HOW TO TEST
1 TAKE SOME STRANDS OF HAIR FROM YOUR BRUSH OR COMB 
Be sure to use clean hair as products can alter the results
2 DROP THEM INTO A GLASS OF WATER
3 LET THEM SIT FOR A FEW MINUTES
If the strands float after the time is up, you likely have low porosity hair. If it sinks, the hair is likely to be high porosity. If the hair floats somewhere in the middle of the glass, this would indicate medium porosity hair

 

1

TAKE SOME STRANDS OF HAIR FROM YOUR BRUSH OR COMB 
Be sure to use clean hair as products can alter the results

 

2

DROP THEM INTO A GLASS OF WATER

 

3

LET THEM SIT FOR A FEW MINUTES

If the strands float after the time is up, you likely have low porosity hair. If it sinks, the hair is likely to be high porosity. If the hair floats somewhere in the middle of the glass, this would indicate medium porosity hair