Ingredient glossary
Trehalose
On your shelf ✓What Trehalose does for your skin, who it suits, and what to watch for.
INCI: Trehalose
In short: Trehalose delivers hydration and antioxidant support, suits most skin types, and the evidence behind it is emerging.
- What it does
- Hydration, antioxidant support
- Best for
- Most skin types
- Evidence
- Emerging
The molecule
The Glow take
Genuinely worth a spot in your routine.
When your goal is deep, lasting hydration, Trehalose pulls genuine weight, though the proof is still catching up to the excitement. Gentle enough that most skin types can reach for it.
— Maya
What it does
- hydration
- antioxidant support
emerging evidenceCosmetic and biochemical literature describe trehalose as a water-structuring sugar that supports moisturization and protection in stress conditions.
On a label: usually effective at 1-5%.
Who it's for, and who should skip it
Tends to suit
- dry
- dehydrated
- all
Approach with care
No specific group flagged to avoid it.
- Clogs poresLow
- Irritation riskLow
How it fits each skin type
- DrySuits
- CombinationSuits
- OilySuits
- SensitiveSuits
Where it fits in your routine
Plays well with
- humectants
- antioxidants
Trehalose, answered
Is Trehalose safe during pregnancy?
Yes. Trehalose is considered safe to use during pregnancy and breastfeeding. As with anything, if you are unsure it is worth a quick word with your doctor or midwife.
Who should avoid Trehalose?
No specific group is flagged to avoid Trehalose. It is well tolerated by most skin. Still, introduce anything new one product at a time.
What concentration of Trehalose actually works?
Trehalose tends to do its job in the 1 to 5% range. Much lower and it is likely underdosed.
This, for every label you own
One ingredient is easy. A full label is where it gets confusing. The Ingredient Decoder reads any product and tells you the honest truth, ingredient by ingredient.