What is the difference between moisturizing and hydrating?

The difference between moisturizing and hydrating

For example, just like a bottle, hydrating is to pour water into the bottle, and moisturizing is to cover the bottle and lock the water up to prevent it from leaking out.

Similarly, in skin care, we should replenish water before moisturizing. You can use hydrating emulsion to replenish enough water to your skin first, and then use moisturizing cream to consolidate the protective film of your skin, so that you can lock the water.

Differences in composition

Common hydrating ingredients:

There are mainly hyaluronic acid, polyols, collagen, natural moisturizing molecules, amino acids and so on.

For young skin, hydrating is more important than moisturizing!

Common moisturizing ingredients:

Include ceramide, various vegetable oils, mineral oil, synthetic fat, beeswax, etc. Products that usually contain a lot of oil are mostly moisturizing, such as lotions and creams.

When choosing products, you can also choose according to the changes of seasons. Water content can be reduced in summer, and products with high oil content should be used in winter.

Different needs of different skin types

Mixed oily skin: both moisturizing and refreshing.

Too much oil comes out of the skin because the lipids connected between keratinocytes are destroyed, and the stratum corneum can't lock water, so the oil comes out abnormally and the oil inside is dry.

Choose oil-free and light-weight products to strengthen and replenish skin moisture.

Dry skin: powerful moisturizing function.

Dry skin not only needs a lot of hydration in the early stage, but also needs strong moisturizing in the later stage, and it also needs proper oil production.

Choose products with high hydrating and moisturizing ingredients. The nutritious texture can build a protective film for the skin, effectively lock in moisture, and continuously provide nourishment and repair for the skin.

Sensitive skin: first hydrate and relieve.

Sensitive muscles are most likely to have problems because of dryness, which will cause water shortage sensitivity. At this time, it is necessary to increase the work of hydrating and moisturizing.

Choose products that focus on simple needs and avoid irritating formula products, such as alcohol, fruit acid and salicylic acid.

In addition to daily care, we should also pay attention to the selection of products with high moisture retention, and we can also use spray to replenish water, which can not only play a good role in replenishing water, but also relieve calm and sensitive skin.

Then after we understand the difference, we should understand the reason why the skin is short of water, because it is not only skin care products that can truly "moisturize"!

Causes of skin water shortage

1. Seasonal climate is dry-dry allergy

During the season change, the skin will not only be dry and peeling, but also be red, swollen and allergic.

2. Sebum membrane disappeared

What is sebum membrane? ! It is the first and most critical layer of skin self-protection, because the damage of sebum membrane leads to easy evaporation of water and acne, and 80% of skin problems are caused by it.

3. The stratum corneum is damaged

In addition to the sebum membrane, the damage of stratum corneum is also a major culprit leading to dry skin. Can what we usually call hydration really penetrate into the skin? ! That will be a day! !

The place in our skin that needs hydration most is the stratum corneum, and water absorption can only reach the stratum corneum. So when the cuticle is injured, it will cause the skin to become dry and sensitive.

Problems caused by skin water shortage

Lack of water on the skin will cause rough skin, dull complexion, dry cutin and imbalance between water and oil. ................................................................................................................................................

Keratin drying

For the lack of water in the skin, the most obvious manifestation is that the skin is dry, tight and easy to peel off. Especially in summer, although the weather is beautiful, it will make the skin drier!

When the skin is dry, it is easy to cause peeling. Many lovely people don't realize the lack of water until their skin desquamate. In fact, at this time, the skin is already in a state of serious water shortage, which leads to the dryness of the facial stratum corneum and the shedding of dead skin and dander.

Large pores

In addition to dry skin, lack of water can also lead to large pores, because dry skin keratin can not be metabolized normally, and hair follicles accumulate too much old waste keratin, which makes the skin rough and dry, thus blocking pores and causing skin problems with large pores.

Water-oil imbalance

When the sebaceous glands and sweat glands of the skin secrete moderately, and the skin is in a healthy and ideal state that is not greasy and dry, such skin pores are delicate, ruddy and smooth, and it is not easy to respond sensitively to external stimuli.

It is what we call perfect neutral skin, and all the skin care work we do is infinitely close to neutral skin!

The rest are all manifestations of water-oil imbalance. Dry skin is easy to lose water, oily skin has strong sebum secretion, and mixed skin is usually dry and oily.