The Cyklar Vanilla Verve Body Oil brightens, softens, and smooths skin. Read a beauty writer’s review of the body oil from a Hailey Bieber-used brand.

Rosehip oil contains several beneficial compounds, including vitamin C and essential fatty acids. There are several ways to use it, but you’ll want to avoid ingesting it.

About the Fount Society Brightening Vitamin C Oil Unlike many vitamin C serums, this formula is an oil. It contains 2 percent vitamin C and comes in one size, 2 oz.

With any Vitamin C product, there is a slight chance of oxidation. And while Sunday Riley CEO Vitamin C oil uses THD Ascorbate, which is much more stable, this oil can still go bad or develop an odor.

A contributing editor tested the FaceGym Firming Vitamin C Oil + Nootropic Serum and deemed it a must-have base for facial massage.