MIT Sloan
Global Innovation & Leadership
See if your skincare is actually working.
Your mirror only shows you today. Stella shows you what's changing: a free 30-second scan, tracked over time and tested against dermatologists.
Connect Apple Health, Oura, Fitbit and more.
Actual results.
Higher is better on every score.
Niacinamide serum
Redness, right cheek · Jan to Apr 2026
Retinoid serum
Pigmentation, left cheek · Aug 2025 to Oct 2026
Laser treatment
Pigmentation, left cheek · Jul 2026
From one scan to your own skin history.
- 1Scan your skin.
- 2Build your history.
- 3Add your products.
- 4Talk to your skin.
How Stella measures up.
skin scores from one 30-second scan, each from 0 to 100
steady across repeat scans, where 1.0 is perfect
as close to dermatologists as they are to each other, on six signs
Join Skin Stories.
“I'm loving the app, so so good to track my skin”
— Eshiley“I'd never really paid attention to my skin till I start using Stella.”
— Tim“it has motivated me to use my products more and think about what I'm using/why”
— Rebecca“I love the app already, it's such a unique, intelligent idea!”
— Georgia“the app is amazing”
— Alysha
Your sleep and activity, beside your skin.
Works with
Skin changes. Most people only see fragments.
Dr. Alice Rudd · Dermatologist · Co-founder of Stella
Read why Stella exists →Built across innovation, engineering and medicine.
Purdue University
Engineering
Monash University
Medicine
Institutions are listed for team background only. No affiliation or endorsement is implied.
★★★★★“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.
21 scores of how your skin looks, each from 0 to 100: lines, volume, tone, blemishes and surface. See all 21 →
About 30 seconds. You use your phone camera in good lighting. No special equipment needed.
When your skin hasn't changed, your trend holds steady: 0.94 reliability across 21 scores, where 1.0 is perfect. On six signs (redness, pigmentation, fine lines, breakouts, dark circles and post-breakout marks), Stella agrees with dermatologists 92% as closely as they agree with each other. Read the research →
Your scans are private to you, and we never sell them. If you accept a Skin Stories offer, you agree to let that skincare brand view your scan images and skin metrics for part of your record. Brands never see your name or contact details.
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.
Running a skincare brand? For Brands →
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.