Which statement accurately differentiates between dehydration and dry skin, and how should a facial be adjusted?

• A. Dehydration occurs only in summer.
• B. Dry skin is lipid-deficient; dehydration is lack of water. Treat with humectants and occlusives, gentle cleansers, avoid harsh exfoliation, and tailor serums and moisturisers to restore moisture balance.
• C. Both are the same; treat with heavy oils only.
• D. Dry skin is lack of water; dehydration is lipid deficiency.

Answer: (B)

Dehydration means the skin is lacking water in the epidermis, while dry skin is deficient in lipids (the fats that form the skin’s barrier). This distinction matters because it guides how you adjust a facial. When the goal is to address dehydration, you focus on boosting water content and preventing loss: use humectants such as glycerin or hyaluronic acid to draw water into the skin, and pair them with occlusives like dimethicone or petrolatum to seal in that moisture. Choose a gentle cleanser that won’t strip natural oils, and avoid harsh exfoliation that can worsen water loss. Tailor serums and moisturisers to restore moisture balance, considering the client’s skin type and environment.

If the skin is dry, the emphasis shifts toward replenishing lipids and supporting the barrier (ceramides, fatty acids, cholesterol), though humectants can still help. The important point here is that dehydration and dry skin are different situations; dehydration isn’t limited to summer, they aren’t the same condition, and relying on heavy oils alone won’t resolve a lack of water.