This is a totally new essence from IK. And I’d say it’s similar to a first care serum. Or if you don’t know what a first care serum is, I’ll list similar items: OHui Cell power No.1 essence, Whoo Soon Hwan essence, Su:m37 Secret programming essence, SK-II Facial treatment essence, Sulwhasoo First care serum. All of these have a big size one. This bottle is about 120ml, covering the 3 dimensions of your skin: anti-aging/firmness, whitening, hydrating/moisturizing.