Protective Effect of Conditioner Agents on Hair Treated with Oxidative Hair Dye

The study from January 7, 2018, investigated the protective effects of various conditioner agents on Caucasian hair treated with oxidative hair dye. The agents tested were silanetriol (and) Panthenol, PEG-12 dimethicone, and hydrolyzed silk (and) hydrolyzed milk protein (and) lactose. The hair samples were evaluated for protein loss, breaking strength, and combability. The results showed that the use of conditioner agents in the dye emulsion reduced protein loss, with the order of effectiveness being: untreated hair (sample I) had the least protein loss, followed by hair treated with hydrolyzed silk/milk protein/lactose (sample V), PEG-12 dimethicone (sample IV), and silanetriol/Panthenol (sample III). Breaking strength was unaffected by the treatments. For combability, the treated hair without conditioner (sample II) was the most difficult to comb, both wet and dry, while the use of conditioners improved combability. The study concluded that incorporating conditioner agents into the hair dye emulsion decreased the damage caused by the coloring process. The study involved 15 hair samples, and differences with statistical significance were noted where P ≤ .05.