Question

Why are moisturizers and sunscreens that are oil-in-water emulsions preferred over those that are water-in-oil emulsions?

1) They provide better hydration to the skin
2) They are more effective in protecting against UV rays
3) They have a lighter texture and are less greasy
4) They are easier to apply and absorb into the skin

Answer 1

Moisturizers and sunscreens that are oil-in-water emulsions are preferred over water-in-oil emulsions because they provide better hydration to the skin, are more effective in protecting against UV rays, and have a lighter texture.

Step-by-step explanation:

Moisturizers and sunscreens that are oil-in-water emulsions are preferred over those that are water-in-oil emulsions for several reasons:

1. They provide better hydration to the skin: Oil-in-water emulsions are more moisturizing as they provide an oily barrier which reduces water loss from the outermost layer of the skin.
2. They are more effective in protecting against UV rays: Sunscreens in oil-in-water emulsions have a smoother texture that allows for more even application, ensuring better coverage and protection against UV rays.
3. They have a lighter texture and are less greasy: Oil-in-water emulsions have a lighter texture and are less greasy compared to water-in-oil emulsions, making them more comfortable to use.