been using Cosmedia ATC for many formulations never seen issues until recently. ingredients are:
Acrylamide / Sodium Acrylate Copolymer (and) Paraffinum Liquidum (and) Trideceth-6
We've put it with small (really small-0.05%) amounts of ascorbic acid and ferulic and we see over time or exposure to high temps a disturbing browning. has anyone used this thickener or one like it before, or have any idea what chemistry is causing this?