Hello
We have been using BG Products for a very long time and can only say that in my opinion are the best on the market.
we use the above regularly and have some very good results.
as with all products no matter who make them they rely on chemicals to do the job.
my advice is use this product with a GOOD extractor system or outside and don't stand behind the vehicle i have 6 techs plus myself in the workshop and we have never suffered.
regards
Nev