Just finished my first bottle, which lasted about 5 months and I am rebuying. I love this product, my skin is the most hydrated and supple it’s ever been. I use this product between my toner (Etude House wonder pore freshener) and my essence (Cosrx advanced snail 96 mucus power essence). It is extremely soothing and hydrating. I have acne prone , sensitive skin (from accutane) and this product helps with both irritation and redness. I over-exfoliated my skin a few times and it was very helpful in the healing process.
It is significantly more effective when used with a cotton pad and then pat dry. For occasional pimples (especially painful cysts) I put a few drops on a new pad and leave it until it dries off.
Only caveat, there is an odd, light, herbal smell. Overtime I stopped noticing it, b/c it goes away as the product dries.
(FYI, in addition to this product I use an oil cleanser, mild Cerave cleanser, acne medicine, Cosrx BHA blackhead clearing liquid, and Cosrx Snail Mucus)