
Believe it or not, I had acne since I was in the 4th grade. Childhood friends, brother, mother and father will attest to this. My dad will probably say that he misses those days when I was chubby and pimply but that's because he can't handle his store customers from Inglewood asking me if I am ready to get down with chocolate. Then we would often get into a discussion of Kimora Lee and whether or not I abide by her philosophy in men. But I digress.
I've tried almost every product out there (e.g. Proactiv, Murad, Accutane, Retin-A). The list could go on and on but I think these are some of the more popular products or ingredients. Retin-A or retinoic acid is also commonly used to treat the appearance of wrinkles so that's probably the best product for more mature skin. Otherwise, follow these steps for at least 30 days and I will guarantee that your problem skin will improve. But first, here is a cheat sheet on various common ingredients.
Benzoyl peroxide: this comes in 2%-10% strength. This product is meant to dry up pustular pimples. It's very strong and very drying so ONLY use this as a spot treatment. When I wash my face, I feel for any pimple-in-the-making and dab on that area before bed. If you're home all day, I would dab on the area 3 times a day. It'll suck dry the pimple and the red bump-to-be will most likely not come to fruition.
I like
Clean and Clear's Persa Gel. There are other products with Benzoyl peroxide but I prefer the one from Clean and Clear. Although the ingredient is the same, this one seemed to work the best. I'm using Clearasil B.P. 10% now to spot treat but I will probably switch back.
Salicylic Acid: this is less harsh so can be used all over the skin. Be careful though because some people are allergic to this. Try on a small amount on your neck and see if you react.
Triclosan: this is an anti-bacterial agent in soaps, mouthwashes, toothpaste, and more. My bro who is a dentist was surprised to see this ingredient in my roommate's Noxema facial cleanser. The typical things regarding anything anti-bacterial abide to this ingredient: if over used, you will develop bacterial resistance. I actually am not a huge fan and I haven't really seen it be highly effective.
Ok, so what you should be looking out for is products that are labeled as NON-COMEDOGENIC. Basically, this means non clogging. Be aware that if you are acne prone, then you should make sure that all products you put on your skin should say this. For this reason, I am very hesitant to try products from other countries because they often do not have this extra testing to see whether or not it is non-comedogenic. You might find that some products not labeled as such do not clog your pores but to be safe, stick to this label. Neutrogena, Aveeno, Clean and Clear are non-comedogenic. So make up such as MAC, Origins, Lancome, etc, should be used with caution. Also, do not blindly trust the make-up counter folks. They may say it's non clogging but unless it's labeled that way, they really don't know. They might say something like it's "hypoallergenic" or "for sensitive skin" but that doesn't mean it won't clog your pores.
A simple regimen is listed below. It's best to go to a dermatologist but sometimes they prescribe their own labels (their own line of products) because that's also how they make their money. The dermatologist I worked for was also guilty of this. She had a line where she simply approved of the ingredients and stamped her name on it. If it's safe and easy for you to purchase their products (or if it makes you feel better psychologically) then use it. But it won't be the simplest or cheapest method. Proactiv is a good example. The ingredients are proven to work but it gets expensive after their monthly shipments. You'll have boxes of unopened bottles sitting at the corner of your bathroom by the time you finish your first box and soon you'll be selling this on ebay.

Keep it simple
Treatment: Retin-a all over and benzoyl peroxide to spot treat. A strong retin-a content can only be prescribed but Neutrogena and other brands also have products with retin-a in it.
About once every 2-3 days, you should also use a scrub. This will help slough off any dead skin cells that may be sitting on your skin. Try
Deep Clean Gentle Scrub.
I didn't mean to let this post get so long, but I guess I had a lot more to say regarding acne than I thought! I blame years of battling with this plague.... Future posts will assess other products for acne prone and sensitive skin.