@sc614 may I ask why marine collagen? are they better? if you are concerned about its effect on dense breast tissue, would a yearly mammogram help you with your concern? I take just one scoop daily of vital proteins collagen peptides (bovine) just not to miss anything :). it is said that if we consume enough quality protein, usually from animal source, we'd get all the essential amino acids that we need since these protein will break down to amino acids anyway. I do take type II collagen as a pill form daily.