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All chemical treatments work differently than each other and on different hair types. The pre-perm test curl lets you judge whether this technique will get you the look you want, and check that the chemicals won't ruin your hair when you put it on your whole head.
A sit up or curl up test measures the muscular strength and endurance of the abdominals and hip-flexors. Do as many sit ups in one minute.
All chemical treatments work differently than each other and on different hair types. The pre-perm test curl lets you judge whether this technique will get you the look you want, and check that the chemicals won't ruin your hair when you put it on your whole head.
They should make two tests. One is a patch test to be sure you're not sensitive to the products. The other is a curl test to see how well your hair will take curl from whatever perm solution they're thinking of using.
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Electrochemistry is the test that can be carried to confirm the presence of sodium gas in electrolysis.
Pre perm testWe do this to make sure your hair is strong enough to withstand the strong chemicals, they will do a pull test on the strands of hair to see if there is any that break off. If they do, they will advise you against getting a perm right now and may have you condition for a month before trying again.
Pre perm testWe do this to make sure your hair is strong enough to withstand the strong chemicals, they will do a pull test on the strands of hair to see if there is any that break off. If they do, they will advise you against getting a perm right now and may have you condition for a month before trying again.
5 min shuttle run Hexagon Test Standing long jump Sit & reach Curl Ups
It depends what test is being carried out
how and why do you need to carry out a strand test
a strand test is carried out after applying colour to a hair. You remove the colour of a strand of the hair to check if you have the desired result (colour)