SynerPI®, in combination with BDK, is an effective alternative as TPO is reclassified as a reproductive toxicant by the EU
SynerPI® is a photoinitiator synergist for Improved UV/LED Curing of Gel Nail Polish
SynerPI® can be used with most LED based photinitiators and with both Norrish Type I and Norrish Type II photoinitiators. Materials that improve photoinitiation efficiency are known as synergists. They are known as synergists since they are not actually photoinitiators themselves but improve the kinetics of photoinitiated polymerization. Traditional synergists are amines and exhibit synergy by coupling with the photoinitiator and lowering the activation energy of the photoinitiation reaction and/or by acting as an antioxidant.

