Bio-engineered skincare that actually listens to your skin.
A 90-second at-home test reads your microbiome and barrier. Our compounding lab in Boulder diagnoses, doses, and ships a personalized 8-week regimen within 72 hours — no guessing, no generic prescriptions.
Six numbers our legal team has cleared for publication. Every figure below comes from a third-party audit, a peer-reviewed paper, or a verified review platform.
- 92.4% Concordance with in-clinic dermatologist assessments across 14,200+ tests since 2021. CLIA-validated diagnostic, SGS audit 2023.
- 142,000+ Customers shipped across the US, Canada, UK, and Germany. Internal fulfillment ledger, Q1 2024.
- 4.8/5 Average rating across 23,400+ verified reviews. Trustpilot, last refreshed this morning.
- 84% Subscription retention past month six. Reorder cadence every 56 days. Subscription analytics, March 2024 cohort.
How a 90-second home test becomes a personalized 8-week regimen on your doorstep.
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01
T + 00:00
Sample at home
A single-use microfluidic cartridge collects sebum and stratum-corneum cells from your cheek and jawline. Ninety seconds, no blood, no shipping refrigeration required.
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02
T + 24:00
Diagnose in the lab
The cartridge is read at our Boulder 503B facility. We map your barrier integrity, microbiome diversity, and inflammatory markers against our reference library.
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03
T + 48:00
Compound the formula
A compounding pharmacist writes your dose against a 41-ingredient API library — ceramide ratios, niacinamide strength, occlusive base — then batches a 56-day supply.
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04
T + 72:00
Ship, in carbon-neutral cold chain
A board-certified dermatologist reviews flagged regimens before release. The box arrives in biodegradable refill pods. The first 8 weeks begin the day you open it.
Your second bottle is not your first bottle. The formula learns between refills.
Static "personalized" brands send you the same formula in a different bottle. We re-dose from the signal you're already producing.
Every morning, your phone asks a four-question skin diary — irritation, hydration feel, sleep, stress. The responses become telemetry that flows into the same 41-ingredient library your first regimen came from.
When your barrier integrity climbs, the occlusive base softens. When a new inflammatory marker shows up, the ceramide ratio shifts before you notice the flare. Seventy-one percent of subscribers see measurable improvement in their primary concern by week four.
— Theo Kandel, PhD, Co-founder & Computational Biology Lead
Evidence, not endorsements.
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I.
Eleven peer-reviewed studies
Including the March 2024 Journal of Clinical and Aesthetic Dermatology paper on ceramide-restore efficacy in sensitive-skin phenotypes. Full bibliography on the Journal.
Read the bibliography → -
II.
2024 CEW Beauty Award — Skincare Innovation of the Year
Also named "Best in Personalized Beauty 2024" by Allure and Glamour. The only derm-brand partner of the National Eczema Association.
See the awards ledger → -
III.
Three issued patents on microfluidic skin barrier sampling
US 11,890,332 · US 11,956,433 · US 12,041,118. The cartridge in your kit is the same one we filed the first claim on.
Technical overview → -
IV.
Twenty-two clinicians on the advisory board
Including nine board-certified dermatologists who review every flagged regimen before it ships — not just an algorithm. Meet the masthead on the About page.
Meet the board →
Start with the test, not the product.
Your regimen is built from the result.
The first diagnostic kit is on us. Ninety seconds at your kitchen table. A compounded 8-week regimen on your doorstep three days later. No prescription required.
Inside the box: one microfluidic cartridge, a prepaid return mailer, alcohol prep pad, illustrated 12-page guide, and a code that unlocks your skin dashboard. Formulation begins the morning your sample is logged at the lab.