Unfortunately most sensitive skins have unknowingly added to their own dilemma.   Once a person realizes he/she is having a sensitive skin issue, they start trying other lines, one by one.  We suggest that as estheticians we encourage that client to abstain from 'products' until their skin gets healthy.  A healthy skin is without sensitivity, has good color, maintains a healthy moisture level at all times, can tolerate most products and has a good blood return. 

Our goals aren't easy, but that's why they come to us.  Good Luck!