Humectant ingredient

Leucine

An essential branched-chain amino acid used as a humectant that helps maintain skin hydration as part of the skin's natural moisturizing factor.

Also known as: l-leucine

humectantamino-acid

Benefits

  • Attracts and retains moisture
  • Supports the skin's natural moisturizing factors (NMF)

No known watch-fors.

At a glance
CategoryHumectant
IrritancyLow
Beginner-friendlyYes
Pregnancy safeYes
In your routine

Generally well-tolerated and easy to layer.

Found in 24 products
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Products with Leucine

Hydr8 B5 IntenseSerum
Medik8
Hydr8 B5 Intense
Reedle Shot 100Serum
VT Cosmetics
Reedle Shot 100
Sake Skin Lotion High MoistureToner
Kikumasamune
Sake Skin Lotion High Moisture
Cica Daily Soothing MaskMask
VT
Cica Daily Soothing Mask
Aquaporin CreamMoisturizer
Cell Fusion C
Aquaporin Cream
Reedle Shot 300Serum
VT
Reedle Shot 300