from vegetable oils, and lactic acid, produced via fermentation of sugars. In cosmetics, it belongs to the emollient category, commonly found in lip products, foundations, and creams. It works by mimicking natural skin lipids, providing a silky, non-sticky slip that allows smooth application and spreadability. This ingredient lubricates the skin surface, filling minor irregularities to create a smoother feel, while also aiding in the dispersion of pigments and reducing product tackiness. Its light molecular structure penetrates slightly without heaviness, making it suitable for various formulations where a dry-touch emollience is desired.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Provides softening effect by smoothing skin texture.
Acts as emollient to improve product glide and reduce moisture loss.
Supports skin conditioning for maintained flexibility and softness.
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 non-comedogenic emollients for daily moisturizers. | Those with known sensitivity to lactic acid derivatives. |
| Individuals with normal to oily skin preferring lightweight textures. | People experiencing irritation from ester-based emollients. |
| Makeup users benefiting from enhanced application in lip and face products. | Individuals preferring fully natural or plant-derived ingredients only. |
Safety Notes
- Rated low hazard by EWG with scores of 1.
- Deemed safe for cosmetic use by regulatory reviews.
Frequently Asked Questions about Isostearyl Lactate
What is Isostearyl Lactate used for?
Primarily as an emollient in cosmetics to soften skin and enhance product spreadability.
Is it safe for sensitive skin?
Generally low irritation potential based on safety assessments.
Does it clog pores?
No, with a comedogenic rating of 0.