Dark spots aren't made at the surface. They're made deep down, in the layer where melanin itself is produced. Most brightening products never get there. Water-based serums sit on top, and even many natural oils can't penetrate dense, melanin-rich skin deeply enough.
This formula uses oil-soluble Vitamin C, which travels through the skin's own lipid layers straight down to where dark spots are produced. Turmeric oil calms the inflammation that triggers new spots, and kojic acid targets the enzyme behind excess pigment.
It absorbs in seconds, with no greasy residue left behind — a sign it's actually sinking in, not sitting on top.