What causes acne on your back and chest and bad acne

Collagen is a fibrous insoluble protein found in skin tissue that keeps skin elasticity and strength. This normal body substance is injected underneath the skin to raise sunken scars, by stretching and filling them out, to the level of surrounding skin. However, the effects of this treatment are only temporary, usually lasting three to six months, thus requiring supplementary injections at additional charge. It is also important to note that bovine collagen may cause allergic reactions to some individuals.
With regard to topical acne creams, Vitamin A (retinol) can be effective, although a proportion of the population contract dry and flaking skin when they use it. In fact that is how it works: by promoting flaking off of the top skin cell. It is basically a topical form of the oral isotretinoin, but not as strong. It is not the perfect treatment, and like most acne treatments, it will suit some more than others.
• Bacterial infection. When your pore is clogged by the sticky mixtures formed by sebum and dead skin cells, it makes the bacteria to get stuck in your pores too. To survive they feast on the sebum can can cause infections.
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