Review title is Keep chilled [SEP] It’s a great vitamin C ampoule but you need to use it within 3 mths. I keep it in the fridge to extend the life of this serum. It’s slightly thick like oil and has a very pale yellow hue to it. The scent of this stuff is faint and subtle but doesn’t smell bad. It’s kept in a dark glass bottle to prevent light when effecting the serum. It absorbs into the skin well and it has helped with my skin complexion. Great stuff!