I really like the essence, it is very moisturizing and leaves the skin soft and helps calm irritation. The serum is quite gentle and suitable for sensitive skin, but there is very little of it.
I enjoyed this duo and as someone with sensitive skin the retinol is very gentle. I do believe that I will finish the serum before the cream but I can continue to use the cream with other retinol products.
Haven't used it yet. Though I'd say, it's too pricey for just a 20ml serum.