Helena Laboratories 

MAX-ACT, C-ACT, K-ACT, G-ACT – Helena offers a full line of Actalyke ACT tubes, including traditional glass bead, kaolin, celite plus new MAX-ACT. MAX-ACT uses a blend of celite, kaolin and glass bead. Factor XII has been found to be multi-species in nature and may not be fully activated by-one type of activator. By using a cocktail of activators, MAX-ACT provides maximal activation of Factor XII resulting in greater heparin specificity and exceptional linearity.