hello beby.. im quite new here.. i frear your post it's quite intresting.. & i buy EUCERIN product.. but im confused which step should i go 1st.. since i buy too much.. 1. White Solution Gentle Cleansing Foam (i know this 1st) 2. White Solution Oil-Control Day Fluid SPF 30 3. White Solution Extra Treatment Serum SPF 10 4. White Solution Night Treatment Cream 5. Sun Mattifying Face Fluid SPF 50+ 6. Hyaluron Filler Eye 7. DermoPURIFYER Toner this Skin care that i buy ok i know the step.. but actuly i was confused between those two White Solution Oil-Control Day Fluid SPF 30 White Solution Extra Treatment Serum SPF 10 both got SPF mean for day used.. so which should i wear 1st? or how to used it?