On labels or in the reviews you read that such a cream can moisturize and nourish. And you wonder, is there a difference in hydration and nutrition? That generally means "to nourish the skin"? Maybe under the skin nutrition it refers to the same moisture?
I've consulted with your dermatologist, who in his time was very helpful in the treatment of a skin rash on the body (By the way, you will have to write about it, and how much it cost me everything; spoiler - fun is not cheap, and to some extent I understand those who are trying to self-medicate due to lack of financial capability).
It turned out that between moisturizing and nourishing creams huge difference. Both in structure and in functionality.
I'll try to describe the difference in accessible language.
A little about the structure of the skin
Leather, as we know, consists of three main layers: the epidermis, dermis and subcutaneous fat. The outer layer, the epidermis, is composed of five layers, the uppermost of which - horn.
We used to think that the stratum corneum is composed of dead cells that, we had enough. But everything is much more interesting.
In the bottom layer of the epidermis, the basal, is a hatchery for the production of living cells - keratinocyte. These cells produce keratin structural proteins and perform other important functions of the body.
With time, keratinocytes "rise" to the upper layers of the skin. And the higher the unfortunate circumstances for them - are deprived of the nucleus and cytoplasm. In the stratum corneum and enter the cytoplasm of keratinocytes, i.e. without core "Dead". A dead keratinocytes, called corneocytes, from which there were only keratin and lipids (fats).
Cemetery corneocytes, roughly speaking, is the stratum corneum. Corneocytes in the stratum corneum packed very tightly in about 20 layers, and between - Water and lipids. All together, the skin forms a protective layer that protects us against dust, dirt, harmful microorganisms, ultraviolet and still from whatnot.
We approached the most interesting - water and lipids in the stratum corneum
Their concentration may vary. Moreover, changes are taking place around the clock.
moisture deficit - need such tools to not only increase the volume of water in the epidermis and dermis, but also retain moisture. With this handle moisturizers.
The deficit of lipids - the funds needed to present in the composition of lipids and promotes the synthesis of lipids in the skin. Deal with it nourishing creams.
If the skin lacks moisture, it becomes dry and what is even worse - dehydrated (important in winter). Peeling, micro-cracks and a thoroughfare for pathogens.
Perhaps the most dense in the myth of beauty industry - do not use moisturizers winter. I know that at least my readers for a long time do not believe in this myth. But I repeat: Leather - a powerful body, one of its objectives - to keep our body temperature by any means. In winter, she will do everything so that we do not become covered with ice. What does it mean? It will raise the temperature, and the water begins to evaporate. That's how we spend moisture, and it is necessary to fill.
If skin lacks lipids (fatty acids and ceramides), the situation is even worse than a lack of moisture. Here, you and atopic dermatitis, and eczema, or even psoriasis. The disadvantage of making the skin less ceramide protected against moisture loss. The lack of lipids - a typical pattern in the time of menopause, in this case, not nourishing creams that are recommended and are required to maintain.
What are the ingredients in creams moisturize?
1) marine collagen, aloe extract and Vaseline: form a film on the skin, do not allow moisture to evaporate;
2) collagen, glycerin, and high molecular weight hyaluronic acid: attract water molecules and keep them. You have to be careful with glycerin if you are in a room with low humidity, it will start pulling water out of the skin and make her land;
3) Centella and low molecular weight hyaluronic acid: are composed cosmeceuticals, in the conventional product can not be bought to regulate the water flow in the dermis;
4) Peptides: able to overcome the epidermis and to work with the deeper layers of the skin, stimulate the production of hyaluronic acid.
What are the ingredients in creams nourish?
1) vitamins D and E, because they are soluble;
2) palmitic acid: contained in apricot kernel oil, avocado, cocoa butter, and much more where. Recovery of lipids in the epidermis works better lanolin;
3) omega 3-6-9 acids: in addition to the recovery of lipids is also a good antioxidant.
Nourishing Cream does not have to be dense in texture. On the contrary, the modern means of light in texture and better penetrate the epidermis. Dense film in a nourishing cream, on the contrary, "relaxes" the basal layer, and renew the cells begin to last longer. And this leads to hyperkeratosis, pigmentation and aging.
Details of nutrients and moisturizers, especially for winter maintenance, will tell in the next article. Naturally, not all of the ingredients listed above, I did not mention more about moisturizing factor. If it is interesting - put the "thumbs up" and subscribe to the channel, so as not to miss in the film.
