Perm products effect an opening of the sulphuric
(disulphide) bridges in the hair keratin.
The hair is softened and can thus be
shaped on the perm curler. After completion
of the development time, it is stabilized in
its new shape by a rebuilding (neutralization)
of the previously-dissolved disulphide
As a rule, an oxidation agent, usually
hydrogen peroxide, is used for this purpose.
Unsatisfactory results due to residues
Residues of reduction and/or oxidation
agents often remain in the hair and have a
negative effect on its structure.
The results are:
_ A reduction in the bounce of the curl
_ Irritation or hyper-sensitivity of the scalp
_ Difficult to comb and lacking shine due to
the swelling effect of the alkali residue
_ A lightening of the hair
_ Uneven curl result due to uneven structure
of the hair
_ Lack of elasticity
_ Reduced style durability
_ Poor appearance of the hair in general.
Frizzy hair due to incorrect application
If the perm solution used is too strong, the
development time too long or the temperature
too high, the hair swells to an extreme.
Despite a good neutraliser, this kind of
damage cannot be reversed. The result: warping
of the surface of the hair, a typical characteristic
of the use of the incorrect perm
Frizzy hair: Clearly-visible warping on the surface of the
hair as a result of extreme swelling. The hair loses it
shine and is more difficult to comb.
Perm damage due to inadequate interval between lightening
and perming: The cuticle becomes detached from
the cortex. The result is decreased springiness. The hair
Damage to hair due to inadequate interval
between lightening and perming
The stress put on the cuticle layer by both
treatments damages it so badly that it begins
to separate from the cortex. This can
result in the complete separation of the cuticle
honest with your hairstylist is
always the best approach. If
there is something that you
don't like about him/her, let
them know. They will be more
than happy to make the
adjustments and accommodate your
beauty/style needs. This will
also save you time searching for
a new one.