L'Oreal Elvive Fibrology Thickness Booster 30ml uses the science of fine hair against it - since the problem is not fewer hairs, but each hair being thinner, the solution is to increase each hair's thickness, which this product is proven to do.
This thickening booster uses filloxane to penetrate every hair and expand it, then remains inside the hair fibre and produces a cumulative effect over every application. Your hair will look thicker wash after wash.
Please read the instructions on the packaging and included with the product carefully.
For optimum results, use this product twice a week.