Depaltors

Question 1

Is a term applied to any preparation (powder, liquid, cream or paste) designed for the removal of unnecessary hair (in particular, hair occurring on the face, legs and axilla) without causing injury to the skin.

Answer 1

.

Question 2

It is distinct from epilatory or hair destruction by hair pull out using tweezers, waxy and adhesives or electrolysis.

Answer 2

.

Question 3

Mechanism of action

Answer 3

.

Question 4

Depilatory preparations usually contain a strongly …..

Answer 4

.

Question 5

These cause degradation of hair keratin and deterioration of hair fibers because of the ……

Answer 5

.

Question 6

The pH of chemical depilatories usually falls between 10 and 12.5

Answer 6

.

Question 7

The jelly-like mass produced can be easily removed by ……

Answer 7

L

Question 8

As the epidermis is also rich in keratin, the skin

may become irritated and sensitive if …..-

Answer 8

.

Question 9

….. are used primarily for the

arms and legs

Answer 9

.

Question 10

They should not be used on the face unless specifically listed for that purpose on the product’s label.

Answer 10

.

Question 11

Requirements for ideal depilatory product:

Answer 11

.

Question 12

Nontoxic

Answer 12

.

Question 13

nonirritant

Answer 13

.

Question 14

Remove hair rapidly, preferably in 4-6 min.

Answer 14

.

Question 15

Preferably odourless

Answer 15

;

Question 16

Stable on storage

Answer 16

L

Question 17

Harmless to clothing

Answer 17

L

Question 18

Exhibit cosmetic elegance

Answer 18

.

Question 19

Depilatory active reagents

Answer 19

.

Question 20

Sulfides

Answer 20

.

Question 21

Sodium sulfide

Answer 21

;

Question 22

Strontium sulfide

Answer 22

L

Question 23

too drastic in action (2% aqueous solution have a pH 12)

Answer 23

O

Question 24

It will disintegrate hair within 6-7 min but it will simultaneously damage the stratum corneum.

Answer 24

K

Question 25

Their depilatory action is linked to their....

Answer 25

.

Question 26

sulfhydrates

Answer 26

L

Question 27

sodium hydroxide.

Answer 27

K

Question 28

is a much milder one but must be used at a higher concentration than sodium sulfide.

Answer 28

O

Question 29

Sulfide products are unpopular because they...

Answer 29

.

Question 30

The odour is most intense when the product is .......

Answer 30

L

Question 31

➢It is advisable, therefore to remove the bulk of the product with a spatula before washing. 0

Answer 31

O

Question 32

Substituted mercaptanes (thioglycolates)

Answer 32

L

Question 33

The majority of depilatory available today belong to this group

Answer 33

O

Question 34

calcium thioglycolate.

Answer 34

O

Question 35

These are used in presence of alkaline reacting material

Answer 35

.

Question 36

the resulting combination of calcium hydroxide and thioglycolic acid

Answer 36

L

Question 37

They act by the same mechanism (breaks down the disulfide bonds in keratin and weakens the hair so that it is easily scraped off).

Answer 37

O

Question 38

These possess less ...... than the sulfide type but take .... time to act.

Answer 38

.

Question 39

They are ..... on skin than sulfide and can be used on face and also to smooth the leg.

Answer 39

.

Question 40

They are non toxic and stable at use concentration (about 4%)

Answer 40

0

Question 41

Need 5-15 min to act depending on the pH of the preparation and it should be between 10-12.5 to produce depilation

Answer 41

P

Question 42

Enzymes-

Answer 42

P

Question 43

Based on the enzyme keratinase.

Answer 43

O

Question 44

Nonirritating

Answer 44

P

Question 45

odourless

Answer 45

L

Question 46

acts by digesting keratin.

Answer 46

K

Question 47

They are not commercial because they are extremely slow

Answer 47

I

Question 48

Frequently asked questions:

Answer 48

J

Question 49

What is the difference between a depilatory and epilatory?

Answer 49

O

Question 50

removes hair on the skin's surface.

Answer 50

U

Question 51

is the mechanical removal of hair by any method such as waxing or tweezing (plucking).

Answer 51

J

Question 52

This removes the hair from below the skin's surface taking out the hair follicle.

Answer 52

O

Question 53

..... is painful and may cause skin damage and subsequent infection.

Answer 53

P

Question 54

How does a depilatory work?

Answer 54

L

Question 55

Depilatories contain chemicals with a ..... degree of alkalinity such as sodium sulfide, or calcium thioglycolate.

Answer 55

.

Question 56

They react with the protein structure of hair breaking it down.

Answer 56

L

Question 57

Depending on the coarseness of hair, within 5 to 15 minutes, the hair is dissolved into a gloopy mass which can then be washed away.

Answer 57

L

Question 58

Why does skin feel so smooth after applying a depilatory?

Answer 58

O

Question 59

acts as an exfoliant

Answer 59

P

Question 60

it removes dead skin cells on the surface of the skin. These dead skin cells accumulate every day and they often feel rough. After removal, the skin feels softer and smoother.

Answer 60

O

Question 61

Many depilatories contain moisturizers such as ..........which contribute to softer smoother skin.

Answer 61

.

Question 62

Baby Oil

Answer 62

K

Question 63

Almond Oil

Answer 63

L

Question 64

Green Tea

Answer 64

L

Question 65

Aloe

Answer 65

L

Question 66

Which is best - a depilatory cream or liquid? | L

Answer 66

.

Question 67

is designed for larger areas of the body such as the legs, underarms and bikini area.

Answer 67

P

Question 68

is therefore ideal for the face.

Answer 68

L

Question 69

A depilatory cream has a thicker consistency so it can be applied to specific areas without the risk of running on to skin you don't want treated.

Answer 69

L

Question 70

How long do the results last?

Answer 70

L

Question 71

This varies with the individual but usually for many days even up to around two weeks.

Answer 71

L

Question 72

Generally the results last longer than using a razor.

Answer 72

L

Question 73

This because the chemicals in the depilatory reach down into the pores of the skin thus removing hair below the level of the skin. As a result, the hair takes longer to grow back.

Answer 73

K

Question 74

What are the pros and cons of depilatories?

Answer 74

I

Question 75

Pros

Answer 75

L

Question 76

Cons

Answer 76

O

Question 77

no cutting or abrading skin especially in unseen area discourage the regrowth of hair if they reapplied regularly 10. results vary widely 0 by gradual removal of keratinous debris from the mouth of the hair follicle

Answer 77

O

Question 78

Various strength products available to dissolve even the strongest of hairs

Answer 78

P

Question 79

offer skin smoothness

Answer 79

L

Question 80

easy to apply, widely available OTC.

Answer 80

L

Question 81

local damage to skin if they are used improperly

Answer 81

L

Question 82

possible allergic skin reaction, | L

Answer 82

L

Question 83

messy application

Answer 83

O

Question 84

unpleasant odor

Answer 84

O

Question 85

results vary widely

Answer 85

L