It's the newly launched tinted serum in shade 3-4 light medium. It's opened but in new condition not used. I mistakenly bought the wrong shade and again had to buy the right one which is 2-3 light. If you're someone who doesn't like makeup or don't know how to do it but just want that dewy glow, this is for you. it's very light weight just like a serum and non detectable on skin. I'm a sensitive girlie and no it doesn't show any side effects on skin. Best thing I've purchased till date!!!