Because you are judging with your eyes, and your eyes are subjective. You see yourself every day, so your brain quietly updates its reference image faster than your hair changes. And ordinary photos do not fix it: lighting, distance, angle and whether hair is wet or dry all change how full hair looks, often more than months of real change does.
Transcript
Because you're judging with your eyes. And eyes are subjective. You see yourself every single day, so your brain updates its reference image faster than your hair changes. And photos don't rescue you. Lighting, distance, angle, wet or dry. Every one of those moves how full hair looks, usually more than real change does. So you're comparing two photographs, not two months. The fix isn't a better eye. It's standardized images and a measurement taken the same way every time. That's what the GrowTrak system does.
This is not a personal failing, it is how looking works — and it is the same for the person across the desk from you. The fix is to stop judging by eye: standardized images of the same scalp area, and a quantifiable measurement taken the same way every time. That is what the GroTrack system does across the Uberhair provider network, so the answer to 'is this working' comes from objective data rather than from two people squinting at a photograph.