Flip presents the Master Radiance Base in Rich in radiance color by RMS Beauty, as reviewed by Brittney. In her video review, Brittney expresses her love for this product. She applies it all over her face and notes that it provides a solid, packed powder finish. Despite this, she mentions that the base gives her a dewy and glowy appearance. Brittney emphasizes that she hasn't applied any other products yet. Overall, the Master Radiance Base seems to deliver on its promise of radiance and a natural glow, making it a desirable cosmetic option. However, it's important to note that the review does not mention any potential drawbacks or long-term effects of the product.