This tub is full of an amino acid called Acetyl L-carnitine. To find out what Acetyl L-carnitine does in the body; why your friend, naturopath or coach recommended it and to find out how much you should take; google it. Cut and paste this word “Acetyl L-carnitine” into google, pubmed, infotrieve or any unbiased information database. Do your own independent research. Come back and buy ours because we worked really hard to get a really high quality, pure and clean form.