Transform the look of your hair with DECIBEL’s thickening and volumizing treatment.

Thanks to the exclusive 140dB™ complex, its progressive, residue-free formula helps increase hair thickness and volume by up to 74%. Its long-lasting technology lasts through more than 20 washes, while preserving color vibrancy.

In addition to making detangling easier and reducing drying time, this treatment helps repair, protect, and leave hair stronger, denser, and visibly more voluminous.

How to use:

After using Decibel Thickening Shampoo, apply the Hypertrophie treatment to the entire head of hair. Leave on for 5 minutes, then rinse.
Next, apply the Decibel Thickening Conditioner, then rinse.
Style as usual.