Stop guessing. Solve your acne.

SkinTheory is an acne tracker built on the scientific method. Snap three photos a day, log how your skin feels, and let your own data show you what’s behind your breakouts.

Download on theApp Store Get it onGoogle Play
SkinTheory graphs screen comparing mood and pimple count over the last 21 entries
SkinTheory timeline showing one day’s skin photos, mood and pimple count

How is your skin feeling?

  • Stop guessing. Solve your acne: the new entry screen with three skin photos and check-ins
  • Track your skin like a scientist: hypothesis, track, analyze
  • Track your cycle, diet and more: period, fast food, dairy, alcohol and protein trackers
  • See your before and after: two photos showing clearer skin
  • Skin selfies stay out of your camera roll
  • Finally know why you break out: a graph of mood against pimple count

Track your skin like a scientist

Most acne advice is somebody else’s guess. SkinTheory gives you a simple loop for testing what changes your skin, using nothing but your own entries.

  1. Hypothesis

    Pick a suspect to test: dairy, fast food, alcohol, your cycle or a new product in your routine.

    Current experiment

    Does dairy make my chin break out?

    Test for
    21 entries
    Log
    Dairy, pimple count, photos
    Keep the same
    Benzoyl peroxide, daily

  2. Track

    Once a day, take three photos and log your skin feeling, mood, pimple count and any suspects.

    New entry screen with the date, three skin photos and a skin feeling check-in

  3. Analyze

    Graphs line your pimples up against everything else in your last 21 entries, so you finally see why you break out.

    Mood vs. # of Pimples

    4 3 2 1 0
Entry screen with skin feeling, mood, pimple count and the period tracker

Track your cycle, diet and more

Hormones, food and routine changes are the usual suspects. Log them next to your skin and see which ones line up with your breakouts.

In every entry

  • Three skin photos
  • Skin feeling
  • Mood
  • Pimple count
  • Skincare routine

Lab+ trackers

  • Period
  • Fast food
  • Dairy
  • Alcohol
  • Protein
  • More soon

Skin selfies stay out of your camera roll

Photos you take in SkinTheory stay in SkinTheory, not in your gallery or your phone’s photo memories. Show someone your holiday pics without a surprise chin close-up.

Three skin photos from one day: front, left side and right side
Every day’s photos land in your timeline, so your before and after is always a scroll away.

Ready to stop guessing?

SkinTheory is free. Start your first experiment today.

Download on theApp Store Get it onGoogle Play