Evaluation of Polymethylene Waxes as Conditioning Agents in Hair Relaxers

The study evaluated the effectiveness of polymethylene waxes as conditioning agents in hair relaxers, specifically for treating naturally curly ethnic (African) hair. The hair undergoes damage and appears dull and dry after being treated with highly alkaline ingredients like NaOH. The study compared ten different relaxer formulations, some of which included polymethylene wax as a conditioner. The results showed that relaxers with polymethylene wax provided excellent conditioning, resulting in a smooth feel and shiny appearance. Scanning Electron Microscopy (SEM) was used to examine the hair samples, both with a normal electron beam and at a 75° angle, to assess the cuticle structure and the effects of the conditioning agents. The SEM images revealed that hair treated with polymethylene wax had a smooth coated appearance with minimal cuticle damage and lifting, indicating better conditioning compared to commercial products, which showed varying results. The study concluded that polymethylene wax is an effective and stable conditioning agent for hair relaxers, providing a smooth and shiny finish to relaxed hair.