PROPERTIES Doubles the absorption of vitamin C compared to formulations with conventional proteoglycans. Long-lasting effect: Sustained effect, intelligently releasing active ingredients to induce the synthesis of vitamin C and its own proteoglycans. Illuminates the skin from the first moment and throughout the day. Delays the oxidation of vitamin C. SUITABLE FOR All skin types. Recommended for men and women over 35 years of age. HOW TO USEIt can be used day and night all year round.DAY: Low intensity: ½ amp Skin Complex+ + Vital-Age Cream SPF 15 Medium intensity: Proteum Serum + ½ amp Skin Complex+ High intensity: Proteum Serum + ½ amp Skin Complex+ + Vital-Age Cream SPF 15NIGHT: Medium intensity: ½ amp Alfa-Peeling or Reg 8/15 High intensity: ½ amp Alfa-Peeling or Reg 8/15 + ½ amp Skin Complex+ or KRONO-AGE SerumCOMPOSITIONSKIN COMPLEX MartiDerm® Firmness and elasticity contains: 5% Proteum 89+ Proteoglycans 3.0 Biological sunscreen: protector against the harmful effects of UV radiation 15% vitamin C Antioxidant 2 0% Complex 5% vitamins: vitamin Vitamins A and E Anti-free radicals Vitamin F Nutrition Vitamin B5 Softness and luminosity