Sucralose

Sucralose is a synthetic non-nutritive sweetener, created by chlorinating sucrose (table sugar). In cosmetic formulations, it functions as a skin conditioning agent, though its presence in skincare products is uncommon—appearing in fewer than 0.1% of formulations.Its role in skincare is largely secondary; it is not considered a primary active ingredient for addressing specific skin concerns. The ingredient is used primarily for flavouring in oral care products or as a minor component in formulations where sweetness is desired.

Sucralose is thought to work as a humectant—a substance that draws moisture to the skin and helps retain hydration at the stratum corneum (outer layer). However, its efficacy in skincare formulations at typical concentrations is not well established.The mechanism of action in cosmetic use differs from its role in food and beverages, where it functions as a sweetening agent. In skincare, any benefit is likely marginal and would be dependent on formulation concentration and interaction with other ingredients.

If using a product containing sucralose, apply as directed by the manufacturer. This ingredient is not a primary focus of most skincare routines and should not be relied upon as a key active for addressing specific skin concerns. Products containing it should be evaluated based on their other, more substantiated ingredients.

Sucralose is generally recognised as safe for topical use in cosmetics at typical concentrations. No significant adverse effects on skin are reported in the available literature.