1
What is linked like pop beads
Amino Acids
which bond can be broken down by water or heat
hydrogen bonds
Hydroxide chemical hair relaxers break disulfide bonds and convert them to what bond
Lanthionine bond
The wave pattern of the hair refers to the ______of the hair strand
shape
transition phase of growth of hair
catagen
Peptide is also known as
end bonds
Neutralizers are used to reform which bond
Disulfide bonds
yellow to red/ginger color
Phenomelanin
Does not typically have a fairly regular and uniform diameter along a single strand
Extremely curly hair
abnormal hair loss
alopecia
helix is shaped how
spiral shaped
this bond can be broken down by both strong alkaline and strong acidic solutions
salt bonds
absence of melanin
grey hair
Short, fine, downy, unpigmented hair on body - does not have a medulla
vellus hair
autoimmune disorder of abnormal hair
ALOPECIA AREATA
Tiny grains of pigment
Melanin
dark or black color
Eumelanin
can any race have straight or curly hair
yes
long, thick, pigmented hair found on scalp, legs, arms, and body
Terminal hair
Temporary hair loss at the end of a pregnancy
Postpartum Alopecia
resting phase of growth of hair
Telogen
natural shedding of hair how many a day
35-40
growing phase of growth of hair
anagen
Topical Treatment - FDA approved
Minoxidial
oral treatment - FDA approved
Finasteride