Acne affects over one-third of the global population, during some point of their lives. Although people are more prone to acne during their teenage and subsequent years, adult acne is also commonly found in people up to their 40s. Acne is a condition where the oil secreting glands and the hair follicles in the skin get clogged. This results in the growth of bacteria in skin pores. This results in the formation of whiteheads, blackheads, pimples, cysts, and pustules, depending on the severity of the condition.Since the problem of acne is widespread, there are lots of over the counter acne medicines available in the market. The most commonly available over the counter acne medicines have benzoyl peroxide and salicylic acid. One must have surely heard of brands like Clean & Clear Persa-Gel, Oxy -10 or Clearasil. Most of the leading brands use either of these as their ingredients. These medications with benzoyl peroxide and salicylic acid are useful for people with mild acne. They are known to open up clogged pores and have some antibacterial effect. Whatever the different over the counter acne medicines may claim, it does take several weeks to see a marked improvement in the condition.For slightly severe acne, there are over the counter acne medicines available with sulfur and/or resorcinol. These products are known to be effective, though they do have a noticeable odor and color, meaning they are best used at night, rather than during the daytime. The best way to arrive at the right over the counter acne medicine is probably through the age old “trial and error method”. You can also find out from your friends or other family members about the various over the counter acne products available on the market. A dermatologist, or even a licensed beautician, could offer you good advice on the best over the counter acne medicine for you.