L'Oreal Plump Ambition pH Hyaluron Lip Oil (Color-Shifting) — 22% Off

L’Oreal’s Plump Ambition pH-reactive lip oil shifts color based on the wearer’s lip pH, producing a personalized tint that varies between users. The hyaluron base delivers actual plumping hydration alongside the visual effect, separating it from many cosmetic-only lip oils. The color-shifting variant has driven much of the line’s recent TikTok attention. With over 3,100 reviews averaging 4.4 stars, this is one of the better-performing pH-reactive lip products at drugstore pricing. At $10.97 — 22% off the $13.99 list — this is an accessible price for a viral-trend lip product.