Most analysis was trained on lighter skin and quietly fails on deeper tones. Oyster reads every shade with the same precision, and it is measured to prove it.
One selfie, read on the same 10-point Monk scale from the lightest tone to the deepest, so every customer is read on equal terms.
Two million real skin images across seven countries, weighted toward deeper tones, so the deepest skin is where the analysis starts. That data is the moat, and it grows with every scan.
See the research ↗
Oyster reads skin tone on the Monk Skin Tone Scale, a 10-point scale developed by Dr. Ellis Monk with Google. It runs from the lightest skin to the deepest, so every shopper is read on the same scale.
Read the research ↗
Hyperpigmentation, melasma, post-inflammatory marks and uneven tone are the concerns deeper skin brings to the counter most. Oyster measures each one with a number and a place, so the recommendation fits the skin in front of you.
Read: hyperpigmentation on dark skin ↗Oyster welcomes independent review from the clinicians who see these patients every day. Bring your own customers and check the results on the tones you serve.
Read Oyster Studies ↗
Read on the Monk Skin Tone Scale, from the lightest tone to the deepest.
Three gaps that Oyster was built, from the data up, to close.
Trained mostly on lighter skin, so deeper tones sit outside what the model has seen.
Exposure and colour tuned for light skin wash out the very signals that matter on deep skin.
Blind to hyperpigmentation and post-inflammatory marks, the concerns deeper skin brings most.
Bring your own products and customers, run the analysis on the deepest tones you serve, and see the results for yourself before you commit to anything.