Contact lenses need to stay moist to maintain their shape and prevent it from tearing. Once they start absorbing moisture from the natural tears meant for your eyes, you will experience dryness and itching soon after.
With all-day hydration for both eyes and contacts, you can enjoy total eye relief with each drop.
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2Kawahara M., et al. Journal of the Eye 21, 11:1561-1564, 2004
3Chang, W-H: Liu, P.Y.; Lin, M.H.; Lu, C-J.; Chou, H.Y., Nian, Applications of Hyaluronic Acid in Ophthalmology and Contact Lenses. Molecules 2021, 26, 2485.