I will start by telling you the four types of skin, that is the normal, dry, oily and combination and afterwards i will explain in details in the article below.

NORMAL SKIN
Firstly what is Normal Skin:

Normal’ is a term widely used to refer to well-balanced skin.

The scientific term for well-balanced skin is eudermic. The T-zone (forehead, chin and nose) may be a bit oily, but overall sebum and moisture is balanced and the skin is neither too oily nor too dry.

NEXT IS DRY SKIN

so what is dry skin?

As a result of the lack of sebum, dry skin lacks the lipids that it needs to retain moisture and build a protective shield against external influences. This leads to an impaired barrier function. Dry skin (Xerosis) exists in varying degrees of severity and in different forms that are not always clearly distinguishable.

Meanwhile more women suffer from dry skin than men and all skin gets dryer as it ages. Problems related to dry skin are a common complaint and account for 40% of visits to dermatologists. 

In addition dry skin can feel tight and rough and look dull.

OILY SKIN
‘Oily’ is used to describe a skin type with heightened sebum production. This over production is known as seborrhea.

The causes of oily skin

To Clarify oily skin tends to have blemishes.

A number of issues trigger the over production of sebum:

• genetics
• hormonal changes and imbalances
• medication
• stress
• comedogenic cosmetics (make-up products that cause irritation)

COMBINATION SKIN
Combination skin is, as the name suggests, skin that consists of a mix of skin types.

So what is combination skin?

An oily T-Zone (forehead, nose and chin) and dryer cheeks indicate the so-called combination skin.

so in conclusion a combination skin is the skin types vary in the T-zone and the cheeks. The so-called T-zone can differ substantially – from a very slim zone to an extended area.

In additional

• an oily T-zone (forehead, chin and nose) 
• enlarged pores in this area perhaps with some impurities
• normal to dry cheeks