What does Trehalose do for skin?

Trehalose is a hydrator used in K-beauty for Hydrates, Protects cells from dehydration stress, Antioxidant. The "resurrection sugar" that keeps desert plants alive through drought — and keeps dehydrated skin plumper, longer.

Is Trehalose safe during pregnancy?

There is limited safety data on Trehalose during pregnancy. Exercise caution and consult your healthcare provider before use.

What skin types is Trehalose best for?

Trehalose is particularly well-suited to dry, sensitive, mature skin.

What ingredients pair well with Trehalose?

Trehalose layers well with hyaluronic acid, glycerin. These combinations are common in K-beauty routines and have no known negative interactions.

How strong is the evidence for Trehalose?

We rate the clinical evidence for Trehalose at 3/5 — moderate. 1–5% typical.

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Trehalose

3/5— Moderate Evidence

Medically reviewed by ChokChok · Updated April 15, 2026

The "resurrection sugar" that keeps desert plants alive through drought — and keeps dehydrated skin plumper, longer.

What It Does

HydratesProtects cells from dehydration stressAntioxidant

Deep Dive

Trehalose is a disaccharide found in extremophile organisms (desert plants, tardigrades, yeast) that survive drastic dehydration. In skincare, it's a humectant that also protects cell membranes and proteins from dehydration-related damage. J-beauty brands especially love it for hydration claims backed by this "extremophile" story. Real evidence behind the marketing.