According to the Estée website:
Light-reflective Photo Optic™ technology diffuses light to minimize the look of fine lines, wrinkles and imperfections.
I admit that usually the idea of light diffusing particles makes me a tad nervous. Some companies just don’t seem to have the light touch that is needed with them, and instead of distracting from imperfections you end up calling attention to them with too much shimmer. Not cool. This Estée pen has just the right light touch, which I love.
I rated this a 3, but really it is nearly a 4 in coverage.
Blendability: Very blendable
Buildable coverage: Yes
Feeling on skin: Lightweight
Wear: 10-12 hours
Problems with wear: No caking or settling into fine lines
Shades Available: I used light, there are 4 skin toned shades and a Soft Pink, described as a “highlighter shade is ideal for all skintones. Brings light to your face and focus to your features.”