I started Super Amino 23 about 2 years ago. I have had an issue for over 20 years with mouth sores that I always felt was some sort of auto-immune dysfunction. I started taking 5 Amino 23 tablets two times per day and within a few months the sores were completely transformed. After a year and a half, I thought I would try a different, less expensive Super Amino supplement. I compared the types of Amino Acids in both bottles, and they were identical, so I went with it. Within a month, my sores were coming back and my hair was getting brittle and growing slower. It was crazy! I have been back on Super Amino 23 for 6 weeks now, and sores are transformed again, and my hair is so much thicker and healthier. I am a Super Amino 23 Super Fan!