You know that universal moment when you swipe on a lipstick that looked divine in the tube, only to glance in the mirror and wonder if you’ve just fast-tracked yourself into an audition for “pale and tragic”? Meanwhile, your best friend is wearing the exact same shade, strutting around like she was cast as the face of a lipstick commercial. Cue the spiral: is your mirror lying, or are your lips just uncooperative?

The truth is, lipstick is not a “one-size-fits-all” fairytale. What absolutely is a smash perfection on someone else might betray you completely, and it’s not your lips’ fault. The culprit hiding in plain sight? Your undertone. Yes, that subtle undertone running beneath your skin is the reason why a classic red transforms into a bombshell statement on one person but goes clownish on another. Once you get that decoded, you stop wasting money on shades that betray you and start curating a lineup that always works in your corner.