According to GOOP, GOOPGLOW Restore + Shine Hair Serum ($48) is clinically proven to deliver results, and is the the secret to your shiniest, softest, healthiest-looking hair. Made with cuticle-sealing Vitamin C, omega-rich sea buckthorn oil, and shine-boosting plumeria monoi oil, it’s a simple prewash treatment that smooths frizz, ramps up both shine and texture, moisturizes, and helps detangle, no matter what your hair type or texture. It’s housed in a glass bottle and applied with a dropper. Carton is marked “Made in the USA from Global Materials.”

More info: www.goop.com