Instant Detox Mask because it was what my skin needed the most. However, I do plan on picking up the other ones as well since this one has worked so well. I was actually lucky enough to meet the co-founder of Caudalie, Mathilde Thomas, a few months ago, which you can read more about here in a previous post.
This mask has made it onto my holy grail list so I made a repurchase during Sephora's VIB Rouge sale. I've honestly never see a mask that delivers results instantly as quick as Caudalie's Instant Detox Mask. If you haven't I'd head over to your nearest Sephora asap!