Hair’s chemical transformation:
One of your first concerns will be the change of your hair’s pH level.
Hair in a healthy state should have a pH of between 4.5 - 5.5. Hairs
natural oil, sebum, has a pH of 5. On the pH scale of between 1 - 14, 1
being the most acid and 14 being the most alkaline, relaxers have a pH
of between 8.4 and 14, thus changing your hair’s naturally slightly acid
state to alkaline. This will cause the hair to feel, dry, coarse and in
extreme cases you may experience hair breakage. It is therefore
imperative to take good care of your newly relaxed hair by the use of pH
balanced, treatment
shampoos and conditioners.
Once the straightening solution has been
applied to the hair, it will penetrate into the cortex (middle layer of
hair), where it will react with the di-sulfide bonds, also known as the
cysteine bonds. These bonds join together the protein chains, which are
responsible for the structural stability and strength of the hair. This
reaction will cause the protein chains to be broken and allow the hair
to soften and take on a new form. Once this has occurred the hair is
rinsed free of the solution so as not to allow any further softening to
take place. The neutralizing process is then needed to repair the broken
protein chains allowing the hair to be fixed into it’s new straight
form. Chemical reactions can still occur up until 48 hours after your
chemical service, so it is wise to wait at least that long before
shampooing your hair.
Lye or no-lye:
There are basically three types of hair relaxers. They are sodium
hydroxide, guanidine hydroxide and ammonium thioglycolate:
Sodium hydroxide
is the strongest of relaxers and is often called the lye relaxer. It is
a very harsh, caustic chemical, and should only be used on coarse,
extremely curly hair. The pH level is between 10 - 14 which means it has
the most potentially harmful relaxer. And if not used with proper care
can cause soreness of the scalp and dry, brittle hair.
No-lye relaxers
are either
Guanidine hydroxide
(a combination of calcium hydroxide cream with guanidine carbonate), OR
Ammonium
thioglycolate.
These have a pH of between 9 - 9.5, and are considered to be less
damaging than the sodium hydroxide or lye relaxers. However it is still
vital to give your hair the same TLC that you would give your hair with
a sodium hydroxide relaxer.
New Ideas:
A recent breakthrough in hair
straightening is known as the thermal ionic or bio ionic system. Using
an ammonium thioglycolate substance, with the aid of a
flat iron
maintained at 170° - 230°C, this process promises to transform your hair
into permanently “pin-straight“ hair, that will be soft, shiny and
frizz-free.
For this service your hair needs to be at
least four inches long. You will have to completely grow out your
relaxer. The service takes about three hours for short hair and 4 -5
hours for longer hair. Because of the time involved it is obviously a
costly service. However the upside is that it only needs to be done
every six months.
As with all other relaxers do not wash
your hair for at least 48 hours. And use products that are pH balanced.
Also with this particular service, it is not advised that you bleach or
hi lite your hair at all afterwards.
Precautions:
It is advisable when contemplating getting a chemical relaxer that you
go to a hair stylist that is well respected in has plenty of experience.
On your first visit to them, they should allow extra time to consult
with you, check the porosity, elasticity and texture of your hair. Your
scalp should also be checked for abrasions. This will allow them to
determine the best type of relaxer for you, after which time a strand
test should be done, to confirm their decision. During this time,
records should be taken for future reference, and suggestions on after
treatment hair care should be given. You should also be informed of how
often you would need to return to the salon, so as to maintain your
relaxed hair.
Non Chemical Relaxers:
An exciting new approach to
retexturizing hair are the non-chemical temporary strengtheners also
known as a
smoothing glaze.
This innovative type of styling lotion allows you to choose when you
want to go straight or stay curly, by temporarily relaxing curls. They
are designed to straighten, reduce frizz and protect hair from heat.
Look for natural ingredients such as Matricaria and wheat proteins.
These lotions are normally humidity resistant also. For those who prefer
the natural approach this is a great way to go:
Au Natural:
With the increase in demand for natural alternatives to the 6 weekly
regime of hair relaxing, there is obviously an increase of natural hair
care experts, offering new services in the maintenance of natural hair
styles, such as the afro, two strand twists, coils, braiding and locs.
As part of your natural heritage you may have learnt these techniques
already. If not natural hair care experts are always willing to pass on
their knowledge, of maintaining your look. Or you could maintain your
natural look by a monthly visit to your salon.
Wave of the future:
Natural hair care is the wave of the future. Women are becoming more
aware of how harsh chemicals are on their hair and how toxic and harmful
they can be to their health. There are more natural hair care salons now
available and there is a new awareness about natural hair.