- Jul 13, 2017 -
A good collagen solution in water is clear and transparent, such as water is oily, indicating that collagen contains fat;
The quality of pure color is pure, and the granules are even. If the color is yellow, it shows that the purity of collagen is not enough;
High quality products have a faint smell of fish. No faint smell or smell is too heavy, all that collagen raw material may exist problems.
Hangzhou Nutrition Biotechnology Co., Ltd.
Address:No.355, Hongshan ave, Xiaoshan district, Hangzhou, Zhejiang,China (Mainland)
Contact us:Sophia Wu