I believe the product is a huge benefit for maintaining basic homeostasis, and the ease of which it provides support reflects quickly in your hair, nails skin and your joints. I think supplementing with bioavailable aminos is a smart move to promote optimal health. I just purchased 6 bottles in October of 2020, and I have put my wife and daughter on same and they both says “its a game changer”. I am a health professional having practiced chiropractic for 32 years and this is by far one of the better top notch supplement providers. All the best, Stan Throckmorton DC, DABCI