Ennyaa, I'm taking a brand from a site called Elite tabs, I believe. I'm too lazy to run downstairs to check but I believe they only have one brand of marine protein. Darn, I have to check now as I'm curious! I was right. They come 90 to a bottle and it was about $7 per bottle. My nails are thriving and they kept splitting when I first got here two months ago. I think I'm going to continue with the protein because I can already see a difference in the strength of my hair. I'm going to be making sure I'm really nourishing my hair from the inside out.