★★★★☆
My mom has had her life-long psoriasis almost disappear from taking N-Acetyl Glucosamine (N-A-G). I read that it was recommended for autoimmune diseases such as Crohn's and Rheumatoid Arthritis. She has had psoriasis, psoriatic arthritis, and digestive issues for years. After 4-5 months of 1400mg 2xs a day, her digestion is much better and her psoriasis is almost gone. She will keep taking it, to see if the joints improve over time. She started seeing an improvement in 3-4 weeks. I hope this helps someone else!