I have read a lot about the harmful effects of PPD and definitely am trying to stay away from the stuff. But, I still like to color my hair. I thought there wasn't a solution but I found one. I havent tried the product you're thinking of, but I highly recommend the one I've been using. It's called Love Your Color by Cosamo. It's PPD, ammonia, and peroxide free, and so easy to use. It comes in a lot of shades and lasts for about 6-10 washes. Although that seems often, it's worth it because you're not dealing with the chemicals. If you want more info check out their website CoSaMo. Hope this helps!