Horses ever given you hair envy? Mane 'n Tail might be why. Originally made to gloss up – you got it – horse manes and tails, the brand’s nourishing and repairing hair-care formulas proved such a hit that they became coveted among humans. We’ve picked a few of our faves from its selection of shampoos, conditioners and leave-in treatments, so you can have silky, swish-worthy locks, too.