Firstly I should start by saying that I have combination skin most of the time, slightly oily t-zone and the rest of my face leaning more dry, I also suffer with breakouts.

I've seen really good results using this serum and I especially love the texture, it has the texture of a light (almost gel like) lotion but it sinks in completely very quickly. Because of this I use it either at the serum stage in my routine or at the moisturizer stage if I just want something light on top of another serum.
Despite having this light texture it is very hydrating and 'quenches' the drier areas of my face but because of the texture it also works nicely when my skin is more oily and doesn't clog my pores.
I notice that my skin overall looks brighter and clearer when I use this serum and it makes makes a really nice simple moisturizer when I am breaking out, it also doesn't irritate my breakouts and doesn't sting around the eye area at all.

Overall I really love this serum, it's simple yet effective. It works to hydrate and brighten both the oily and dry areas of my face, it's hydrating but not too much for my oily t-zone.
The only real downside to this product is that it's not easily accessible, but that isn't uncommon for Korean beauty brands (for me anyway.)