The new rainbow teeth frenzy has taken Instagram by storm.

David Silverstein, creator of Chrom temporary tooth polish, believes a perfectly white smile is very “been there, done that” and so decided to spruce things up with his colourful collection, reports New York Post.

The tooth polish comes in lip-gloss type packaging and is applied like a teeth whitener.

According the Chrom website, the liquid polish – which is similar to nail varnish – lasts up to 24 hour but can be removed in a matter of seconds.

Sanctioned by the Food, Drug, and Cosmetics Act in the US, it has no taste and will not stain your teeth or come of during eating.

Speaking to the Post, Silverstein said, “We see this becoming commonplace — everything from a club vibe to an everyday workplace fashion accent."

He suggests you choose a shade to match your look or accessories.

“Perhaps you go to work with one tooth [that] matches your nail polish or your hair colour."

The tooth polish sells at R282 and is available in various shades, reports The Sun.

Silverstein says the pigments, which have an alcohol base, are similar to food colouring.

But New York dentist David Drew urges caution in following the new teeth trend too hastily.

“I wouldn’t be comfortable saying [dental paint] is safe without a material safety data sheet (MSDS), which would have a full list of ingredients,” he said.

Silverstein, who plans to add a glitter line and reveals that the polish is already a big hit on the festival scene, expects it to become a growing trend.

Sources: The Sun, New York Post, Fox News, Chrom website