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1. Protect your hands by wearing gloves.

2. Place a small cutting of hair in a small dish.

3. Pour into the dish a mixture of 20 parts of 6 per cent hydrogen peroxide and one part ammonium thioglycolate (general purpose perm lotion). Make sure that you are not bending over the dish to avoid splashing the chemicals on to your face or inhaling any resultant fumes.

4. Watch for signs of bubbling, heating or discolouration. These indicate that the hair already contains incompatible chemicals. The hair should not be permed, coloured or bleached if there are any signs of reaction. Perming treatment might discolour or break the hair and could burn the skin.

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Q: How is a incompatibility test done before perming the hair?
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Related questions

How can a perm damage your hair?

Yes, however only when the person doing the perm does not know what the chemicals in the perm and neutraliser are capable of doing to the hair. Always ensure your hairdresser does a number of hair tests before perming the hair. If the hairdresser has done this and has experience of perming hair, then it will be safe to have a perm.


Different test to do before perming and how?

wash your hair


Should you color hair before perming it?

because it will take the colour our of the hair


Why is a hair incompatibility test done?

Incompatibility tests are done to check the hair for substances, chemicals, minerals and salts that could have an adverse reaction to the hair when a new chemical is applied on. Incompatibility tests are usually done by mixing hydrogen peroxide with a few drops of ammonia and applied onto the hair. Leave on for a few minutes and observe if there is any reactions.


How can a person permantly staighten their hair?

Go to the hairdressers; its perming backwards and needs to be done in a salon.


Is crimping better or perming?

Krimping is better than perming because perming uses chemicals that can damage your hair and you have to wait for it to grow out but krimping while it isn't good for your hair is not a bad as perming


Is it possible to perm AND bleach your hair. meaning perming and blaeching the same hair?

yes, chemicals are used when perming and bleaching hair,


How can you make bushy hair completely straight?

You can use an African American perm then when you are done perming it you can flat iron it "while wet to produce steam" but perming it alone will do the trick. utter rubbish


How long should you wait to dye hair after a perm?

don't ever dye your hair right after perming you must wait two weeks after or dye it two weeks before, you must remember perming and colouring hair are the two most damaging things to do to your hair especially if it isn't done correctly, so you must give your hair time to adjust to its new state before doing it any more damage. hope this helps


Do hair lasers assist in perming hair?

yes they do if you got to the salon


Is perming really bad for your hair?

yes yes


Hair perming lotion acid or alkali?

Alkaline