Features
One photograph.
A shade list you
can trust.
CeySkin does three things properly: it works out what your skin actually is, it finds shades that genuinely match it, and it keeps anything you react to away from you entirely.
Everything below is specified and building. Where something arrives after launch, this page says so rather than implying otherwise.
The first five minutes
Three steps, and done.
Tell it what to keep away from you
Before anything else, you declare what you react to. Pick from the common culprits or type your own. This profile outranks every other signal in the system for as long as you use it.
Stored on your phone, editable at any time
Step 1 of 4
What should we
keep away from you?
Take one photograph
A guide frames your face and checks the light before the shutter will fire. Too dim or too bright and it says so rather than quietly returning a poor reading. Retake as often as you like.
Front or rear camera, or an existing photo
Analyse
Light looks good — hold still
Read the result, and the reasoning
Your Monk level and undertone come back in about five seconds, with shades ranked by measured colour distance. Each one carries its ingredients, its match score, and a plain explanation of why it surfaced.
Anything on your allergen list is already gone
Best match
Deep Umber 420
Atelier Nº7
96
ΔE 1.1
Why this one
Sits 1.1 from your reading — closer than your eye can resolve. Its warm undertone agrees with yours, and it clears your fragrance and paraben filters.
Everything it does
Five parts, in order of importance.
Safety outranks matching, and matching outranks convenience. When two of them disagree, the higher one wins — every time, without a setting to change it.
Analysis
What your skin actually is
Guided capture
Lighting and framing checked before the photo is taken.
478-point face mesh
Landmark extraction on your device, in under half a second.
Monk classification
Placed on the 10-level scale with a stated confidence.
Undertone detection
Warm, cool, neutral or olive — read from chromaticity, not guessed.
Matching
What will actually suit you
Cross-brand catalogue
Curated shades ranked on colour science, not on placement fees.
Perceptual ranking
Ordered by measured distance from your reading, nearest first.
Undertone weighting
Shades that agree with your undertone are lifted in the ranking.
Explained results
Every match states why it was chosen, in plain language.
Safety
What must never reach you
Allergen profile
Common allergens as one-tap chips, plus anything you add yourself.
Hard exclusion
Matching products are removed outright, not flagged or down-ranked.
Full INCI lists
Every ingredient, with yours highlighted where they appear.
Verified ethics
Vegan and cruelty-free filters backed by evidence, not self-reporting.
Shopping
How you get hold of it
Saved shades
Keep a running list, sorted by match, price or recency.
Store locator
Nearby stockists by distance, opened straight into maps.
Offline access
Your saved matches stay readable with no signal at all.
Preferences
How you narrow it down
Budget ceiling
Set what you will spend and results respect it.
Finish preference
Matte, dewy, satin, natural or luminous — prioritised, never hidden.
Speed
Fast enough to
use in a shop.
A shade finder that takes half a minute gets abandoned at the shelf. These are the budgets each stage is built against, not averages measured afterwards.
| Stage | Budget | Runs |
|---|---|---|
| Face mesh extraction | < 500ms | On your device |
| Colour conversion | < 50ms | On your device |
| Shade recommendations | < 500ms | Server |
| Allergen check, per product | < 10ms | Server |
| Photograph to results | < 5s | End to end |
What arrives when
Told straight.
Plenty of pre-launch pages list everything as though it already exists. This is the actual build order — the accuracy and safety work first, the conveniences after.
At launch
P0 · P1- Guided capture and on-device face mesh
- Monk classification and undertone detection
- Perceptual shade ranking across the catalogue
- Allergen profile and hard-constraint filtering
- Full ingredient transparency
- Saved shades
Shortly after
P2- Store locator and stockist directions
- Budget ceilings
- Verified vegan and cruelty-free filters
- Skin type assessment for finish suggestions
Later
P3- Finish preference weighting
- Price comparison across stockists
Put it in your hands.
Early access opens across all ten Monk levels. Leave your email and we will tell you the moment yours is ready.