The key difference between sodium hyaluronate and carboxymethylcellulose is that sodium hyaluronate shows excellent moisturizing and mucus-layer adhesive properties, whereas carboxymethylcellulose provides excellent bio-adhesive characteristics and it can also increase the tear-retention time. Sodium hyaluronate and carboxymethylcellulose are important chemical substances in lubricating eye drops for dry eyes. These are valuable ingredients in eye drops. […]