Nit Lice 101


Head lice are small brown and grayish insects about the size of a small sesame seed that you would usually find on a hamburger bun. You can find head lice clinging to a single strand of hair but they prefer to live close to the scalp because that is where they find their food. Head lice will hatch their eggs between 7 to 10 days. It also takes 7 to 10 days for a recently hatched louse to achieve adult hood and then start to lay its own eggs.

some head lice isolated on white backgroundA nit is an egg shell that is white/yellow and is left behind after the lice hatch. You can compare the look of a nit with dandruff. It will be very sticky and stick with great adhesion to the hair. Similar to dandruff, it will be very difficult to brush out any nits in your hair.

Head and nit lice issues are extremely common in young children but they can also appear in the hair of anyone of any age. Having head and nit lice infestations is not a conclusive sign of poor hygiene or dirty hair. To contract head lice a person will need to have a close hair to hair contact. Head lice have no ability to fly our jump but they simply walk from one person’s head to another’s.

Head lice do not live in bedding, clothing, furniture, or other similar types of environments. When they leave the scalp and hair they will soon die. The majority of head lice infections will come from either close friends or family members. In most cases a person may not even be aware that they have an infectious group of head lice living on their scalp.

Most people that have head lice will not have any noticeable symptoms. The only symptom that may occur is an itchy scalp. An itchy scalp is not because of a head lice biting a person but rather it may occur because of an allergy. It will take approximately 2 to 3 months for any itching to develop after you have been infested with head lice.


By the time you are aware that you have head lice you may have passed them on to other friends or family. Head lice and nits will not be eradicated by simply washing them off with your typical shampoo. You will need to use a special shampoo or wet combing method. Each of these two treatments provide an excellent way of eliminating the head lice, as long as you do it correctly.

For example, dimeticone is a product that is silicone-based and it has an excellent track and safety record when used in a variety of toiletries and cosmetics. Apply the dimeticone lotion to your hair when it is dry. You will need to do this 2 times within 7 days. Leave the solution on your hair for roughly 8 hours and then wash it off with your normal shampoo and water.

Dimeticone is believed to work by means of a physical process as opposed to a chemical effect. It works by completely blocking the breathing tubes which lice use to breathe. It will not kill unhatched eggs. This is the reason why you need to make 2 applications 7 days apart.