I love the look and feel of the lip serum! I have a neutral/warm undertone (Light Spring) and Koi and Gospel look lovely on me! I thought Koi would be too bright, but it honestly matches my skin tone perfectly! It's what I'd choose for every day! I'm tempted to try Kind and compare, but I really do love Koi. I purchased Root and Nudie for my mother in law for Christmas (She's a winter) who has a cool olive tone, I'm so excited to see them on her! If you love having lipstick on, but your lips get dry or you are wanting a more natural every day look I really recommend these! I was also really impressed with Fitglows customer service, I purchased the 3 pack and I forgot to add the Black Friday code, and they refunded me the discount in 24 hours after my email. They also included a free night serum even though I didn't qualify for the free gift! It's so nice not to wake up to split lips, amd I do find my lips look a little extra plump.