In a salon, when an artificial nail covering has achieved 90 percent polymerisation and has reached its intended strength, containing only very low levels of unreacted monomers, which is considered safe.
NailKnowledge
NailKnowledge
In a salon, when an artificial nail covering has achieved 90 percent polymerisation and has reached its intended strength, containing only very low levels of unreacted monomers, which is considered safe.
English 
Portuguese 
Spanish 
Vietnamese