What is perm lotion?
The active ingredient in perming lotion, whether for curling or straightening hair, is a chemical called ammonium thioglycolate. Ammonium thioglycolate is an ammonia salt of mercaptoacetic acid. Boxes of perm solution also list the ingredient as ammonium thyioglycolic acid.
How long do you leave perming lotion on?
Use the same technique when applying the neutralizer as you did for the perm solution. Since the neutralizer is gentler, you can wait the full 10 minutes without checking your hair. Once the 10 minutes are up, rinse your hair for 3 minutes.
How many times can you perm?
The normal time period between perms is three to four months for short to medium-length hair as long as hair is trimmed or cut two or three times within this period. Your stylist can help you make this decision.
What happens if you leave perm solution on too long?
This particular chemical, like all forms of ammonium, is harsh, especially on delicate skin. Your scalp is made of fairly tough stuff, but if improperly diluted or left on too long, this treatment can lead to chemical burns on your scalp and the tops of your ears.
Why did my perm not take?
Your hair may simply be too fine to properly accept a perm, or a very recent hair coloring or other previous treatment may interfere with the perm chemicals’ effectiveness.
Will my perm get curlier after I wash it?
If your chemically permed hair curls more after washing, it’s temporary. … Hair that becomes curlier after washing may actually be a sign of unhealthy hair that may not be ready for a professional perm at all.