Olaplex used to be something only hair stylists knew about, but these days, anyone who has dealt with damaged tresses has heard of this iconic treatment. It's famous for repairing the bonds within your hair to help counteract all the torture of bleaching, coloring, heat styling and chemical treatments. Unfortunately, this miracle worker can cost a very pretty penny, which is how Elizavecca Cer-100 Collagen Coating Hair Protein Treatment became a social media sensation. Fans say it rivals Olaplex at a fraction of the cost. And now it's even more affordable, down to $8 and change.