These Conditioners Transform Fine Strands Into Full, Healthy Hair

Just last week, Cavalcante launched his brand Brazil Edition, featuring the Restorative Peptide Leave-in Treatment. The way this leave-in conditioner works is simple: The more you use it, the stronger and thicker your hair will become. “It strengthens hair over time, making it look fuller while protecting fine strands from breakage,” he says.

Size: 3 oz.

Key ingredients: Amazonian murumuru, babassu butters, penta peptides

An ELLE editor says: “The second I received this product, I couldn’t wait to try it out. I applied a little more than a dime-sized amount throughout my hair after a shower, and allowed my strands to air dry. While my hair usually leans on the drier side, my strands felt stronger, softer, and fuller after just one use!”—Emma Aerin Becker