N-Acetylglucosamine(NAG)
• IUPAC name I β-D-(Acetylamino)-2-deoxy-glucopyranose
• Structure I A monosaccharide derived from glucose having amide bond between glucosamine and acetic acid
• Natural ingredient, the monomeric unit of the polymer chitin
• Obtained from the shells of crustaceans
• Sweet taste and high stability at high temperature (up to 204oC) & broad pH range in water

A key structural molecule in human body
1. Skin beauty
Skin hydration and anti-wrinkle effect Improvement of skin elasticity with good absorption ability
2. Joint care
Improvement of joint function Maintaining young locomotivity More effective than glucosamine with better bioavailability
3. Gut health
Improvement of gut structure by facilitating synthesis of gastrointestinal tract possessing good absorption ability