I started my skin care/ Korean beauty skin care journey last year as I was tired of hiding my acne as well as scars constantly with foundation and concealer. The first set Ive tried was COSRX snail mucin essence. I didn't like it that much as it was very tacky and had to wait for it to dry or had to put a good moisturizer in between my tone up cream. I got excited by this serum because of it containing snail and cica which is good for repairing damaged skin. It also claims to do miracles within 30 days. Yes it does (within the first week I noticed results) and I'm so glad I purchased this. Its light, not greasy or tacky. I did put it on my back and I noticed it lightened my scars in combination with the cream from the same line. Will order more!