Key takeaways

What matters most

  • Check lighting, angle, distance, hair state, and styling before comparing the hair.
  • Compare the same saved view with stable landmarks.
  • Review the baseline, latest photo, and the full sequence before writing an observation.

Start with the background, shadows, color, crop, camera height, head tilt, hair length, part, moisture, and product. A change in any of these can change how much scalp appears or where the hairline seems to sit.

If the setup is different, keep the photo and mark the comparison as limited. An imperfect image can still belong in the record when its limits are clear.

  • Same saved view and phone lens.
  • Similar crop, distance, and head position.
  • Similar light direction and brightness.
  • Similar hair preparation and styling.
  • No appearance filters or digital zoom.