Fourth Ray Beauty Cactus Hydrating Serum Boost If you have dry skin, the Fourth Ray Beauty Cactus Hydrating Serum Boost ($14) is here to help! It has a rich blend of vitamins A, C, and D while giving your skin the ultimate hydration boost. Image Source: ulta.com Fourth Ray Beauty Cactus Hydrating Serum Boost $14 from ulta.com Buy Now