How does the skin absorb the ingredients in skin care products?
2022-04-12
Many girls do skin care in a godly spirit, similar to their religious beliefs. We firmly believe that the more and more expensive skin care products we use, the better our skin will be. Dozens of skin care products are piled up at home, and in the morning, sunscreen, serum, lotion, lotion, face cream, eye cream, mask, etc., must be applied several times a day.
Is it really correct to use multiple skin care products every day?
uncertain! Since everyone's skin is different, the effects of skin care products also overlap. Although there are many skin care products that can be applied to the face, what you need is okay, but what you don't need is not only wasteful, but also causes a serious burden on the skin. Blocks pores, leads to excess nutrients, and leads to breakouts.
In addition, the skin needs a certain process to adapt to the skin care products. Indiscriminate use of skin care products, it is more likely to make the skin sensitive skin, especially irritating skin care products, it will lead to the deterioration of the overall skin environment. Therefore, everyone needs to use different skin care products according to their skin condition.
For example, until the age of 25, unless your eye skin is too dry, you don't need to use eye cream, and there are products that provide moisturizing. If your skin is not too dry, just use lotions and creams instead of moisturizing masks. Anti-wrinkle and anti-aging skin care products have to be used after the age of 25, too early is meaningless. The effect of the essence is different, but generally you can only choose what you need. You don't have to use the essence too much, it will make the skin on your face over-nutrition.
Generally speaking, skin care products are divided into basic skin care products and functional skin care products. The so-called basic skin care products refer to moisturizing, moisturizing, sun protection, cleansing, etc., but other functional skin care products such as whitening, anti-aging, and acne removal should be selected according to individual needs. The essence of skin care is to regulate the state of the skin, not to change the environment of the entire skin.
No matter how expensive or useful your skin care products are, it's best to choose what works best for you. Whether it is basic skin care products or functional skin care products, absorption efficiency is inseparable.
So how does the skin absorb the ingredients in skin care products?
To understand how the skin absorbs skin care products, let's start with a brief introduction to the structure of the skin. Human skin is a highly organized, heterogeneous and multilayered tissue. It forms an effective protective layer and barrier. It consists of epidermis, dermis and subcutaneous tissue from outer to inner three layers.
The epidermis can be divided into several layers morphologically, the outermost layer is the stratum corneum, and the lower layer is called the active epidermis. The epidermis is a barrier that prevents substances from invading, and the stratum corneum is composed of dead keratinocytes and has a dense structure. Its main function is to prevent water evaporation and foreign matter intrusion. This is why people with thin cuticles are especially prone to allergies. This means that foreign tissue can easily penetrate the skin and cause an allergic skin reaction.
The skin is a defense organ, and most of the time it is in a direct defense state, but after the technical upgrade of skin care products, it can absorb some of the ingredients.
There are two main methods of skin absorption. One is direct infiltration from the epidermis into the dermis or subcutaneous tissue. This is the so-called epidermal pathway, and it is the main way that skincare products are absorbed through the skin. The other is to penetrate the dermis and subcutaneous tissue through subcutaneous appendages (hair follicles, sweat glands, sebaceous glands).
1. Skin care products directly penetrate the epidermis and absorb
The intact skin epidermis has properties similar to lipid membranes, allowing fat-soluble skin care ingredients to penetrate into the skin in a non-dissociated form, although dissociated ingredients are generally considered difficult to penetrate and absorb. The main resistance to the absorption of skin care ingredients comes from the stratum corneum. Skin care ingredients are divided into two types through the stratum corneum. One is a skin care ingredient that penetrates and diffuses into the translucent membrane of keratinocytes, and the other is an ingredient that diffuses into the skin through the gaps between the stratum corneum cells. Generally, fat-soluble skin care ingredients pass through the cell membrane pathway, and polar ingredients mainly pass through the intercellular space of the stratum corneum.
2. Skin care ingredients are absorbed from the skin appendages
There are two types of this absorption. One is through the sebaceous system, which is because the roots of the hair are surrounded by hair follicles that open up on the surface of the skin with funnel-shaped depressions called pores at the openings. Most sebaceous glands are open to hair follicles, except for some ducts that open on the surface of the skin, and the pores are filled with keratin scales and sebum. Therefore, fat-soluble skin care ingredients can penetrate into the hair follicles and sebaceous glands through pores, and then enter and absorb the dermis and subcutaneous tissue through the outer root sheath of the hair follicle or the gland cells of the sebaceous glands. For water and simple electrolytes, the follicle-sebum system is wider than the intact cuticle.
The other is absorption through sweat glands. The openings of apocrine glands are larger than the hair follicles. Skin care ingredients penetrate into the skin through apocrine glands. Eccrine sweat glands open to the skin surface through tubes, and water-soluble skin care ingredients can penetrate into the dermis through these pores, but in small quantities.
I think everyone has some idea of how the skin absorbs skin care products. Finally, the absorption rate of skin care products, the effect of oil-soluble ingredients is basically better than that of water-soluble ingredients.
Is it really correct to use multiple skin care products every day?
uncertain! Since everyone's skin is different, the effects of skin care products also overlap. Although there are many skin care products that can be applied to the face, what you need is okay, but what you don't need is not only wasteful, but also causes a serious burden on the skin. Blocks pores, leads to excess nutrients, and leads to breakouts.
In addition, the skin needs a certain process to adapt to the skin care products. Indiscriminate use of skin care products, it is more likely to make the skin sensitive skin, especially irritating skin care products, it will lead to the deterioration of the overall skin environment. Therefore, everyone needs to use different skin care products according to their skin condition.
For example, until the age of 25, unless your eye skin is too dry, you don't need to use eye cream, and there are products that provide moisturizing. If your skin is not too dry, just use lotions and creams instead of moisturizing masks. Anti-wrinkle and anti-aging skin care products have to be used after the age of 25, too early is meaningless. The effect of the essence is different, but generally you can only choose what you need. You don't have to use the essence too much, it will make the skin on your face over-nutrition.
Generally speaking, skin care products are divided into basic skin care products and functional skin care products. The so-called basic skin care products refer to moisturizing, moisturizing, sun protection, cleansing, etc., but other functional skin care products such as whitening, anti-aging, and acne removal should be selected according to individual needs. The essence of skin care is to regulate the state of the skin, not to change the environment of the entire skin.
No matter how expensive or useful your skin care products are, it's best to choose what works best for you. Whether it is basic skin care products or functional skin care products, absorption efficiency is inseparable.
So how does the skin absorb the ingredients in skin care products?
To understand how the skin absorbs skin care products, let's start with a brief introduction to the structure of the skin. Human skin is a highly organized, heterogeneous and multilayered tissue. It forms an effective protective layer and barrier. It consists of epidermis, dermis and subcutaneous tissue from outer to inner three layers.
The epidermis can be divided into several layers morphologically, the outermost layer is the stratum corneum, and the lower layer is called the active epidermis. The epidermis is a barrier that prevents substances from invading, and the stratum corneum is composed of dead keratinocytes and has a dense structure. Its main function is to prevent water evaporation and foreign matter intrusion. This is why people with thin cuticles are especially prone to allergies. This means that foreign tissue can easily penetrate the skin and cause an allergic skin reaction.
The skin is a defense organ, and most of the time it is in a direct defense state, but after the technical upgrade of skin care products, it can absorb some of the ingredients.
There are two main methods of skin absorption. One is direct infiltration from the epidermis into the dermis or subcutaneous tissue. This is the so-called epidermal pathway, and it is the main way that skincare products are absorbed through the skin. The other is to penetrate the dermis and subcutaneous tissue through subcutaneous appendages (hair follicles, sweat glands, sebaceous glands).
1. Skin care products directly penetrate the epidermis and absorb
The intact skin epidermis has properties similar to lipid membranes, allowing fat-soluble skin care ingredients to penetrate into the skin in a non-dissociated form, although dissociated ingredients are generally considered difficult to penetrate and absorb. The main resistance to the absorption of skin care ingredients comes from the stratum corneum. Skin care ingredients are divided into two types through the stratum corneum. One is a skin care ingredient that penetrates and diffuses into the translucent membrane of keratinocytes, and the other is an ingredient that diffuses into the skin through the gaps between the stratum corneum cells. Generally, fat-soluble skin care ingredients pass through the cell membrane pathway, and polar ingredients mainly pass through the intercellular space of the stratum corneum.
2. Skin care ingredients are absorbed from the skin appendages
There are two types of this absorption. One is through the sebaceous system, which is because the roots of the hair are surrounded by hair follicles that open up on the surface of the skin with funnel-shaped depressions called pores at the openings. Most sebaceous glands are open to hair follicles, except for some ducts that open on the surface of the skin, and the pores are filled with keratin scales and sebum. Therefore, fat-soluble skin care ingredients can penetrate into the hair follicles and sebaceous glands through pores, and then enter and absorb the dermis and subcutaneous tissue through the outer root sheath of the hair follicle or the gland cells of the sebaceous glands. For water and simple electrolytes, the follicle-sebum system is wider than the intact cuticle.
The other is absorption through sweat glands. The openings of apocrine glands are larger than the hair follicles. Skin care ingredients penetrate into the skin through apocrine glands. Eccrine sweat glands open to the skin surface through tubes, and water-soluble skin care ingredients can penetrate into the dermis through these pores, but in small quantities.
I think everyone has some idea of how the skin absorbs skin care products. Finally, the absorption rate of skin care products, the effect of oil-soluble ingredients is basically better than that of water-soluble ingredients.
