Systane Hydration (30 PF vials) LensCase You can use it wet

You can use it wet or dry

If you have tried Hydration and like it

Never store your scleral lenses in preservative-free saline

if memory serves

SH is actually not supposed to be used an active ingredient at all

Systane Hydration (30 PF vials) LensCase You can use it wetHighlights Preservative free Active ingredients: polyethylene glycol, propylene glycol Contains sodium hyaluronate Box of 30 0. 7mL vials Rebecca's description Who is Rebecca? Systane + hyaluronate Systane Hydration is basically regular Systane plus hyaluronic acid (HA), otherwise known as sodium hyaluronate or (as they are saying) just plain hyaluronate. HA is a good thing, and seeing more and more US companies jump on that bandwagon is a good thing.