Naturium Salicylic Acid Serum 2% ($20)
Dr. Lal likes this affordable serum for “those with acne or for those who want gentle exfoliation.” Another advantage: “It also has a very elegant product application.” Target.com reviewers concur, with one buyer saying: “I have struggled with acne my whole life, this little blue bottle has completely changed my acne…my blackheads are even clearer. This is my holy grail.”