The difference between water-in-oil sunscreen and oil-in-water sunscreen, which one is better?

Sunscreen is used by many girls, especially in summer. What is the difference between oil-in-water sunscreen and oil-in-water sunscreen? Which is better, oil-in-water sunscreen or oil-in-water sunscreen?

The difference between oil-in-water sunscreen and oil-in-water sunscreen

1. The emulsions are classified according to the difficulty of dispersing the emulsions in water or oil. The water-in-oil type is easy to disperse in water, while the emulsions that are easy to dilute in oil are the oil-in-water type.

2. According to the conductivity measurement method, the conductivity of water is greater than that of oil. The conductivity close to that of water is the water-in-oil type, and the conductivity close to that of oil is the oil-in-water type.

3. Dyeing method: the water-in-oil type can make water-soluble dyes diffuse and dissolve, while the oil-in-water type emulsion can make oil-soluble dyes diffuse and dissolve.

4. Filter paper wetting method: take a drop of emulsion, drop it on the filter paper, and spread it quickly. If there is a small oil droplet in the center, it is a water-in-oil type, and if it does not spread, it is an oil-in-water type.

5. Currently, some skin care products on the market will indicate the dosage form on the packaging. If there is no marking, you can also distinguish it from the name. Most of those with the words "ointment" or "cream" are "oil-in-water" products, while some with the words "lotion" or "emulsion" are generally "water-in-oil" products. Therefore, when choosing skin care products or cosmetics, you should make your choices based on each person's specific skin type so that the product can achieve its maximum effect.

Which is better, oil-in-water sunscreen or oil-in-water sunscreen?

1) Oil-in-water sunscreen

Products such as creams and lotions contain oil and water, but common sense tells us that oil and water cannot be mixed together, otherwise they will separate into layers. How can they be mixed together to be stable and not separate? Therefore, emulsifiers are needed to make emulsified creams and lotions. Depending on whether water or oil is on the outside, they can be divided into water-in-oil type and oil-in-water type. That is, an oil-in-water cream puts the water on the outside and wraps the oil droplets. The reverse is true for water-in-oil type. For oil-in-water sunscreen, its waterproofness is worse than that of water-in-oil sunscreen. But the skin feels good and refreshing without being greasy. Of course, as the SPF increases, the product will generally become more and more oily. Oil-in-water sunscreens are suitable for a variety of environments and skin types depending on their sun protection values.

2) Water-in-oil sunscreen

The advantage of oil-in-water sunscreens is that they are more water-resistant. Unlike oil-in-water sunscreens, they are not easily affected by sweating and cause the sunscreen material applied on the face to become "mottled". But the downside of oil-in-water sunscreen is that it is a bit greasy. However, many oil-in-water sunscreens are now made into silicone-in-water products. Compared with oil-in-water products, silicone-in-water products feel lighter and more refreshing on the skin. It is also worth recommending. These products are perfect for use during the summer. It has a high sun protection value and is also relatively water-resistant and sweat-resistant.

Okay, that’s all about the introduction of the difference between oil-in-water sunscreen and oil-in-water sunscreen. I think you all understand it.