Pureology Smooth Perfection Smoothing Serum Finish up sleek styling with a dab of this Pureology Smooth Perfection Smoothing Serum ($29) — it helps frizz-prone hair stay smooth and silky with an added UV filter for sun protection, too. Image Source: sephora.com Pureology Smooth Perfection Smoothing Serum $29 from sephora.com Buy Now