Life-Changing Beauty Products  

MAC Eye Shadow, $14

Average rating: 9

Why it's life-changing: "MAC eyeshadow colors hold up all day long [and] blend well, which allowed me to understand the artistry of makeup that I had no concept of before. Every pot is well worth the money. Although this site describes the pans as 'tiny,' they last a LONG time. In most cases, far longer than cheaper brands. I need to apply so much less to achieve the color payoff I want in my makeup." 
— Purrmeow, TotalBeauty.com member