Illuminating Nail Concealer – Strengthener, Treatment and Sheer Polish, Brightens Yellowing, Damaged or Discolored Nails; 10-Free

I absolutely love butter LONDON Mellow the Yellow Nail Strengthener! The shimmery color is beautiful and gives my nails a healthy, polished look without needing extra layers. The application was incredibly smooth, and I was amazed at how instantly my damaged nails felt stronger. It’s lightweight yet effective, making my nails look brighter and healthier right away. This polish is perfect for anyone dealing with brittle or discolored nails—it exfoliates, strengthens, and enhances their natural beauty all at once. Definitely a must-have for nail care!

The big Butter London square cap pops off, and there is a standard sized cap underneath, with no-slip grooves in it. I did need some pliers to loosen the cap the first use, and it's been an easy hand-open every time after that. I don't have yellowing nails, so I can't address that - I bought this because I saw a picture and liked the color. The color and shine are gorgeous. I have light skin with a lot of pink in it. This polish is glossy with a *hint* of muted pink to it, which makes my nails look uniform and pretty, but not unnatural. If I put on my peeper glasses I can see there is a very fine purple glitter to it, but nothing like a glittery nail polish. I usually go with one or two coats, and it's plenty shiny, but doesn't have that heavy, glassy, sticky lipgloss looking shine that my clear coats have. The coverage is smooth and forgiving of my less-than-perfect application. It seems very durable. I have six children and no dishwasher, and as the polish inevitably wears down or chips, the color and sheen are so subtle, the wear isn't immediately noticeable. I only apply polish once a week - it definably needs redoing by day 7, but nothing like my color polishes - those look downright tatty by day seven. (My color polishes are also brands like Butter London, OPI, and Essie. It probably doesn't stick better, just looks less drastic as it wears.)

It’s great for yellow, but not good for the white spots that you get in your nails

This product does make it look like there is no yellow tone to your nails, however, it indicates it is a treatment and that not be the case. When you take the polish off, your nails are still yellow.. It's basically a cover up .. and does look amazing when on

My nails are quite stained and using this product made them look normal. In bright light you can see the blue iridescence but not overwhelming. I tried it on the 7th and removing on the 18. It started chipping. Pricey! I'm going to try the base coat next, hopefully it works well so I'm not staining my nails even more. Update: I reapplied this polish and applied a nail polish over it. Wow! 8 days and still going strong. But I need a top coat because the nail polish lost it shine. This is worth it. No improvement in growth but very strong. Buy it!!!

The color looks great once on, I got a lot of compliments. However, 1. it doesn’t actually take the yellow out of your nails, it COVERS the yellow. Like any other colored nail polish. Which I think is a little misleading, but whatever. 2. The brush doesn’t reach near the bottom of the bottle, it falls around the middle, so when you’re halfway through the product, which you will be quickly since 3. the polish peels after a couple days, you’re there practically tipping over the bottle to get a bit of polish. All in all, given the misleading representation, poor packaging and overall quality, this product is not worth $18. CND, OPI and Essie are far superior in quality and price. Don’t waste your money on good marketing.

I love this product and keep giving it to friends as a gift. My nails get yellow easily - I think it’s age? - and I searched for nail color that would give me a natural look. For me, this is better than a colored polish. It just makes my hands look clean and fresh. Dries quickly, lasts nicely. I am hooked!

Entire bottle became like glue and would not open after a few weeks. Polish chipped, scratched easy, and faded in a matter of days after usage and looked dull and flat. Not sure what happened but they used to be so good.