Sodium laureth sulfate and sodium lauryl sulfate (cleansers); biotin , niacinamide, pyridoxine HCl, and citric acid (strengtheners)
HOW IT FEELS/SMELLS/LOOKS:
The creamy formula works into a thick lather and has a fresh, slightly tropical scent.
WHY WE LIKE IT:
In the company's laboratory tests, a special photographic technique confirmed that the active ingredients, including citric acid, vitamin B3 (niacinamide), and vitamin B6 penetrate the hair's cortex—and hair treated with the ingredients required significantly more abrasions before breaking under the stress of grooming than untreated hair, proving it's stronger. What that means for you: Less hair in your shower drain. After a few weeks, we swear our hairbrush didn't need cleaning out as often, and our hair even looks fuller. It can leave hair a little parched, though, so be sure to have a good conditioner on hand.