Skin Penetration Pathways Diagram

A clean scientific diagram showing the three pathways molecules use to penetrate skin: transcellular (straight through cells), intercellular (between cells through lipids), and transappendageal (via hair follicle). Cross-section view of skin layers shown in warm cream and terracotta tones. Arrows indicate each route. Elegant, minimal infographic style on a dark background with soft pink accent colors.

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