Do you ever think? whai is hair? how they grow? what they need to grow? Let's know about this with Berkowits Hair and Skin Clinic.

1. What is Hair?

2. HAIR- Anatomy
Hair is a protein filament that
grows from follicles found in the
dermis, or skin. Hair is one of the
defining characteristics of
mammals. The human body is
covered in follicles which produce
thick terminal and fine vellus hair.
Most common interest in hair is
focused on hair growth, hair types
and hair care, but hair is also an
important biomaterial primarily
composed of protein, notably
keratin
• Sebaceous Glands produce Sebum/Dandruff due to bacterial infections
• Hair Papilla is destroyed with Laser Hair Removal thus cutting off nutrition
• Hair Shaft is the ‘dead’ hair that grows beyond the epidermis
• Arrector Pili causes hair to stand or ‘Goosebumps’

3. What is inside the Hair Shaft?
• Cuticles are responsible for holding in moisture and protecting the hair from
external damages. Hair used in Hair Skins at Berkowits are all Cuticle Intact except
Filament Hair Skin.
• Cortex contains melanin and is responsible for the hair color. Coloring damages
hair as it must permeate cuticle to reach cortex and hence makes the cuticle
damaged.
• Medulla is the innermost layer and the exact function is unknown.

4. How does hair grow?
• Anagen is the stage where the hair shaft exists. Catagen is the phase where the
growth has stopped and the hair shaft will be shed.Telogen is the phase where no
hair shaft exists.
• Hair grows in stages. From the Growth Stage (Anagen) to the Resting Phase
(Telogen).
• Laser Hair Removal can target only hair that are in the Anagen phase as it needs
melanin to work which is why it needs multiple sessions.
• Minoxidil and other ‘vaso-dilators’ work by making more hair enter the
growth/Anagen phase.

5. Hair Texture
As the hair follicle shape determines curl pattern, the hair
follicle size determines thickness. As the circumference of
the hair follicle expands, so does the thickness of the hair
follicle. This causes hair volume to be thin, normal or
thick.
 Fine hair has a small circumference; coarse hair has
the largest circumference. Which is why they are
smoother.
 Coarse hair has a more open cuticle, causing it to be
the most porous.- Which is why they are more rough.
 Fine hair strands have a thin, smooth consistency,
whereas coarse hair possesses a harder, wiry
consistency.
 Medium hair strands are neither fine nor coarse and
fall in the middle of the two consistencies.
Bigger the area, the more effective will be the Laser
Treatment. Hence it works better on coarse hair than
vellus hair.

6. Hair Texture
• Indian Hair are mostly 2A or with a Body Wave. And Indian curly is 2C or 3A
• Chinese Hair are extremely straight.
• African Americans may have hair from 1 to 4C
It is easier to do Hair Transplant on straight hair as the hair follicles are in the
same direction.

7. How Hair Looks when Zoomed

8. Thank You