The 4-in-1 Pressed Mineral Makeup SPF15 in Light ln6 color by PUR is highly praised by Kristy in her video review. She mentions that she recently had a chemical peel and was impressed with how well this foundation covered up her acne spots. The product claims to function as a foundation, concealer, SPF, and powder, and Kristy found it to be easy to use. She applied it with a flat brush in a whirling motion and noticed a significant improvement in her skin's appearance. She even decided to use a slightly lighter shade to blend into her neck. Overall, Kristy is impressed with the product and states that her skin looks much better after using it.