Montana Cosmetology Licensure Practice Exam

Question: 1 / 400

Which ingredient is commonly found in moisturizers for hydrating skin?

Petrolatum

Glycerin

Glycerin is commonly included in moisturizers due to its effective hydrating properties. It is a humectant, which means it attracts water to the outer layer of the skin, helping to keep it hydrated. This quality makes glycerin particularly beneficial for preventing dryness and maintaining the skin's moisture balance.

In contrast, petrolatum, while often used for its occlusive properties to create a barrier on the skin, does not actively hydrate. Alcohol can have a drying effect on the skin, as it can strip away natural oils and moisture. Talc, typically used for its absorbent properties, does not contribute to hydration and is more associated with preventing moisture rather than adding it. Therefore, glycerin is the most effective ingredient in this context for hydrating the skin.

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Alcohol

Talcm

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