I would like to know if collagen that is collagen peptide food grade powder form that is brewed with water can be mixed in the lotion in the formula? Will it spoil the formula easily? (eg
Soy Lecithin must be hydrogenated first because it will cause stability problems) There is
สารกันเสีย in the formula already, but it's natural. I'm afraid that I won't be able to control it. because I read somewhere that Powder type. If you can't use it all, keep it for use. Will it lose shelf life? Thank you.