At least in Brazil most suppliers tell they offer hair stylers ingredients already neutralized. But I've come to find out they are never 100% neutralization. So, I've been trying to hair stylers for the moment and would like to know how do you guys neutralize Polyquaternium-11 and Belsil P1101. If you have experience with any other hair stylers ingredient and it must be neutralized, please share!
Research & Development Manager Brazil at Alfaparf Milano.
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