Cosmetic-
Introduction-
Cosmetic is a Greek word
which means to 'adorn' (addition of something decorative to a
person or a thing). It
may be defined as a substance which comes in contact with various parts
of the human body like
skin, hair, nail, lips, teeth, and mucous membranes etc, Cosmetic
substances help in
improving or changing the outward show of the body and also masks the
odour of the body. It
protects the skin and keeps it in good condition. In general, cosmetics
are external
preparations which are applied on the external parts the body.
Even in earlier days,
men and women used to decorate their bodies for improvement of
appearance. Men used
leaves of vegetables and parts of animals whereas women use to wear
colored stones and
flowers round their neck and wrist. Gradually, they start using colored
earth and ointments on
their face and body. Even bangles and necklace made of baked earth
materials became very
common among the people. Eye shadow were made of copper
(coloured earth) ore and
lamp black (coloured earth) while red colour was used for dyeing of
Hair -
Now a days, cosmetics
are considered as essential components in life. They not only, attract the
people towards it but
also impart psychological effects. It has gained popularity in the last 3-4
decades and its use has
been increased exponentially both-in males and females. The most
popular cosmetics are
hair dyes, powders and creams.
Examples of Cosmetics:
Skin-care creams,
powders, lotions, lipsticks, nail polishes, eye and face makeup, deodorants,
baby products, hair
colourants and sprays etc.
Uses:
1. They are used as a
cleansing, moisturizing and beautifying agent.
2. They help in
enhancing attractiveness of the body.
3. They help in altering
the appearance of the body without affecting its functions.
4. Sunscreen products
help in protecting the body from UV rays and treating sunburns.
5. Acne, wrinkles, dark
circles under eyes and other skin imperfections are treated or repaired
Classification-
Cosmetics are broadly
categorized into four types:
1. Skin Cosmetics
2. Hair Cosmetics
3. Nail Cosmetics
4. Cosmetics for hygiene
purpose
Lipstick-
Lipstick may be
basically defined as dispersion
of the colouring matter
in a base consisting of a
suitable blend of oils,
fats and waxes with
suitable perfumes and
flavours moulded in the
form of sticks to impart
attractive gloss and
colour, when applied on
lips.
Lipsticks provide moist appearance to the lips
accentuating them and
disguising their defects.
Qualities of good
lipstick-
The ideal requirements
for the formation of a good lipstick may be as follows:
• It should efficiently
cover lips with colour and impart a gloss which would last long.
• It should be able to
maintain the intensity of colour without any alteration in the degree
of its shade.
• It should be able to
adhere firmly to the lips and should not provide any greasy
appearance.
• It should possess good
thixotropic property so as to deposit the colour with minimum
pressure.
• It should show a smear
proof coloring effect.
• It should possess
required plasticity and be able to maintain all the properties throughout
the storage period.
• It should not be
gritty.
• It should be easily
dried.
• The stick should
possess even firmness and should maintain its strength at varying
temperatures up to 55°C.
• The stick should not
dry or crumble easily.
• The lipstick should
possess a pleasant fragrance and a good flavour.
• Should be safe and
non-irritating to the lips.
• Result in blooming or
sweating of the lips.
Formation-
The lipstick base is made by mixing
the oils and waxes in varying proportions in order to
Obtain a desirable viscosity and
melting point.
Comments
Post a Comment