Hair oil

Introduction.
Hair oil is oil applied to the hair as a cosmetic, conditioner, styling aid, restorative or tonic. Different hair oils have been used for many different purposes such as hair growth, health, dryness, scalp, or to fix damaged hair. There are various forms of hair oils that can be applied such as natural hair oils which include traditional hair oils like coconut, castor, or almond oil. 
Use of Hair Oil.
Humans produce natural hair oil called sebum from glands around each follicle. Other mammals produce similar oils such as lanolin. When hair oils are first applied onto the scalp, the effect of the oil on the lipid barriers varies depending on the type of oil. Hair oils has huge benefits due to the effect that it has on the scalp. When oil is first applied, the oil forms a protective hydrophobic film that decreases transepidermal water loss as it reduces evaporation from water from the skin. The reduction of water loss is important to the scalp because it helps reduce hygal fatigue such as swelling and dryness. Further so, hair oils fills up any gaps between the cuticle cells which prevent the penetration of any damaging substances in the hair follicle. 
Types of Oils.
Mineral and vegetable oils are used to make a variety of commercial and traditional hair oils. Coconut oil is a common ingredient and brands which used this include Macassar oil and Parachute. Other vegetable oils used on the hair include almond, argan, babassu, burdock and Castor. Going the more traditional route, natural oils are used more commonly as cosmetic products on the scalp. Each oil has its own use as each ones provides different benefits to the scalp. Natural Oils come from natural resources that are ver high in nutrients such as vitamin, fatty acids, and 
Coconut Oil.
Coconut oil has been found to be one of the most commonly used oils in hair products and just by itself. Coconut oil was found to have properties that reduce protein loss in hair when used before and after wash. Coconut oil is known to have lauric acid, which is a type of fatty acid that allows it to penetrate within the hair follicles and therefore heal and repair hair that is damaged. Aside from this, coconut oil is also widely known for moisturizing the hair to avoid breakage. 
Argan Oil.
Over the years, Argan oil has become a popular product used for hair treatment. Argan oil is relieved from Morocco and is known for the conditioning effect that leaves hair soft and relieves friz. Just like coconut oil, organ oil had essential fatty acids that leaves hair healthy. 
Avocado Oil.
Avocado oil has many uses as it is very rich in nutrients. Avocado oil has a source of high vitamin E, which is an antioxidant that helps with hair loss and encourages hair growth. 
Other oils.
Other oils consist of other fruit and nuts oil such as almond oil, grape seed oil, jojoba oil, olive oil, and many more. These oils promote hair elasticity to avoid breakage while preparing dryness and other hair damage. 
Ways to Use Hair Oil.
Generally, hair oils could be introduced in a hair-care routine in many different ways. Many cosmetic products have ingredients with natural hair oils that can be used such as shampoo, heat protectant, hair drops, or hair masks. Technique that can be used to maximize potential is to use overnight as a hair mask or by adding drops of oil into shampoo and conditioner. 