Isotridecyl Salicylate
What is Isotridecyl Salicylate?
Isotridecyl Salicylate is an ester of salicylic acid and isotridecyl alcohol, functioning primarily as a UV filter, emollient, and solvent in skincare formulations. It provides broad-spectrum UVB protection with moderate UVA absorption, while also offering moisturizing and skin-softening properties due to its emollient nature. Commonly used in sunscreens and moisturizers, it enhances product spreadability and stability without leaving a heavy residue.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
Sunscreen agent
Absorbs or reflects UV radiation to protect skin from sun damage.