Scan your skin.
Thirty seconds with your phone. Stella reads 23 appearance metrics.
Know your skin. Get more from your skincare.
See how your skin changes alongside your routine and daily life. Stella turns repeated 30-second scans into a record you can explore.
Connect Apple Health, Oura, Fitbit and more.
Scan 01 / 29
A real skin record
One face. 29 moments.
Move through Jo's scans to see what a single photo cannot show: change over time.
Scan 01 / 29
- Redness
- 62 79
- Dark circles
- 60 76
- Pigmentation
- 84 79
23Tracked Metrics
30sPer Scan
WeeklyReports
Consistent, scan to scan.Adjusts for lighting and camera · 5–8% variation in repeat testing
From one scan to your own skin history.
Scan. Keep the record. Add context. Ask what changed.
See how Stella works →
Build your history.
Every scan is dated and kept, so you see what changed and what held steady.
Add the context.
Put routine, sleep, stress and cycle beside your skin history.
Talk to your skin.
Ask Stella what's changing and how today compares with your own past.
Bring in the bigger picture.
Connect sleep, stress, activity and cycle beside your skin record. You choose what to connect. Stella never sells your personal or biometric data.
Why Stella
Skin changes. Most people only see fragments.
Alice founded Stella to give more people a simple way to see their skin over time—alongside routines, life stages and the wider context around it.
Dr. Alice Rudd · Dermatologist · Co-founder of Stella
Read why Stella existsBuilt across innovation, engineering and medicine.
MIT Sloan
Global Innovation & Leadership
Purdue University
Engineering
Monash University
Medicine
Institutions are listed for team background only. No affiliation or endorsement is implied.
What people learn from keeping the record.
“I love this app! I've been scanning for a couple of months and it's been really cool to see how my skin responds to different products that I have tried…”
“Awesome app, learning things about my skin that I didn't know about.”
Common questions.
Stella follows 23 appearance metrics over time. It also shows 3 additional skin characteristics that provide context for each scan.
About 30 seconds. You use your phone camera in good lighting. No special equipment needed.
Stella's scans are designed to be consistent and comparable across sessions, which is more useful than any single "accurate" number. What matters is how your scores move over time, not the absolute value on day one. The more you scan, the more meaningful the data becomes.
Your scans are processed to generate your skin scores and stored securely. We never sell your personal or biometric data. Anonymised, aggregated insights may be used to improve Stella's accuracy over time. Nothing that identifies you.
No. Stella makes appearance-level observations about your skin. It does not diagnose, treat, or assess any medical condition. If you have a skin concern, please see a dermatologist or healthcare professional.
Ideas worth keeping in the record.
Before you change the routine, understand the change.
Start with one scan. Keep the record. See what changes before deciding what to change.
Start your skin record →One scan. Thirty seconds. Start whenever you're ready.
Stella provides personalised skincare suggestions based on your skin's appearance. These are appearance-level observations, not therapeutic advice. Stella is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. If you have a skin concern, please consult a healthcare professional.