In most cases, blemished skin is caused by a disturbance in the production of sebum and increased hornification. The sebaceous glands constantly produce sebum, which is simply put fat. This is brought to the surface of your skin, protecting it from moisture loss and external influences such as UV rays or cold. Sebum production is therefore an important protective mechanism for your skin. When this mechanism is out of balance, the skin produces an excessive amount of sebum. The lower skin layers try to transport this sebum to the skin surface. This would not be a problem if the dead skin cells would disappear at the same time. But this does not happen because of the increased hornification. Thus, the sebum remains trapped in the sebaceous gland, which is the perfect breeding ground for the so-called acne bacteria. This causes pimples to form, which often hurt and do not disappear for a long time. 

Blemished skin is out of balance and must be brought back into it. Anyone who now thinks that it is useful to apply drying cleansing and care products is mistaken. When the skin is dry or dehydrated, it reacts by producing more sebum. The goal is clear: it seeks to replenish the skin with oil and moisture. Therefore, at that moment, exactly the opposite of what you want to achieve happens. Conversely, you're only making it worse. 

To rid an impure forehead, nose and chin of pimples and blackheads, you need natural cosmetics that cleanse, strengthen and moisturize your skin.