Our mission
Your skin is yours, but understanding it has never felt that way. Getting answers has meant an appointment, a price, and a long trial-and-error process.
We’re changing that. Lumeria puts your skin in your own hands: the power to see it, know it, and own its story yourself, at home and on your terms.
Inclusion
It’s built for everyone. The power to understand your own skin shouldn’t depend on your skin color, gender, age, or what you can afford.
Founders
Our story
Lumeria (YC S26) is now backed by Y Combinator. Behind the technology are two founders who have lived this problem from very different angles.
Anthea Guo, Co-Founder & CTO
Anthea’s sister spent eight years chasing her eczema. The cause turned out to be dust in the carpet.
No one caught it because no one was recording anything. Her skin was reacting to her sleep, her home, her products, the air around her, and none of it existed as data. Every dermatologist who took months to see started from zero. Every product she tried was a guess.
Then it happened to Anthea too. In her sophomore year of college she developed a wound that would not heal. It took two months to see a doctor and five to see a dermatologist, and across those five months she was misdiagnosed four times. By the end her skin was covered in rashes and weeping nonstop; she became allergic to her own sweat and went three months barely sleeping because of the itch. The hardest part was staying on prescription after prescription that showed no improvement, because nothing objective could tell her whether any of it was working.
So she built the tool she and her sister never had: one that tracks what is actually changing on your skin alongside what you changed in your routine and your environment, and turns that into something you can act on.
Anthea is an engineer who worked on computational biology at Google, Boehringer Ingelheim, and Berkeley Lab. She has a habit of starting things — the computational biology club at Berkeley, her school newsletter, and a fundraising effort for girls’ education in rural China.
Maryanne Alhallak, Co-Founder & CEO
Maryanne has loved skincare and beauty for as long as she can remember. As a lifestyle creator she went viral within a month, passing 10 million views, and earned more than $40,000 in three months from beauty content for brands like Bubble Skincare and Good Molecules. Her roots, though, are in biotech: she graduated high school at sixteen, and by eighteen had built a seven-time award-winning microfluidics device using miniaturized spectroscopy that she went on to exit.
She also cannot sit still in the face of a problem. After volunteering as a surgical assistant in Syria and seeing how little war-torn regions have to work with, she founded Blueprints for Pangaea at Berkeley, even engineering a self-assisted liver retractor for surgeons operating without an extra pair of hands. Of every problem she has thrown herself at, none has gripped her like this one. Maryanne first imagined Lumeria while shadowing dermatologists, then recruited the best cofounder she could find, Anthea, to build it with her.
Previously worked at
Between them, the team has worked and studied at these institutions. They are not commercial partners of Lumeria.
Traction
150+
Customer Interviews
5
Advisors
2
Clinical Partnerships
We’re hiring
3 roles are open — counsel across IP and regulatory, a dermatologist for the advisory board, and a skin-imaging scientist. Each one reports straight to a founder.