I've been a loyal fan of Neutrogena's Oil Free Acne Face Wash since high school, but recently I was given a large sample of Peter Thomas Roth's Anti-Aging cleanser to use and wanted to share my thoughts.
Price: PTR's cleanser retails for $35 for 8oz vs. Neutrogena which you can find on sale for $5 for the same size
Active Ingredients: PTR's cleanser contains 1% Glycolic acid and 1% Salicylic acid vs. Neutrogena which contains 2% Salicylic acid
Odor: I found they both smelled the same, kind of a slight chemical smell with some very faint orange notes
Effectiveness: They both remove make-up and leave skin feeling clean and refreshed. Neutrogena contains a higher percentage of Salicylic acid which is a proven acne fighting ingredient, so if you're looking to clear up your skin, this is the product for you! PTR's cleanser contains a smaller amount of Salicylic acid, but it also contains Glycolic acid which is a chemical exfoliator. However, since you don't leave the cleanser on your skin for longer than a minute on average while washing your face, I'm not sure how much exfoliation actually takes place. Therefore, I don't think PTR's cleanser can do much in terms of resurfacing your skin.
Verdict: The winner of this challenge is Neutrogena! You can't beat the price, and the Salicylic acid content is comparable to that found in more expensive cleansers. PTR's cleanser is also very good, but I don't feel that it's worth the $35 price tag for the job that it does.