If you see a course you like the look of, just ask them! But please be aware of marketing tactics, if you have read on an internet forum that a particular product is best, why does it say this? Could it be that the forum is controlled by the distributors of that product!!! Do not believe everything you read just because it is a forum! Make your own mind up, all our products are good quality. You should not be using cheap products from the Far East usually purchased on E bay, you may be risking your client’s skin and nails.