However, they typically generate large quantities of unwanted products. (sciencedaily.com)
However, breaking the carbon - carbon bonds, in order to shorten the molecular chains, is harder; extreme temperatures are needed, and often yield unwanted products. (sciencedaily.com)
I have tried lots of so - called natural or organic products, but none of them have ever delivered (and often contain silicone and other unwanted products). (juicebeauty.com)