The Balance concept focuses on protecting the skin’s barrier by improving hydration of which layer?

• A. Stratum corneum hydration
• B. Dermis thickness
• C. Epidermal basal layer
• D. Hypodermis

Answer: (A)

Improving hydration of the stratum corneum protects the skin’s barrier. The stratum corneum is the outermost part of the epidermis and acts as the primary moisture barrier, composed of dead cells embedded in lipids. When this layer is well hydrated, its lipid matrix stays supple, reducing transepidermal water loss and helping the skin resist irritants and external stress. The other layers—dermis for structural support, epidermal basal layer for new cell production, and hypodermis for fat storage—do not directly govern the barrier against moisture loss in the way the stratum corneum does.