My review and opinion:
I loved using this product. Was very lucky to get 2 generous big 10 ml samples. So it lasted me for a while. I used it every evening under my usual night cream. I can tell my skin is brighter, looks younger and healthier. The texture is a dream.
Brighten and Hydrate Duo Set: C E Ferulic and Hydrating B5 for Normal and Dry Skin