... bag, 1kg/bag, or made as customer 's requirement 100% collagen powder abstracted from fish scales and fish skinMolecular Weight <1000Dal Our ... below 1000Da, It's easy and good for body and ski absorption.Continous taking collagen supplement, you will look much younger ... e.g. fatigue, poor sleep, poor memory, prematurely senile3,Adapt for crowd of Skin roughness,much spots,wrinkles,poor elasticity,low ...