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Face
Wash
Spots
Skin is the biggest organ of the body and it does a very important
job - it keeps all your insides together in one package, which it
then covers and protects. It has 3 main functions:
- Protecting our bodies from infection e.g. due to bacteria or
other microbes
- Allowing us to feel what’s around us so we can detect
danger
and pick things up with the right amount of force
- Helping to keep our bodies at a constant temperature
The skin is made up of 3 layers: the epidermis, dermis and subcutaneous
layers.
The surface layer of flat, hard skin cells is called the epidermis.
The cells you can see are dead and are constantly falling off (at
a rate of about 40,000 cells each minute) but this doesn’t
mean your skin gets thinner and thinner until it runs out. This
is prevented because you are always producing more skin cells at
the base of your epidermis. Melanin is the substance that gives
the skin its colour and helps protect you from getting burned by
the sun’s ultraviolet waves. The more melanin you have, the
darker your skin and the more natural protection you have from the
sun. But no matter how dark your skin, it’s always worth wearing
extra sun protection of SPF 15+.
The dermis, under the epidermis, contains nerve endings, blood
vessels, oil glands and sweat glands. The nerves are important because
they tell us how things feel, and they protect us from danger by
reminding us not to put our hand in a fire (burning our skin) because
it would be painful! The blood vessels bring oxygen and nutrients
to the skin cells and take away waste products. As we get older,
the dermis gets thinner and these blood vessels can become more
obvious in pale skin. There are also sebaceous glands producing
sebum (oil), which lubricates the skin and makes it waterproof.
Pores in the dermis produce sweat, which helps your body keep cool
on a hot day. The deepest layer of the skin is the subcutaneous
layer that contains fat to help us keep warm and absorb shock. This
layer holds the skin to the tissues underneath.
Unlike other organs, which wouldn’t thank you for being
washed (e.g. lungs), your skin needs to be washed regularly to remove
dirt and bacteria, and therefore help prevent infections. Some people
produce more sebum (oil) than others, but everyone generally produces
more sebum during puberty, as there is a sudden increase in sex
hormones in the body at this time which increases sebum production.
Sebum can make your hair and skin greasy and this grease can trap
dirt. If pores or hair follicles become blocked with sebum, dead
cells or dirt, spots can develop, it is important to wash the skin
thoroughly but gently everyday.
The sweat and sebum film on the skin’s surface is slightly
acidic (pH 5.5), which is believed to help kill bacteria. Most soaps
and face washes operate at pH 7 (neutral) or above and therefore
make the skin closer to neutral. This kind of alkaline soap can
remove the protective sweat and sebum film on the skin’s surface
and therefore leave the skin dry and vulnerable to bacterial or
fungal infections. Some medicated facial treatments and washes (usually
designed for a specific skin type) remove dead cells as well as
dirt, and so they must be used carefully in accordance with the
manufacturer’s directions in order to maximise their efficiency.
Good packaging should detail how astringent/gentle the product is
and also the recommended frequency of use to avoid skin damage.

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