Filorga Skin Structure Firmness Redefinition Serum 1oz, 30ml Filorga Skin Structure Firmness Redefinition Serum has the following features: Infused with its triple-action formula, it tautens facial contours, while restoring the structure and density of youthful skin. Features NCTF and a peptide collagen acid that boosts the production of skin support fibres to increase firmness. Targets the cells responsible for increasing density that visibly plumps up areas of the face that appear hollow. Thanks an active ingredient with a "stretch" effect, it instantly tightens the skin structure and redefines facial contours. Suitable for all skin types.