Collagen is found naturally in human skin layer for scaffolding our skin structures. it provides support, and gives the young firm/smooth skin. when collagen is produced, there is a complex series of events that involving the vitamin c. the production of collagen will be disrupted. that is why vitamin c is added along with collagen injections. benefits : - the basic function of vitamin c, for proving whole body whitening purposes and anti oxidant . - collagen is a fibrous protein, important in supporting tissues, skin, organ, tendons, ligaments and etc. - as replenishment where collagen reduces when aged. - reduces fine lines, wrinkles, pigmentation and minor scars. - maintains the production of cartilage and joints. - improve elasticity of skin,