He writes:
Pluronic 17R4, it turns out, is one of a family of chemicals made by BASF. Opti-Free RepleniSH uses a different chemical made by BASF, Tetronic 1304. Both are surfactants - substances that act on the surface of chemicals (typically water). Though they have many roles, they're often used to help dissolve oils or proteins, and you can probably find surfactants among the ingredients of household cleaners and detergents.
While I assume the Pluronic in Clear Care is essentially there as a cleaning agent, the one in Opti-Free RepleniSH apparently also bonds water to the surface of silicone contacts, making them more comfortable. That's probably why Alcon describes the combination of the Tetronic and another, generic surfactant as a
While I assume the Pluronic in Clear Care is essentially there as a cleaning agent, the one in Opti-Free RepleniSH apparently also bonds water to the surface of silicone contacts, making them more comfortable. That's probably why Alcon describes the combination of the Tetronic and another, generic surfactant as a
