OPI Hello Kitty nail polish is 4-Free (Formaldehyde, Toluene, DBP, Formaldehyde Resin). It’s been brought to my attention that some colors are 3-Free, and contain Formaldehyde Resin, while others are 4-Free (w/o Form. Resin). The colors in this collection are 4-Free. If you have a Formaldehyde Resin allergy it is best to check the label in-store before purchasing.
The OPI Pro Wide Brush is flat, wide and medium in length. It’s of average stiffness and easily spreads out on the nail when pressed. The only downside to the Pro Wide brush is that it can be too wide for slim fingers or little toes.
Since there is a wide range of finishes and pigment levels in this collection, I’m going to address application individually below.
