Arkansas Esthetician Practice Exam

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What effect does dimethicone copolyol have in sunscreens?

Increases effectiveness of preservatives
Makes products feel soft
Increases product density
Provides a silky feel

The correct answer is: Makes products feel soft

Dimethicone copolyol is a type of silicone used in various cosmetic formulations, including sunscreens. It is particularly valued for its ability to enhance the sensory feel of products. When included in sunscreens, it lends a smooth and luxurious texture, making the formulation feel softer and more comfortable on the skin. This sensory benefit is crucial for user experience, as individuals typically prefer products that glide on easily and feel pleasant during application. Additionally, the other options, while they may seem relevant, do not directly relate to the primary function of dimethicone copolyol in sunscreens. For instance, increasing the effectiveness of preservatives is not a known characteristic of this ingredient. Likewise, while it may influence density to some extent, the main purpose of dimethicone copolyol is more closely aligned with improving the soft, silky feel and overall user experience in formulation.