Algenist REVEAL Concentrated Color Correcting Drops (Green) by Algenist

Q: how to set contour and highlighter

I just add a little to my primer to help give my skin a good color foundation to work with.

Q: what color helps what skin problems

Green with redness and blue brightens and the peach/pink evens skin tone.

Q: I'm a man and don't use any makeup. Can I use this product by itself witout any other makeup?

You can use it by itself but you will have to apply it with a moisturizer. I use aloe Vera gel and mix in 3-4 drops and the apply it to my face. As a female I have a fuzzy upper lip (thanks genetics) and I noticed that in that area if I didn’t use enough moisturizer to dilute it that it would have a green tint. I’ve used a lot of products for redness and this by far is the best.