Nerd is doing something completely different and it works. Instead of using harsh anti-bacterial chemicals they're using stuff like yogurt, rosemary and sulfur to keep your face clear. Instead of wiping out all bacteria, because some bacteria is good and you actually need it, they're targeting only the bad bacteria. This stuff won't give you any of the typical acne treatment side effects and it actually works.
The only downside is that Nerd products are VERY expensive. The 3 step system will run you about $200. Look out for discount codes and sign up for their mailing list as they regularly offer 25%-40% off codes.