How to use OZiva Bioactive Vitamin C30 Face Serum? January 13, 2026 08:23 Updated Take 3-4 drops of the serum.Gently pat onto cleansed face.Wait till fully absorbed by skin.*Use regularly for 8 weeks for best results. Related articles How to use OZiva Inner Glo Brightening Serum? How to use OZiva Phyto Ceramides+Collagen Builder - Ceramide Fizz? How to use OZiva Youth Elixir Anti-Ageing Face Serum? How to use OZiva Pro-Collagen Protein Peptides? How to use OZiva Advanced Hair Growth Serum?