3 Layer of Skin Structure & Basic of Skin Care Analysis, Skin is the largest organ of the human body. It is said that it reflects all internal function directly or indirectly. it is durable elastic and wrap an adult human body in 20 square feet of tissues.
It forms covering for the whole body and make difference between internal organs and outer atmosphere. Skin continues with a mucous membrane around the anus, urogenital organs, mouth, a nose too.

3 layer of skin structure
The skin thickness varies in different parts of the body like thinnest skin in under eye(0.3mm) and the thickest skin in the scalp(3mm).
This thickness depends on layers of skin especially on the subcutaneous layer which mainly consists of fats. In adult skin forms about 5% of total body weight. The skin has numerous furrows, depression & folds.

3 layer of skin structure
This folds and furrows of skin are different in every individual and not even identical twin has the same structure of this furrow and folds. The skin has barely noticeable pores for sebaceous and sweats secretion.
skin structure
Skin also contains hair follicles.
Healthy skin looks moist, soft, flexible and has slightly acidic PH (5.5 to 5.6)
Following are the 3 Layer of Skin Structure & Basic of Skin Care Analysis
A: EPIDERMISF
B: DERMIS
C: SUBCUTANEOUS OR HYPODERMIS
Let see, Discuss one by one 3 Layer of Skin Structure & Basic of Skin Care Analysis
A: EPIDERMIS LAYER
Number one is the epidermis layer out of 3 Layer of Skin Structure & Basic of Skin Care Analysis.
It is an outer layer of skin made up of stratified epithelial tissue which is continuously undergoing the process of keratinization.

EPIDERMIS LAYER
This layer is devoid of blood supply and gets all nutrient supply through flowing lymph in the intracellular space.
This layer ( 3 Layer of Skin Structure & Basic of Skin Care Analysis ) is again divided into 5 layers and from above to downwards they are as follow:
#1: Stratum Corneum
#2: Stratum Lucidum
#3: Stratum Granulosum
#4: Stratum Spinosum
#5: Stratum Germinativum
3 Layer of Skin Structure & Basic of Skin Care Analysis Epidermis layer
#1: Stratum Corneum
It is the outermost layer of skin also known as the horny layer. The cells of this layer are elongated and the nucleus is missing and completely keratinized & layer is completely dry and almost dead and has poor content of water in spite of that rich deposits of sulphur, fats and polysaccharides.
Get shade of continuously with washing and being rubbed off and gets replace at every 3-5 days.
#2: Stratum Lucidum
This is the second layer of epidermis present just under the corneum. it contains elongated cells and special protein substance which has power to refract light this possible because of eleidin, glycogen and oleic acid which make skin shiny, colourless, and impermeable for water and chemicals.

skin layer
#3: Stratum Granulosum
They contain one or two raws of elongated cells and on palm and soles, there maybe 2 to 4 layers of the cells. The nuclei of these cells gradually become smaller and look like small granule and the process of keratinization starts from this layer which grows upwards toward the corneum.
#4: Stratum Spinosum
the layer consists of 5 to 10 row of cuboid cells which gradually start flattening as they grow towards Granulosum. These cells contain a nucleus in addition it also contains special cells Langan’s cells which responsible for skin immunity.
#5: Stratum Germinativum
It is also known as stratum Basale which is the innermost layer of epidermis it rests directly next to the dermis. it consists of columnar cells and nuclei. It also contains few branches of dendritic cells and these dendritic cells are also known as melanocytes and responsible for the formation of melanin which is responsible for skin colour. The columnar cells are divided by mitosis to form upper layers of skin.
B: DERMIS LAYER
The dermis is also known as true skin which is mostly composed of a fibrous substance called collagen and elastin which are bound together by an interstitial substance.
3 Layer of Skin Structure & Basic of Skin Care Analysis, the second layer is the dermis.
These fibres are thin in the papillary layer and thick in the reticular layer.

DERMIS LAYER
The reticular layer also contains lots of yellow elastin fibre which not only give skin elasticity but also strength.
As the age advances, this fibre gets atrophy and cause the skin to sag responsible for fine lines.
Dermis again divided into 2 layers from above to down this are as follow:
#1: Papillary Layer
#2: Reticular layer
Description:
#1:Papillary Layer
This is the very first layer to the dermis, consists of the cone-shaped projection of elastin tissue project towards epidermis known as papilla.
This papilla contains capillaries and nerve fibre endings called tactile corpuscles.
This tactile corpuscle was responsible for a different type of sensations.
Some amount of melanin is also present in this layer. yellow elastin fibre in this layer gives skin elasticity and thickness.
#2: Papillary Layer
This layer contains a thick layer of yellow elastin fibre and white fibrous tissue which varies in number in a different part of the body.
Other than that, it also contains lymphocytes, blood vessels, sweat gland, sebaceous gland, hair follicle, erector Pilli muscle and nerve fibres.
C: SUBCUTANEOUS LAYER
This layer consists mainly of fats and adipose tissue.
It varies from person to person according to their constitution as well as age, sex, general health of the individual. The thickness of adipose tissue varies in a different part of the body.

SUBCUTANEOUS LAYER
The fat is work as a reserve source of energy. This layer shrinks as we grow older and unable to support the skin gives rise to wrinkles.
Fat is a poor conductor of heat and helps to reduce heat loss through the skin and keep the body warm.
If you have any query regards 3 Layer of Skin Structure & Basic of Skin Care Analysis must be comment!