It's true. Check it out for more info at www.peelaway.com . That is one place where, more often than not, your answer will come from the guy that owns the company. Since he does have a few other things to do, it may take a little while longer than some to answer but when he does, it's right. But he still answers faster than many DIY sites.
Actually, he also posts here occasionally. It's how he checks up on the market, I guess. Since it's usually on the weekend when he does, that shows me how much he loves his job and his product. Yes, I do like and respect him and his company.