Common Questions And Myths
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Human skin renews itself constantly; new cells are pushed
from the deepest layers to its surface, where they form an outer layer
of dead cells which are continually shed. This shedding of the scalp
is usually invisible. But in people with dandruff, this cell turnover
becomes unusually rapid and prone to clumping so that the dead cells
are shed as visible flakes on the scalp.
Today there is ample scientific evidence that dandruff is
caused by an overgrowth of yeasts commonly found on the scalp. Normally,
as dead skin cells are shed, they would be washed or brushed away without
trace. However when these otherwise harmless skin yeasts start to increase,
they irritate the scalp and trigger an inflammatory immune response.
When this happens, the turnover of the scalp skin cells increases, which
causes them to die more quickly, and clumps of immature sticky skin
cells are formed. The skin starts to itch, peel and visible flakes develop.
This is known as dandruff.
It is quite normal to find yeasts living on the scalp; everybody
has them. Even in people with no visible signs of dandruff, studies
show that yeasts account for an average 46% of the microbes normally
found on the healthy scalp. In people with visible dandruff, yeasts
make up 74% of the microbes found on the scalp, and this rises to 82%
in those with a severe form of dandruff known as seborrhoeic dermatitis.
Regular washing of the hair may wash away the flakes and
limit the visible signs of dandruff – but it does not treat the
yeast that causes dandruff. A yeast balancing shampoo, such as Nizorelle
Dandruff Control Shampoo contains 1% ketoconazole, one of the most effective
ingredients available to tackle yeast overgrowth – the root cause
of dandruff.
Nizorelle Dandruff Control Shampoo contains the active ingredient
ketoconazole. Numerous clinical trials have been conducted on ketoconazole
over the past twenty years. These trials have consistently shown ketoconazole
to be extremely effective in the treatment and prevention of dandruff.
This proven record of effectiveness together with its excellent safety
profile has resulted in ketoconazole becoming the leading prescribed
dandruff ingredient in the UK.
Both Nizoral®
anti-dandruff shampoo and Nizorelle Dandruff Control Shampoo contain
the active ingredient ketoconazole, but at different strengths. Nizorelle
Dandruff Control Shampoo can be used for mild dandruff and contains
1% ketoconazole, where as Nizoral®
anti-dandruff shampoo contains 2% ketoconazole and is appropriate
for moderate to severe dandruff.
Nizoral® anti-dandruff shampoo and Nizorelle®
dandruff shampoo contain ketoconazole. Always read the label. Ask
your Pharmacist for advice
Nizorelle Dandruff Control Shampoo is available in Boots and large
Sainsbury’s stores.
You can also purchase any of the products from the Nizorelle Dandruff
Control Shampoo range online click here for more details
Nizoral® anti-dandruff
shampoo is available in Boots, large Sainsbury’s, Superdrug,
large Waitrose stores and all leading pharmacies.
Nizoral® dandruff shampoo (100ml) is available over the
counter in pharmacies.
You can also purchase any of the products from the Nizoral®
anti-dandruff shampoo range online click here for more details.
Nizoral® anti-dandruff shampoo and Nizoral®
dandruff shampoo contain ketoconazole. Always read the label. Ask
your Pharmacist for advice.
Dandruff is not caused by poor hygiene but by the increased presence
of yeasts that occur naturally on everyone’s scalp.
Washing your hair frequently with a regular shampoo is no cure for
dandruff, since you only wash away the symptoms, and not the cause
of dandruff. In fact, dandruff can get worse because of too much shampooing.
You may need an anti-yeast shampoo, such as Nizorelle Dandruff Control
Shampoo or Nizoral®
anti-dandruff shampoo, to clear your scalp of dandruff.
Nizoral® anti-dandruff shampoo contains ketoconazole. Always read the
label. Ask your pharmacist for advice.
Even though some cosmetics can irritate the scalp, sprays and
gels alone are not responsible for dandruff. However, hair products
can sometimes cause allergic scalp reactions. As allergic reactions
usually cause more intense skin inflammation (intense itching and
redness), it is easy to tell the difference.
A dry scalp can be caused by a lack of the naturally produced
grease called sebum. Dandruff, however, is not caused by a lack of
sebum. The scalp doesn't produce visible flakes because it's dry,
but because there is a higher turnover of skin cells.
That's not true either. Dandruff is not caused by greasy
hair. Sebum, a naturally produced grease, does not influence dandruff.
When scientists investigated the problem more closely, they discovered
that the sebum of people with dandruff contained a higher level of
cholesterol, which allows some yeast to grow more easily on the scalp.
It's important to understand that dandruff is NOT contagious
and therefore it cannot be transmitted through the shared use of hairbrushes
or from pillows. The flakes seen on pillows or brushes are only dead
skin cells.
In many cases the development of dandruff can be genetic.
However, this doesn’t mean that dandruff is an inevitable fate
that can’t be sorted out. Indeed, today there are shampoos that
are available over the counter in pharmacies that can both treat dandruff
and prevent it coming back.
A lot of people have stress but no dandruff and vice versa. The
link between stress and dandruff is weak. However, stress can diminish
the ability of your body to fight yeasts and in this way can promote
the problem.
Wearing a hat from time to time doesn't cause dandruff. But
if you wear a hat or cap "day and night" it can become a problem.
Headwear can cause increased scalp perspiration. Where the headwear
prevents the moisture evaporating, the acid sweat becomes alkaline and
can help the growth of yeast.
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"How are flakes formed?"
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