The 4-in-1 Pressed Mineral Makeup SPF15 in Blush medium mp3 color by PUR is highly praised by Irene in her video review. She mentions that she has been searching for a product that can effectively cover her face's discolorations, and she believes she has found the perfect one with this makeup. Irene demonstrates how easily it applies and how it gives her a natural glow. She also appreciates that it is not too dark or too light, making it a versatile option. Overall, Irene's review highlights the product's ability to provide smooth coverage and a natural finish, making it a great choice for those looking to even out their skin tone.