Instant Conditioners
There are three main conditioners; instant, deep penetrating and leave-in. Instant Conditioners are applied to the hair and then rinsed out after a few minutes. They attempt to smooth the cuticles and coat the hair shaft to make the hair look shiny and healthy. They work by coating the cuticle with a microfilm coating, usually a wax, that fills in or lays down the cuticle to make it shine and/or easier to detangle.
However, artificially laying down the cuticle will only provide a temporary fix. If you really want results, you need to deep condition with a penetrating conditioner. Deep conditioners use natural body heat or artificial heat from a hood dryer to lift the cuticle and penetrate the cortex.
Deep Penetrating Conditioners
There are two main types of deep or penetrating conditioners; moisture and protein.
Protein based conditioners are designed to increase the diameter of the hair with a coating action. This will strengthen the hair and add body.
Hair that is severely damaged will need a concentrated protein conditioner. These conditioners are designed to pass through the cuticle, penetrate the cortex and replace keratin lost during chemical services. They are designed to equalize porosity, increase elasticity and improve overall appearance. Because the hair is filled with new keratin, it will feel hard after use and should be followed with a moisturizing conditioner to soften and lubricate the hair shaft. Concentrated protein are NOT recommended for use after a chemical treatment like a relaxer, color or perm. These conditioners will disrupt the desired rearrangement of protein bonds formed by these chemical services.
In addition, to protein based conditioners, there are moisturizing deep penetrating conditioners. These conditioners contain humectants that attract moisture and are absorbed into the hair cortex. The difference between instant and deep moisturizing conditioner is that deep treatments contain a quaternary ammonium component included in the chemical formulation of moisturizers so they are able to attach themselves to the hair fiber and provide longer lasting moisture.