I have used the following VH products in my daily beauty treatment for the last month. I layer on each product one after the other-in the morning & night., it’s a small amount of the liquid & it spreads smoothly overmuch face & neck. First: Multipeptide-helps produce collagen; followed by -anti ageing; Neurophroline; then Niacinamide -prevents pigmentation; Eye Contour-is very light & doesn’t puff the thin skin around the eyes; Hyaloronic are the last drops I put on to y face . My skin as been affected by sun for years, so this combo of serums seems to be ideal for it! Joan Gardener