I Don't Know What is an enhancer that transforms any oil into an intense, long-lasting fragrance. It's a secret blend of raw materials that perfumers use to make the notes of a composition shine. A bergamot accord highlights fresh nuances, vetiver acetate adds a soft amber tone, firsantol provides a lingering sandalwood note, Iso E Super adds luminosity... and so on.
Imagine it like the airy scaffolding of a building: you simply fill the interior with the oil or perfume you love—even the one that's long lost its scent. I Don't Know What gives body, depth, and presence to everything it encounters.
The result is a transparent and luminous amplifier that infuses each fragrance with that certain, as the French would say, je ne sais quoi : irresistible.