Vitamin C-Collagen Skin Serum with Black Elderberry, which is specially formulated to provide a revitalizing effect while tightening the pores on your skin, helps revitalize your skin and give it a more youthful appearance. Enriched with the powerful combination of vitamin C and collagen, this serum moisturizes your skin while providing a firmer, brighter and healthier skin appearance. It is suitable for daily use and you can see the difference in your skin when used regularly.