Overview Who It's For How To Use Key Ingredients Serum Collagene Natif is a unique firming, pore tightening serum formulated for more oily or thick skin types. Helps to support dilated and open pores by stimulating collagen for firmer skin. Slightly mattifying and helps control oil. Ideal for combination to oily skin types with enlarged pores due to loss of collagen. Choose this serum over Serum Dermopore if enlarged pores are due to aging skin rather than excessive oiliness.  After cleansing and toning, apply several drops to the desired treatment area. Allow to dry briefly before following with hydrating serums and cream. Soluble Collagen: Locks in moisture and protects the skin barrier from water loss  Full Ingredients WATER (AQUA), SOLUBLE COLLAGEN, SODIUM CITRATE, PHENOXYETHANOL.