Your hydration may be in vain? The truth about replenishing and moisturizing

It didn't take long for your face to get dry after hydration?

Excessive hydration makes skin worse?

Wrong moisturizing causes greasy face?

A large number of people don't understand the difference between hydrating and moisturizing

Or I don't know the principle of both

So much so that many times it is a waste of effort or counterproductive

Today, we start from the skin's own moisturizing principle

Tell everyone the truth about hydrating and moisturizing.

Generally speaking, the moisture replenishment at ordinary times is through the use of lotion, mask or spray, etc. Hydrates the skin's stratum corneum 。

Hydration increases the moisture content of the stratum corneum, and the skin will become Softer and brighter skin tone ； At the same time, when the stratum corneum contains sufficient water, Its permeability is increased , the nutrients contained in the subsequent "milk, cream, essence" and so on are also More easily absorbed by the skin 。

Is Genuine Leather Hydration a Gimmick?

Substance applied to the skin due to the dense structure of the skin's epidermis Wants to penetrate the dermis and It's not very easy 。 And, What is really dehydrated is the epidermis Therefore, the focus of hydrating and moisturizing is also to maintain the proper water content of the epidermis.

Moisturizing Yes Let the stratum corneum have a reasonable water content, and don't let the water lose too quickly.

In fact, healthy skin itself has a complete moisturizing system:

The dermis layer serves as the "reservoir" of the epidermis, with a water content of 70%, which can allow epidermal cells to Natural Moisturizing Factor (NMF) Like a "water pump", the dermal layer The water is sucked out and replenished to the epidermis (especially the cuticle).

And by Stratum corneum and sebum membrane Composed of Skin barrier Then can Prevent excessive loss of skin moisture 。

Therefore, the same is true for using moisturizing skin care products. The products should contain certain moisturizers (hygroscopic agents), oils (sealants) and emollients to help the skin " Absorb water "," keep water " The role of.

★ Hygroscopic agent : Helps to absorb moisture from the dermis layer to the epidermis layer, and can also absorb moisture from the air to the skin when the air humidity is high.

★ Blocking agent ： Forms an oil film and reduces water evaporation.

★ Emollient ： Leaves the skin smooth and soft.

Common ingredients of moisturizing skin care products:

★ Hygroscopic agent ： Glycerin (glycerin), sodium hyaluronate, butylene glycol, propylene glycol, etc. are mostly alcohols and polysaccharides.

★ Blocking agent ： Vaseline (petrolatum), mineral oil (liquid paraffin), various vegetable oils, etc., mainly lipids.

★ Emollient ： Lanolin, silicone oils, some alcohols and esters, etc.

In addition to that, The more cutting-edge technology is the use of biomimetics , focusing on the replenishment and integration of interkeratinocyte lipids, as well as the activation of skin cells. Selecting ingredients with biochemical activity needed by skin itself and adding them into moisturizing products, Enhance the skin's moisturizing power by mimicking the intercellular stroma , such as Ceramides, cholesterol, sphingolipids Etc.

There are also some ingredients that are not moisturizers, but can be applied externally Improve the state of the dermis layer and keep the skin hydrated , as Vitamin C and its derivatives, collagen peptides, lipoic acid Etc.

In addition to using moisturizing skin care products that suit you, the following aspects of moisturizing work are also very important:

① Protect the skin ： Do not damage the skin, do not excessively clean the skin, protect the health of dermis and epidermis, and give full play to the skin's own moisturizing ability.

② Adjust diet ：

③ Attention Ambient humidity ： In the dry season, humidifiers can be used appropriately.

④ Prevention Sun ： Reduces UV damage to collagen in the dermal layer.

All in all, owning Adequate epidermal interstitium 、 Stratum corneum with moderate water content ， Keep the epidermal layer intact and healthy To prevent skin moisture from losing too quickly, the ideal moisturizing state has been reached.