Store primer safely. It's very important to keep primer out of the reach of children. Each year children are injured when they accidentally spill primer on themselves or try to drink it. Be responsible with your tools. Keep them capped and secure.
All primers contain some type of acid.
These primers just contain different acids that don't create a burning sensation on the skin. The benefit they offer is they're non-corrosive to soft tissue. Remember, all primers can be safe, and all primers can be dangerous if improperly used. Don't kid yourself when it comes to safety. As with every professional tool of the nail technician, you should always avoid skin and eye contact.