Helene Ravlich.

When model and actor Cara Delevingne burst on to the scene a few years ago, the fashion and beauty world was immediately captivated by her full, beautiful brows. And with good reason.

Those who had over-plucked and waxed for years scrambled to restore their own brows’ fullness, while those who hadn’t took the message ‘‘it’s time to go big’’, and literally ran with it.

A few years on, I fear we’ve reached ‘‘peak brows’’. Look on Instagram and you’ll find designs like negative space brows, lightning bolt brows, dragon brows, braided brows… and for those who love a fuller look? The brow wig.

It’s true that women have been dictated to for decades when it comes to what brows they should be sporting to stay on trend, from Marilyn Monroe’s angled shape and Twiggy’s thin, rounded tails.

On the plus side, Delevingne is just one face of brows, and the general aesthetic points to a widening of the beauty ideal beyond blonde and Caucasian.

Brow style has long been a focus in the Middle East, with the process of threading and the popularity of the heavy brow rooted in the Asian and Arab communities.

In Korea, brow style is straighter than in Western countries, adding another dimension again.

New brow advances include eyebrow transplants and microblading, a kind of tattooing where tiny strokes of ink are added to resemble hairs, but the proliferation of arches that look like they were scrawled on with a Sharpie pen that has erupted on social media is out of control.

Feel free to use as many products as you like to keep your brows looking proudly ‘‘natural’’, but when you’ve crossed into cartoon character territory it may be time to take a step back.

If, once, brows were ever an afterthought of beauty, it’s clear they are most definitely now a focus. Just keep yours in check.