Absorption
"After cleansing my face I wait 10 mins then apply this at night before sleep , after applying retinoid it takes a while to absorb which is completely normal and fine but after gently rubbing it on my cheeks it doesn't absorb completely and still a small wet peeling of retinoid layer will remain like a dead moist skin peel on lips after shower! So the retinoid does fully absorb after massaging gently"