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Value SizeRecommended Doctor CreatedTherapy For Your Eyes®Immediate Long Lasting ReliefSterile Multi-Use BottleWith Osmo-Correction®Hypotonic & Electrolyte BalancedRestores Eyes Natural Balance®TheraTears® unique hypotonic and electrolyte balanced formula replicates healthy tears.Now you can have the benefits of a preservative free solution in a bottle. TheraTears® is preservative free in the eye. TheraTears® uses a unique preserving ingredient that turns into pure oxygen and water on eye contact.Clinically Proven Formula:Replicates Healthy TearsPreservative Free In The Eye Uses:As a lubricant to relive dryness of the eye.As a protectant against further irritation of the eye.For temporary relief of burning irritation and discomfort including exposure to wind or sun.