The hair cuticle is also said to be water resistant.

The hair cuticle is the outermost part of the hair shaft.

It can fill in gaps in the hair cuticle that are cracked, dry, or damaged.

Some flatten the hair cuticle so hair feels smoother.

After doing so, you can use styling products that contain silicone or dimethicone in order to coat and protect the hair cuticle.

Everyday elements, such as the sun or wind can also cause wear and tear on hair and damage the hair cuticles as well.

Newest products are his Protein RX line, to repair frayed, beat-up hair cuticles.

The iron has specially vented plates to extract moisture from the hair, steam it flat and seal the hair cuticle.

Use warm-hot water to shampoo and cool water to condition to close the hair cuticle and lock in that conditioner!

It can also physically restrict hair growth or damage the hair cuticle, leading to hair that is weakened and easily broken off before its natural lifecycle has ended.

The technique of the application is similar to the Japanese Yuko System in the way that heated flat irons are used to close the product into the hair cuticle.

The hair cuticle is the first line of defense against all forms of damage; it acts as a protective barrier for the softer inner structure including the medulla and cortex.

It reduces the swelling of the hair cuticle t the crucial part of the process when hair is at its most vulnerable - between the perm solution and neutraliser stage.

WELLA'S Lockwell Acid perm takes the stress out of the whole process by minimising the swelling of the hair cuticle and gently forming hair into long-lasting curls.

Hair turns dry, limp and static-ridden, Dr. Elewski said, from the use of blow-dryers, hot rollers and flatirons, which she said squeeze out moisture, damaging hair cuticles and causing the frizzies.

Pre-shave products and some shave creams contain potassium hydroxide to force open the hair cuticle and to act as a hygroscopic agent to attract and force water into the hair shaft, causing further damage to the hair.

"I apply the proper treatment and give the client a scalp, neck and back massage, while she sits under heat, to stimulate blood circulation and open the hair cuticle so the product can penetrate better," explained Alirio Sanchez, a Kérastase treatment specialist.