Used by professionals. Vitamin B1. For curly or wavy hair. Our Philosophy: From our origins in salons around the world, we've always had a simple vision: to create stylist-tested, salon-quality products without the salon price tag, so you can experience that salon feeling everyday. Like your favorite little black dress TRESemme will never let you down, or go out of style. TRESemme - Professional, affordable. This Product: Prepares your hair to be styled so you can achieve flawless curls every time. This moisturizing formula, containing Vitamin B1, is ideal for those with curly or wavy hair. It's gentle enough for daily use as it provides just the right amount of moisture for your curly locks. You'll be on the way to perfecting your curls before you even step out of the shower. (When used with Flawless Curls shampoo vs. an ordinary shampoo.) This product is not tested on animals. Made in USA.