I seek out nontoxic beauty products like a heat seeking missile and my nails are no different. In search of the perfect pink I looked at Environmental Working Groups ratings and found Acquarella. With a rating of 1 (0-2 being "low hazard"), I feel totally fine putting this pretty pink on my nails. One coat doesn't make a solid color, though, so, I'd recommend taking the time to put on two to achieve an opaque look. The only thing is you really need to wait for the first coat to dry before putting on a second... I think that probably due to the nontoxic nature, it takes a bit longer to set. Next time I'll time it but if I had to guess, it's probably a ten minute spread.
Nails $18: Acquarella Nail Polish, Bikini https://www.amazon.com/dp/B000WQU5LQ/ref=cm_sw_r_cp_api_YxBHzb97HXAGV