I used the sample twice. I thought it was green, so I used it. I don't particularly care about redness. But it's not awful green, and it tones up my skin naturally when I blend it in. And it's incredibly moisturizing. It gives off a glossy finish that's typical of Korean cosmetics, so powder is a must after applying foundation. I can't really tell how effective the sunscreen is until midsummer (because I don't do anything that will get me sunburned), but the look and feel are just great! For years I've used Sun Shelter or La Roche sunscreens (because sunscreens tend to irritate my skin, these two are fine for me). If this one doesn't irritate my skin, it's not too expensive, so I'd like to buy it now. (I won't know if it irritates me until I buy the actual product and use it for a while.)