By now, you’ve probably seen them everywhere – pH-changing lip products have become the kind of phenomenon in the beauty world. They’re marketed as a magical in-between: not quite makeup, not quite skincare, but a personalised tint that promises to deliver the perfect shade. But beneath this glossy narrative lies a truth the beauty industry hasn’t exactly been eager to spotlight: for most people, these products create the same bright bubblegum pink, regardless of skin tone, undertone, or chemistry.

“Honestly, the biggest misconception is that these pH-changing colours shift according to your mood. That’s not science, that’s a marketing gimmick to sell products. Your lips aren’t mood rings,” rightfully says Arshia Kaur Vijan, a cosmetic scientist and also the founder of beauty brand, Tint

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