Chemically treated hair

General term referring to chemical coloring, tinting, perming, curling, straightening, etc....

Botanical

referring to plants or plant derived

Crown

upper, back part of scalp

Vertex

the area on the top flat portion of the scalp; above the ear to ear trajectory

Temporal

frontal area of the scalp; often the first area to start balding in men

Seborrheic dermatitis

skin disease, usually of the scalp, exhibiting lesions and discolored scaliness

Papilla

this is at the center of the hair  bulb base.  The hairs nourishment passes through the papilla.

Epidermis

The thin upper layer of skin

Dermis

thick lower layer of skin

Subcutaneous tissue

the layer below the dermis

Hair bulb

thick lower end or base of the hair shaft

Hair shaft

main body of hair above the bulb.  The hair shaft is made up of three parts. 

The Medula - is the central or core portion. 

The Cortex - is the main bulky portion of the hair shaft. 

The Cuticle - is the outer protectant layer.  It has a scale- like composition.

Sweat glands

Eccrine - sweat glands that opened directly onto the skin  surface.

Sebaceous - sebum secreting glands that open into hair follicles.

Apocrine - sweat glandsthat open into hair follicles.  Their secretion produces perspiration “odor” when bacteria interacts with it.

Sweat pores   

the skin opening of a sweat gland

Arrector Pili Muscle

muscle attached to the lower portion of the hair shaft and the skin.  Involuntary muscle that when contracted causes the attached here to raise.

Melanocytes

cells located in the basal cell area, immediately beneath the epidermis that produce melanin.

Melanin

a color producing pigment for skin, hair and eyes.  Sunlight stimulates production of melanin which protects against UV rays

Minoxidi®l

Tradename: Rogaine® - Blood Pressure medication used to stimulate hair growth.

Hair Removal