Skin Anatomy and Fundamentals

Layering order is a practical factor that affects how products feel and perform together.

The skin barrier is the outer layer that helps reduce water loss and supports protection from external stressors.

Moisturizer choice depends on texture preference and your comfort/balance goals.

A good cleanser removes daily buildup while keeping the skin comfortable and balanced.

Toner is optional; its value depends on the formula type and your routine goals.

Knowing your skin type makes product selection simpler and helps you build a consistent routine.