I have taken other amino formula’s in the past and stopped because I saw , nor felt any difference in my workouts or in how I felt! So I have not taken any amino products of any kind in years.. But since I have started taking your product I have seen a big change in my work outs, my muscle development and have felt a definite sense of wellbeing!! I’m 63 my workouts are longer , strength has increased &recover much quicker! Thank you for making Advanced Amino Formula !