Thickness refers to the width of each individual hair strand, which can range from 30-180 microns. We measure the micro-width of your hair under a microscope. Knowing the precise width of your strands is critical to choosing the right products.

Your porosity reveals how your hair absorbs water, how frequently you should use products, and how to apply them. High porosity hair absorbs water quickly and is more susceptible to swelling. The opposite is true of low porosity hair. We measure porosity with a surface tensiometer, which calculates the angle at which water contacts your hair. A large contact angle indicates low porosity, as water is more inclined to sit on top of, rather than seeping into, your hair. We are the only non-university lab that tests hair porosity using surface tensiometry.

Measuring your scalp's sebum level helps us determine your optimal shampoo routine. Your scalp naturally produces sebum, a layer of oil that forms on your scalp and travels onto your hair. Your results are measured using the oil adsorptive technology included in your hairID kit.

Water hardness measures the quantity of minerals, such as calcium ions, in your water. The minerals in hard water can bind to your hair, building up slowly each time you shower. These minerals can even compete with your conditioner, making it less effective. Hard water necessitates washing your hair with a special shampoo.

We measure porosity, which lets us know if damage is affecting how your hair reacts to water and products. We also examine your cuticles under a microscope for evidence of damage. We look for physical damage, typically caused by brushing and friction; chemical damage, typically caused by color treatments and chlorine; heat damage, typically caused by styling with heat; and UV damage, caused by sun exposure. Cuticle fusion is typically caused by sun exposure. Cracks can indicate friction damage, caused by brushing or rough handling of hair. Spiral shaped holes in the cuticles indicate potential heat damage.