the differences between occlusives, humectants and emollients on skin layer.

skin moisturizer barrier hydration moisture occlusives humectants emollients absorb water oil lipid ingredient nutrient layer ceramides hyaluronic acid cell types cross epidermis dermis comparison prevent seal loss draw stratum corneum mechanism difference vector dehydration dry penetrating hydrate skincare cosmetic aesthetic cosmetology surface infographic care healthy structure flat design lubricate biology dermatology white background differences font line brand diagram presentation advertising document drawing pattern screenshot cartoon circle poster art number logo banner layer