It wasn't that long ago that Olaplex was only available in salons. No. 1 and No. 2 are still for professional use only but hair-obsessed customers can purchase No. 3, $28, at Sephora, Olaplex.com and professional salons. To maintain locks, it's recommended you use the step once a week. If hair is damaged, use it two to three times. In all cases, apply the treatment to damp, toweled-dried hair for a minimum of 10 minutes before rinsing. Follow with shampoo and conditioner.

Speaking of lathering up, Olaplex now offers the No. 4 Bond Maintenance Shampoo, $28, and No. 5 Bond Maintenance Conditioner, $28, for at-home use, Neos says. The shampoo is color-safe, suitable for all hair types and works to repair and nourish hair. Similarly, the conditioner nourishes and relinks broken bonds for a flawless mane. Even those who have never received a professional Olaplex Stand Alone Treatment can use No. 3, 4 or 5. No. 3 "works for all hair types and on any color of hair from virgin, natural, processed, gray, to compromised and all of the above."

When something is really good, people will be searching for dupes. There are similar treatments to Olaplex for professional and at-home use. One example is Joico's K-PAK Reconstructor, a deep conditioning treatment that restores broken bonds caused by chemical services and heat styling, says Joico brand ambassador Larisa Love. Similarly, Redken offers a pH-Bonder salon treatment with a pH-Bonder Post-Service Perfector, $16, for at-home maintenance. L'Oreal Professionnel's Smartbond system is described as the "perfect complement to its colors and lighteners" and protects and fortifies hair during service. Other brands with systems include b3 Brazilian Bond Build3r and Schwarzkopf with its Fibreplex.

No matter which treatment you get, ensure that it's done by a licensed professional and do your research. Consider what other hair treatments you're getting done, maintenance, at-home care and the stylist's experience. And don't be afraid to ask questions.