I'm a pale girl who learned to embrace my skintone in Japan. I have purple bags in the corners of my eyes and have tried basic concealers but they always get cakey, creating creases in a few hours and make me look just as tired as I would look without makeup.
This product goes on smoothly, evens out my skin tone without making it look drastically different from the rest of my skin, and gives it a natural feel.
My favorite part is that it works great for my sensitive eye area since I have atopic dermatitis/eczema flare ups if I'm not careful. Some makeup brands have stung after applying but never suppin products. They're great for all skin types and haven't led to any breakouts.
I must say, they give me a milky kind of tone similar to the slightly whitening Skin Aqua Tone Up UV Essence. This suppin product *does not* whitten your skin, but it will give you a fresh and lightening/brightening look. The liquid itself is a pale pink so I do not know if I'd suggest this for all skin tones.