frizzing. Types Conditioners, also called deep conditioners or hair masks, are heavy and thick, with a high content of cationic surfactants that are able to bind to the hair structure and "glue" the hair surface scales together. This type of conditioner is designed to restore hair's moisture levels and reduce breakage. These are usually applied to the hair for a longer time (30-45 minutes). Leave-in conditioners are thinner and have different surfactants, which add only a little material to the hair to avoid weighing down the hair or causing greasiness. They are based on unsaturated fatty acid chains, which are bent, not straight. Leave-in conditioner is designed to be used in a similar way to hair oil, preventing the tangling of hair and keeping it smooth. Its use is particularly prevalent by those with naturally curly or kinky hair. Rinse out/Rinse through conditioners are the most common or generic on the market. Ordinary conditioners are generally applied directly after using shampoo, and manufacturers usually produce a conditioner counterpart for different types of shampoo for this purpose. Hold conditioners, based on cationic polyelectrolyte polymers, hold the hair in a desired shape. These have a function and composition similar to diluted hair gels. Cleansing conditioners are a newer category, typically based on a combination of amphoteric and cationic surfactants that can be used in place of a shampoo either as a pre-treatment before shampooing for hair that is damaged or very curly. Ingredients There are several types of hair conditioner ingredients, differing in composition and functionality: Acidifiers, acidity regulators which maintain the conditioner's pH at about 3.5. In contact with acidic environment, the hair's somewhat scaly surface tightens up, as the hydrogen bonds between the keratin molecules are strengthened. Antistatic agents which bind to the hair and reduce the static, these can include cationic polymers such as Polyquaternium-10 and Guar Hydroxypropyltrimonium Chloride Detanglers, which modify the hair surface pH as acidifiers, or by coating it with polymers, as glossers. Glossers, light-reflecting chemicals which bind to the hair surface. Usually polymers, usually silicones, e.g., Dimethicone or Cyclopentasiloxane. Lubricants, such as fatty alcohols, Panthenol, Dimethicone, etc. Moisturizers, whose role is to hold moisture in the hair. Usually, these contain high proportions of humectants. These could also be provided by natural oils such as Prunus Amygdalus Dulcis (Sweet Almond) Oil. Oils (EFAs – essential fatty acids), which can help dry/porous hair become more soft and