facetheory - Viktoriyah review for Regenca C20 20% Stabilised Vitamin C Serum

Unfortunately however, whilst I had no adverse reaction to this product, it's had no discernable effect either. It's an oil based serum but is very much a thick oil by way of consistency, takes a long time to absorb and never seems to fully dry down. Due to the viscosity, only a very small amount is needed to cover the face which adds to the products longevity, but keep in mind that you may need to change the order in which you apply your products to compensate for it effectively being a face oil rather than a serum.