It is important to know well your type of skin to be capable of choosing well the good product adapted to this one and obtaining optimum results. Some external aspects such as: hormonal changes, ageing, feeding, stress, ingredients in your products, pollution, can bring your skin to be changed in the course of time.
The normal skin is a skin which introduces no irregularity and visible imperfection. It is soft in touch, she has a complexion which is rather uniform and it has a level of moisturising and of sebum is balanced. His grain of skin is regular and his pores are not much visible.
The dry skin is a skin among which the sebaceous glands (gland which produce the sebum) are less active. This one has tendency to fire at random, go red and it is finer and more sensitive. Besides, she lacks suppleness and softness and dryness returns the more visible wrinkles.
The mixed skin has an unstable balance because it has an excess of sebum on the zone " T " (forehead, nose, chin) and it has cheeks and temples with tendency to be drier. This favours an irregular grain of skin and of the dilated and visible pores while cheeks introduce a normal skin with a matt and uniform aspect.
The fatty skin is characterised by a hypersecretion of sebum which gives a shining and oily aspect to the skin. She has a texture which is more thick and the pores which are dilated.
A skin with acnéique tendency is a skin which shows a propensity to develop comedoes (commonly called black points) and buttons. It is often fatty and bright because the sebaceous glands produce an excess of sebum there which has the effect of obstructing the conduit of the sebaceous glands, what makes easier the proliferation of bacteria.
The acne develops generally on the face, in the neck, on shoulders, the thorax and the back, and its strictness varies of light, softened in strict.
At the age adult, it is possible to determine a persistent acne, called late acne. She is characterised by the presence of comedoes and of the microcysts which continue since adolescence. But are also possible be added of inflammatory lesions often in link with hormonal cycles. Finally at any age is possible manifest itself an inflammatory acne with the presence of papules (red buttons) and of pustules (buttons with a white head) or comedoes.
*L' acne is sometimes merged with the rosacée.
Rosacée skin :
The rosacée is an inflammatory illness which returns the hypersensitive skin and in that blood vessels dilate and cause the appearance of redness. She affects mainly the central zone of the face (cheeks, nose, chin, forehead). She completely differs from the teenage acne and causes more important lesions such as bumps, papules and pustules which gives to the skin a harsh and irregular appearance.
Couperosée skin :
The couperose is a skin disorder which is characterised by redness linked up with vessels dilated under the epidermis which become visible and create fine red lines (it is what is called télangiectasies). When vascular anomaly evolves, this redness can become permanent It is especially on cheeks and wings of the nose. The redness of the skin can conceal them, but the red lines reappear generally when the redness becomes blurred.
The mature skin is not only a wrinkled skin, it is mainly characterised by a cutaneous slackening among which the signs which appear in surface are the reflexion of the various changes which occur in the different layers of the skin! It is in general from 45 years which are begun receiving the first signs because decelerated cellular renewal, what entraine a reduction of fibroblastes producers of ourcollagenand of ourélastine.