I bought this to try a tint-in-oil type lip product, and I was really impressed with how long-lasting it was. It's definitely one of my most long-lasting tints. The color payoff is also really great - PK101 seems almost fluorescent when layered. The product has an oil and water layer. If you leave them separate, you get an intense dose of color; if you shake them up, the color is mellowed out a little bit and it's a bit more moisturizing. It tastes kind of bitter when you apply it, but it goes away quickly. I'm really impressed with this product. I took off a star because I didn't see any benefit to the oil layer. It wasn't very moisturizing (it felt the same as any other water tint), and there was no gloss or shine from the oil. Honestly though, I think this product is underrated and I'll be buying more colors.