When it comes to treating acne, blackheads, or just dull skin, one hero ingredient stands out,Salicylic Acid Serum. But not all serums are made equal. Some come packed with fragrances that might smell nice but wreak havoc on sensitive skin. That's where fragrance-free Salicylic Acid Serums come into play. If your skin throws a tantrum with the slightest irritation, this article is for you....