Density Thickening Protein Spray contains unique Hyper-Branched Polymers and Hydrolyzed Pea Peptides to instantly volumise fine hair. Their heat-protecting, density-boosting formula fortifies weakened strands, helping to preserve the internal structure of the hair, while improving lustre and shine. Results that speak for themselves... 4 out of 5 users reported their hair felt stronger.** 91% of users reported their hair felt more textured.** Increased hair volume by 25% after one use when used in combination with Density Thickening Conditioner and Density Thickening Protein Spray.* *Independent Instrumental Tests, compared to a standard shampoo and conditioner. **Independent User Trial.