There are 23 different forms of collagen, including three main types: type I, II and III collagen. Type I collagen is the precursor of collagen fibrils. It is found in abundance, along with type II and III collagen, in the fibrous stromal matrix of our bones, tendons and skin. Up to 95% of the collagen in the dermis is type I and III collagen. Biocyte uses VerisolTM I and III collagen, which is the only source of collagen scientifically proven to be able to repair and restore collagen levels in the body. Collagen Express® combines vitamin C and VerisolTM collagen. Vitamin C is recognized for its ability to stimulate collagen production. Biocyte Collagen Express® capsules (skin collagen) is a food supplement with a high collagen concentration (2.5 g per 6 capsules) for smoothed skin and contains vitamin C which contributes to collagen formation (to ensure normal skin function). Titanium dioxide free. Proven effectiveness* of the VerisolTM collagen active ingredient. Effects: FINE LINES FILLED : 20% reduction in wrinkles around the eyes DEEP WRINKLES REDUCED : 65% increase in collagen level SKIN MORE TONED : 18% increase in elastin *Scientific study on Verisol collagen vs Placebo, 2.5 g per day, for 8 weeks, 57 people.