When someone says they apply products and condition their hair based on the needs of their hair, do you think to yourself, well how do I what my hair needs? Or when someone says they are moisture or protein sensitive, do you wonder how they know? Well, the strand test can help you determine these things.
First, determine if your hair is healthy. Simply take a piece of shed hair and put it in water (sink full of water, cup full or bowl full of water). If your hair sinks, its porous and unhealthy, on the other hand, if your hair floats, its happy and healthy.
Now, if your hair is healthy you can move on to the next step:
Determining whether or not your hair needs moisture or protein:
1. Wet your hair thoroughly and grab a piece of wet shed hair
2. If you pull the strand and it stretches 15%-20% and then returns to its original length your hair is balanced, so you can apply either protein or moisture without harm
3. If you pull the strand and it snaps immediately, your hair needs moisture
4. If you pull the strand, it stretches but does not return to its previous length, your hair needs protein
After awhile you will begin to know what your hair needs without the strand test, but this is a good way to start.