What it is
Maltose is a simple sugar composed of two glucose units that attracts and holds water, making it useful as a humectant in cosmetic formulas. In sunscreens it is typically included at low levels in the water phase to support hydration and a smooth, conditioned skin feel. It is highly water-soluble and compatible with a wide range of formulations.
Safety & warnings
Maltose is a simple sugar that is generally well tolerated topically and is not associated with irritation or sensitization at cosmetic use levels. It is water-soluble and noncomedogenic. It is not a recognized fragrance allergen.
Origin & sourcing
Maltose is a natural sugar produced by the enzymatic breakdown of starch; cosmetic-grade material is typically derived from plant starch sources such as corn through hydrolysis.
Questions everyone asks
Why is maltose added to sunscreen?
It acts as a humectant, drawing in and holding moisture to give the formula a hydrated, smooth feel.
Is maltose natural?
Yes. It is a naturally occurring sugar usually produced from plant starch by enzymatic breakdown.