Washing hair removes excess sweat and oil, as well as unwanted products from the hair and scalp. Often hair is washed as part of a shower or bathing with shampoo, a specialized surfactant. The physical action of shampooing makes the grease and dirt become an emulsion that is then rinsed away with the water.

Conditioners are often used after shampooing to smoothen down the cuticle layer of the hair, which can become roughened during the physical process of shampooing. There are two main types of conditioners: intensive conditioners, which enter into the cortex of the hair and help improve the hair's internal condition (also known as Treatment Hair Masks or Hot Oil Treatment Creams or Hammam Zaits); and everyday conditioners ( either rinse off or leaveon), which smoothen the cuticle layer, making the hair shiny, manageable and smooth. Conditioners can also add a physical layer of protection for the hair against physical and environmental damage.
Hair is basically like a fiber. Think of a wool fiber: The more you wash it, the worse it's going to look. So you need to try to avoid frequent washing as much as possible. Or use nourishing shampoos or prewash oil treatments if you think your hair is dirty or smelly enough for a wash. An easy way of knowing how often to wash your hair is basis your hair type - the longer, thicker, curlier, and more processed your hair, the longer the time gap you can leave between washes. This is because the oils from the scalp do not travel down the hair shaft as quickly, so the hair tends to be dry and requires less frequent shampooing.
A shampoo is for cleansing especially for the harder to reach places in your hair , which need the most cleansing. Your scalp collects the most oil and consequently dust . Most styling products also deposit themselves on the scalp and may cause blocked pores that would lead to hairfall. You therefore need to make sure that apply shampoo on your scalp and build up some foam. Thereafter you can gently scrub down the length of the hair or from the back of your head to the front and vice versa . A conditioner needs to be applied to wet hair right after rinsing off shampoo. Since the conditioner is for artificially replenishing the Oils lost during shampooing, remember the way of application is opposite to that of a shampoo. Start from the tip and make your way to the roots. There is no need to apply conditioner to your scalp since it will produce natural oils of its own.

UsefulTips : - Leave in the conditioner for about 2-3 minutes before washing it off. Apply both shampoo and conditioner lengthwise on your hair rather than bunching it up this will prevent tangling and hair damage due to friction. Also try to avoid using very hot or hard water to wash or rinse your hair.
Based on your hair type and oiliness level of your hair you might need to use different types of shampoos and with different frequencies of wash. Find a shampoo to suit your particular need and try and make sure that you use the corresponding conditioner to the shampoo you use. A quick study of the shampoo pack and the benefit or hair type it targets will hap in easy selection of the perfect shampoo for you.You might like to click on the links below to find out more.
Hair may get dry, limp, brittle & or damaged due to years of regular colouring and styling. That’s when you need a deep conditioning treatment as opposed to regular conditioner that works only on the hair surface. One of the best ways to deeply condition your hair is to use a Treatment Hair Mask. A treatment hair mask is a special type of Intensive Conditioner that is left on the hair for 10-20 minutes. For the deep conditioning treatment to be truly effective, it is important that the treatment hair mask is used along with a hot towel (home equivalent of a steam cap used by salon stylists).The heat from the hot towel allows the hair shaft to swell, opens the cuticles and lets the conditioner go deep inside. By promoting elasticity, deep conditioning improves the strength of the hair making it more resilient to external damages which helps in repairing, thickening & volumising in the long term.
Typically in an ideal world you would want to replace your normal wash off conditioner with a deep conditioning treatment after every third wash. It would definitely make your hair look thicker and restore moisture to your hair strands but it takes longer so it varies how often you use it. However, it is recommended to use the treatment hair mask atleast once a week if you feel your hair are dry & damaged !