OPI is a leader in nail polish brands. It's more expensive than other brands because of the quality of the polish. I like OPI polishes however, my go to brand of nail polishes is Zoya. You get what you pay for and I believe OPI is one of the best nail polishes that's comapred to China Glaze and Essie.

*Original information: OPI Nail Polish boasts about not having the toxic trio (toluene, formaldehyde, and DPB) but, it has other ingredients that aren't the greatest: camphor, which can cause nausea and dizziness if inhaled, and Benzophenone 1, which may negatively affect the endocrine system.