What it means
The epidermis is made mostly of keratinocytes and is topped by the stratum corneum, the skin barrier. The dermis contains fibroblasts that make collagen and elastin, and most of the structural changes of aging happen there.
Topical products mostly act in the epidermis. Effects deeper in the dermis depend on how much of an ingredient gets through.
Also known as
- skin layers
- epidermis
- dermis
- skin structure
Go deeper at Vanu Health
Sources
General information, not medical advice. Talk to a clinician about any decision about your health.