Decibel Hair offers a focused volumizing system built around three core products - the Thickening Shampoo, Thickening Conditioner, and Hypertrophy Thickening & Volumizing Treatment - all powered by the brand's proprietary 140dB™ Complex designed to increase hair thickness and volume by up to 74%.  Decibel Hair is a stylist founded, science backed haircare brand dedicated to volume and hair thickening. Their formulas use the 140dB™ Complex, a proprietary blend of acids and peptides.

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