Oh dear seems like i have caused a bit of a stink on here with a simple question! I am a qualified nail tech and simply went to a local beauty wholesalers and found some nsi gel, which i have heard talked about on here a fair bit so thought i would buy a few of the products to test the gel against my current gel (calgel) I am especially after a strong, tough gel to wear over white tips. I did ask in the well known beauty wholesalers what products I needed and the lady replied 'too be honest I dont know, i deal with hair and am not in the know of any nail products, but what i can tell you is that if you dont see something here that you want we can order it directly from nsi for you' I would also like to add that i was not asked if i was an account holder, had any proof of qualifications etc. Calgel on the other hand will not supply anyone with their products unless they have trained them in calgel and have an account open with them, I will do some research out of here as to how the nsi works, its not that I want to take on nsi its simply because I wish to experiment with other gels etc to see what the competition is like and also as I have said before it would be nice to find a gel which is that bit stronger than the clear calgel to wear over white tips.