§01How it worksKeep scrolling
01/ 06
The problem
You bought a serum.
Is it working? Your mirror can't tell you.
Every morning
Scan your face.
YouCam scores acne, pores, redness and texture.
Every night
Wear your watch to bed.
Sleep and stress change your skin too. It logs both.
All day
It buzzes when you touch your face.
Every touch is counted.
Over the weeks
Every morning lands on one chart.
Ups and downs inside your normal wobble don't count.
The answer
Worth it. Or not.
Or too early, with the day you'll know.
§02The wobbleFig. 02 · illustrative
Baseline
Five scans, back to back.
Their spread is your normal wobble.
Day 3
“It's working!”
Inside the wobble. Doesn't count.
Day 7
“It stopped working.”
Still inside. Still nothing.
Days 10–18
Too early.
And it tells you so.
Day 19
Now it counts.
Clear of the wobble, and staying there.
Worth itDay 19 · clears the wobble
MDC95 = 1.96 · √2 · SEM