Genetics can also affect how your immune system works. When confronted with bacteria, your skin might erupt in painful red lumps called pustules while someone else might just get a blackhead. Or maybe your friend has sensitive skin that breaks out more often than yours does. Your family history has a lot to do with the type of skin you have and how it looks and feels.
Why is this so important? Because layers of dirt, grime, and other stuff can create a barrier between any products and the skin. Simply put, the product won’t impact the skin as it won’t be able to penetrate the overlying layer of dead skin cells, dirt, sebum and god knows what else! I love a good analogy…so imagine trying to paint a wall that’s filthy!!! Pointless.
How to Handle It: If you've tried the usual anti-acne ingredients, like salicylic acid and benzoyl peroxide (which, we should warn you, rarely work for this), you should consider paying your dermatologist a visit. "You may need a cortisone injection or an oral medication, like an antibiotic, in addition to topical formulas," says Zeichner. He's also a fan of a prescription topical medication called Epiduo Forte Gel, since, he says, it's been shown to be effective at controlling severe acne without the help of oral treatments.
Acne treatment that you apply to the skin: Most acne treatments are applied to the skin. Your dermatologist may call this topical treatment. There are many topical acne treatments. Some topicals help kill the bacteria. Others work on reducing the oil. The topical medicine may contain a retinoid, prescription-strength benzoyl peroxide, antibiotic, or even salicylic acid. Your dermatologist will determine what you need.