Skin Cosmetics

Question 1

Define the cosmetics.

Answer 1

Preparations intended to be applied to any part of human body for cleansing, beautifying, promoting attractiveness.

Question 2

What are the types of cosmetics?

Answer 2

1_products have cosmetic effect.

2_product have very significant pharmacological effects.

Question 3

Clasdificate the cosmotic preparations.

Answer 3

Skin care.
Hair care.
Colour cosmetics.
Baby care.
Dental products.
Perfume.
Personal hygiene products.

Question 4

Define the skin care creams.

Answer 4

Semisolid emulsion base preparations containing oil and water with variable consistency.

Question 5

What are the ingredients in cleansing cream?

Answer 5

Basically cold creams containing a detergents and surfactants ofr cleaning action.
And othe ingredients helpin soften and protect the skin.
TWEENS in case of O/W cream

Question 6

What are the importance of foundation cream?

Answer 6

1_Provide smooth emolient base for application of facial makeup.
2unify the skin colour.
3 acts as a protective to prevent the damage of the skin

Question 7

What are the main ingredients in foundation cream?

Answer 7

Fatty materials (beeswax)
Ionic and non ionic surfactants
Titanium dioxid
Benzoic acid (0.2%) and salicylic acid(2%)

Question 8

What ar the importance of fatty materials in foundation cream?

Answer 8

Provide emollient effect

Question 9

What ar the importance of surfactant in foundation cream

Answer 9

Includid in the preparation for emulsification.

Question 10

What ar the importance of titanium dioxide in foundation cream

Answer 10

Impart more dark and intense colour to the skin

Cover the skin blemishes and skin marks

Question 11

What ar the importance of salicylic acid and benzoic acid in foundation cream?

Answer 11

Preserve the foundation cream

Question 12

scatter or reflects the UV radiation as it is large molecules.

Answer 12

Physical sunscreen agent e.g. titanium dioxide and zinc oxide

Question 13

What did the amount of melanin produced depeneds on?

Answer 13

1dark skined people produce more melanin.
2 genetic factors.
3_ hormonal factors.
4_ exposure to the sun.

Question 14

What are the types of bleaching preparation?

Answer 14

1_ Hydroquinone 
2_ Retinoic acids.
3_ Hydroxy acids.
4_Glabridine.
5_ Kojic acids.
6_ Ascobic acid and derivatives.

Question 15

What is the optimum conc. Of hydroquinone? And what happened if it is increased?

Answer 15

4%, if it is more than 5% will increase the risk of skin irritation

Question 16

What is the hydroquinone used to? And what is the mechanism ?

Answer 16

Is well accepted agents for bleaching hyper pigmented lesions.
It slow down and prevent the production of melanin in the skin.

Question 17

Glycolic acid derived from ….

Answer 17

Suger cane

Question 18

Malic acid derived from…..

Answer 18

Apples

Question 19

Tartaric acid derived from…..

Answer 19

Grapes

Question 20

A group of compounds derived from various plant source that has some effect on bleaching skin and bleaching hyperpigmentation skin lesions.

Answer 20

Hydroxy acids.

Question 21

Inhibit the tyrosinase activity

Answer 21

Glabridin

Question 22

Is the main compound in hydrophobic fractions of licorice extract.

Answer 22

Glabridin

Question 23

Was first isolated from Aspergillus and marketed in japan

Answer 23

Kojic acid

Question 24

Give reason. Ascobic acid and derivetives are bleaching cream.

Answer 24

Due to its antioxidant properties, may inhibit melanin production by reducing tyrosinase activity.

Question 25

What is the Mechanism of antiperspirants?

Answer 25

Decrease the sweat production

Formation of blockage or plug in the sweat duct

Question 26

What are the function of deoderents ?

Answer 26

Killing bacteria.

Musking odour.

Question 27

Chlorhexidine acetate and triclosan are used as …..

Answer 27

Antibacterial agents in deoderants

Question 28

Define the Acne

Answer 28

Is a chronic inflammatory disorder of the pilosebaceous of certain body area, resulting in greasiness and polymorphic skin eruption.

Question 29

Write short note about hair removal creams.

Answer 29

It contains :
1_ Inorganic sulphides.
2_Thioglycolates.
3_Stannite.
4_Humectants (to prevent quick drying).
5_Enzymes (keratinase enzyme have depilatory action).