Under Kerapremium , we have 2 different formulas. Non formaldehyde/aldehyde , which is Kerapremium Liss, and we have Kerapremium Original BKT which does contain 2%. To compare with the other brand you mentioned that is a formaldehyde formula.
The Kerapremium website is being changed at the moment and we will be uploading all the other products we have available.
Any questions let us know.