TREHALOSE
Is TREHALOSE safe for seborrheic dermatitis?
Trehalose is generally a lower-concern ingredient for seborrheic dermatitis. In skincare it acts as a humectant that helps a formula hold water, not as an antifungal or a treatment for the condition.
No direct human seb derm or exact-name Malassezia evidence was found. Its sugar chemistry should not be converted into a claim that it feeds scalp yeast when used topically in a finished formula. Judge the complete product by comfort and stop if irritation repeats.
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What is it?
A quick identity check, separate from the seb derm guidance above.
01 / 05- Material type
- Humectant and moisturising ingredient
- Ingredient family
- Disaccharide sugar
- Cosmetic function
- Humectant, Moisturising
What is TREHALOSE used for in skincare?
Trehalose is a disaccharide made from two glucose units. It is used as a humectant and moisturising ingredient to help manage water in a formula and support a softer skin feel. It may also help protect product components from drying stress, but it is not a treatment active.