Key takeaways
What matters most
- The best light is the light you can recreate.
- Soft and even light makes hard shadows less likely.
- Use the same room, light source, phone lens, and background each time.
The goal of a progress photo is a fair comparison. Strong light from one side can make the same hair look very different after a small head turn. Soft and even light is usually easier to repeat.
You do not need a studio. A plain room with a fixed lamp position can be more useful than changing window light that looks perfect once and different the next month.
Stand against a plain background and mark your position. Put the main light in front of you and slightly above eye level for hairline photos. Check that the top of the head is lit for top and crown photos without a hard phone shadow.
Keep other light sources off when possible. Mixing window light with warm room lights can change color and scalp contrast between sessions.
- Use the same room and background.
- Mark the light, phone, and standing positions.
- Avoid a small ceiling light directly above the crown.
- Turn off colored lights and appearance filters.
Phones adjust brightness, focus, and color on their own. Use the same camera app and lens. Tap the same area to focus and avoid digital zoom, portrait relighting, and beauty effects.
If you use a window, return at a similar time and keep the blinds in the same position. Weather can still change the result, so compare the background and shadow direction before comparing the hair.
Open the reference image and compare the background color, overall brightness, shadow direction, crop, and highlights. These details reveal a setup mismatch before the hair does.
If you cannot recreate the room, keep the photo and add a plain note such as window light used today. The note makes the limits of that comparison clear.
