LEVEL 1

Formulated for mildly dry skin that needs occasional hydration, especially if using Retinol. 

LEVEL 2

Formulated for moderately dry skin that often needs moisture. Skin may feel tight, occasionally rough from dryness, especially if using Retinol.

LEVEL 3

Formulated for dry skin needing frequent moisture attention. Skin may feel taught and uncomfortable, occasionally flake and feel rough, particularly when using Retinol. 
 

LEVEL 4

Formulated for very dry skin that can’t get enough moisture attention, needing constant hydration.
Typically, skin in winter, high altitude, dry conditions, or when using Retinol.