Refresh Contacts Contact Lens Comfort Drops instantly moisturizes and soothes dry eyes caused by soft and rigid gas permeable contact lens wear. Utilizing a unique, long-lasting lubricant, every application creates a liquid cushion that comforts and protects. This preparation contains no chlorhexadine, no thimerosal, and no other mercury-containing ingredients. Active Ingredients: Carmellose sodium 5mg/ml. Inactive Ingredients: Purite. 15 ml