Formula 4. Hair treatment composition9

Benzophenone-4 0.05% w/w
Citric acid 0.01
Chitosan PCA (Kytamer PC, Amerchol) 1.00
Ethanol 15.00
Silicone quaternium-16/glycidoxyl dimethicone crosspolymer (and) trideceth-12) (DC 5-7070 emulsion, Dow Corning) 5.00
D-panthenol 0.25
PEG-40 hydrogenated castor oil 0.50
Fragrance (parfum) 0.10
Water (aqua) qs to 100.00