How to carry out a hair porosity test

How to carry out a hair porosity test

If you want to test the porosity of your hair ( ability to absorb moisture) you will need a few strands of your hair, which can be taken from your comb and a glass of water. Healthy hair will float on the water, which means that it does not absorb the water, and on the other hand very porous hair with an open cuticle will soak up water and sink.

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