A barber styles a customer’s hair.

True Detective’s Rust Cohle mentions once that time is a flat circle. It means everything is cyclical and that everything old will be new again. This phrase is also applicable to some of the most iconic ’90s hairstyles men rocked. From the mullet to the bowl cut, here are some of the most iconic that graced our heads during that colorful decade. Plus, read on for tips on how to rock them in the 21st century.

The Curtain Haircut

One of the most iconic '90s men’s hairstyles, the curtain haircut was worn by everyone from Leonardo DiCaprio to Nick Carter to Jonathan Taylor Thomas. An incredibly versatile style, the curtain haircut had a precise center-parting with straight hair, mid-length hair on both sides. This haircut — sported recently by Timothee Chalamet and Harry Styles — can be styled in many ways. You can slick it back with hair product or simply let it flop around like a carefree surfer’s mane.

The Mullet

The mullet is arguably the most ’90s of all ’90s hairstyles for men. The hair is kept long at the back but shorter cut in the front. Its popularity is courtesy of the Beastie Boys. Subscribers to this haircut often describe it as “party in the back and business in the front.” It was a hit among teenage boys, much to the chagrin of countless parents.

Today, the mullet is much more polished than its ’90s incarnation, with stars like Game of Thrones’ Nikolaj Coster-Waldau, and Guardians of The Galaxy's Bradley Cooper sporting sleeker versions of the cut.

The Bowl Cut

Another one of those classic ’90s hairstyles men loved, the bowl cut looks like someone put a bowl on your head then trimmed the hair around it. The hair is cut to a uniform length, giving it a tidy and clean silhouette. A bold yet low-maintenance hairstyle, it was especially popular among musicians and rockstars in the ’90s, primarily because of its association with The Beatles. No longer as severe as the OG version of yore, the bowl cut of today has both soft and hard edges, making it a versatile hairstyle that’s flattering to most men.

Spiky Hair

Ah, spiky hair. Truly one of the most enduring trends from that era, spiky hair was the hairstyle of choice for many ‘90s pop groups such as NSYNC and the Backstreet Boys. It often came with frosted tips and colored hair. It is a cinch to emulate: get some and twist your hair with your fingers to create spikes.

Today’s take on spiky hairstyles isn’t as jarring as the ones from the ‘90s, with artists like Zayn Malik preferring a textured, yet still natural look rather than the overly styled versions from years past.

and scalp especially if your hairstyle requires the use of lots of styling products such as gels and waxes, which can cause buildup. Use CLEAR Cool Sport Menthol Anti-Dandruff Shampoo for Men, which contains Taurine and Triple Anti-Dandruff Technology, which helps remove all traces of grime, grease, and . It is also infused with menthol, which helps keep your hair and scalp feeling fresh all day long.

Whatever '90s hairstyle for men you choose to sport, make sure you take care of your hair and scalp by using products. Ultimately, healthy frosted tips are better than a flaky, itchy clean cut.