Sorry didn't notice this was going to the group, plus that, the answer doesn't exactly match the question.. Yes, I did follow instructions, the car should be in the sun for perhaps an afternoon to give the treatment time to soak in. It should then be wiped down and cleaner applied, then that wiped down. Treatment should be repeated perhaps twice a year, more if your leather is in really bad condition. I encountered no adverse effects. Go to the site and see what the experts say. Les Huckins wrote: > Yes, made it more supple, it was trying to crack and getting stiff. Go to > www.leatherique.com, I think that's the page, there's a nice write-up and some club > endorsements. > > Les