PHILIP B Weightless Miracle Serum is like a spa day for hair. This 4-in-1 formula functions as a leave-in conditioner and overnight hydrator. It refreshes hair, fights frizz, and can be used as a styling serum. All hair types can appear soft and gleaming without being weighed down. The serum is enriched with magnolia flowers, hyaluronic acid, prickly pear, acai, green tea, and cucumber.