Formula 1. Test shampoos for the present study

Water (aqua), qs to 100.00% w/w
Sodium Laureth Sulfate (Standapol ES-2, Cognis), 12.00
Cocamidopropyl Betaine (Amphosol CA, Stepan), 2.00
Dimethiconol (and) TEA-Dodecylbenzenesulfonate (DC 1784 Emulsion, Dow Corning), 1.20
Cationic Polymera, b, c (Ashland Inc.), 0.20
Sodium Chloride, 1.00

Note: Carbomer was used as a suspending aid.