All markers

Check out the lists of analyzed biomarkers, and your resulting personalized guidance.

First wellness assessment

A first comprehensive test with over 100+ biomarkers analyzed.

100+ analyzed biomarkers

Personalized action plan

Tailored recommendations based on your results to help improve your health.

5 pillars clearly defined

Follow-up check

6 months after the first check, a second test to compare and track your progress.

60+ analyzed biomarkers

100+ full panel

60+ follow-up panel

Kidney health16

Inflammation10

Nutrients40

Metabolic13

Cardiac13

Liver health15

Body function insights5

Minerals1

Adrenal Function1

Thyroid hormones4

Bone health4

Sexual hormones10

Iron Metabolism2

Hematology10

Immunity7

Prostate markers1

Granular Cylinders

Granular cylinders are tiny tube-shaped particles seen in urine. Picture the inside of kidney tubes as narrow pipes. Granular cylinders are like soft molds of these pipes filled with fine grains. Kidney filters mix proteins and cell fragments inside the tubes. These can pack together and harden into small plugs. These plugs drift out into the urine as cylinders. Very low numbers suggest the pipes stay mostly clear. Higher numbers suggest more debris collects and shapes into these plugs. Balanced levels suggest the kidney tubes handle flow and waste without leaving many grainy molds behind.

SystemKidney health

Effective Osmolality

Effective osmolality is a headcount of dissolved particles in your blood that actually pull water. Imagine your blood as a busy train car and each particle as one passenger. The more passengers on the train, the more crowded it feels and the more water it drags along. Your body adjusts this crowding through the kidneys and hormones, which add or remove water. Counting these active particles gives a clearer picture than only measuring total salts or sugars. Very low levels mean the train is almost empty, and water can shift into cells. Very high levels mean the train is packed, and water can move out of cells. A steady middle range keeps water balance stable and cells comfortable.

SystemKidney health

UACR (urinary albuminuria/creatinine)

UACR is a measure of protein traffic in your urine. Imagine your kidneys as a water filter with a fine mesh that lets water through but keeps useful proteins inside. UACR counts how much albumin protein slips through compared with creatinine, which acts like a steady marker of urine strength. When the filter works well, only tiny traces of albumin pass through. When the mesh weakens, more albumin leaks, and the count rises. Very low values mean almost no protein loss. Very high values suggest the filter works under strain. A balanced UACR shows your body keeps proteins in the bloodstream while still clearing waste through urine.

SystemKidney health

Microalbumine (urines)

Microalbumin in urine is like tiny grains of flour slipping through a kitchen sieve. The sieve is the kidney filter and the grains are albumin proteins. Healthy filters keep nearly all these grains in the blood side. When the filter or the pipe lining strains, more grains pass into the urine. The test counts how many grains pass over a set time. Very low leak suggests tight, clean filters. Rising leak suggests filters work harder and lose some tightness. A balanced level means the filters clear waste but hold on to useful protein. This balance protects blood flow, fluid balance, and steady energy through the day.

SystemKidney health

Albumin / Creatinine ratio

Albumin‑creatinine ratio is a check on kidney filter leaks. Picture each kidney as a kitchen sieve that lets water through but holds back beans. Albumin is like a valuable bean that should stay in the pot, not slip through the holes. Creatinine acts like a marker of how much liquid passes through the sieve. The ratio compares escaped beans to total flow over time using this headcount. Each albumin “bean” in urine shows a tiny gap in the sieve. Very low ratios suggest the sieve holds almost all beans. Very high ratios suggest many beans slip through and strain the filters. A balanced ratio means the filters keep key proteins in blood while letting waste water out smoothly.

SystemKidney health

Urine Ketones

Urine ketones measure ketone bodies, mainly acetoacetate, in a urine sample. Ketones are produced when the body uses fat as a major fuel source instead of glucose. A negative result is expected for most well-fed people and usually means the body is not spilling ketones into urine. Trace or positive results can appear with prolonged fasting, very low-carbohydrate intake, intense exercise, dehydration, pregnancy, or poorly controlled diabetes. This result is interpreted alongside symptoms, blood glucose, hydration status, and the wider urinalysis panel.

SystemKidney health

Creatinine (urines)

Creatinine in urine is a headcount of waste parcels your body sends out. Picture delivery trucks carrying used-up fuel parts to the waste station. Your muscles create creatinine all day as they work. Your kidneys load it into urine trucks and send it out. A higher or lower headcount changes how dense the urine waste stream looks. Very low levels suggest fewer waste trucks leave the station. Very high levels suggest a heavy, concentrated waste traffic. A balanced creatinine headcount means muscles create a steady amount and kidneys clear it smoothly. This balance keeps internal “streets” clear and the waste station working at an efficient pace.

SystemKidney health

Urea / Creatinine ratio

Urea-creatinine ratio is a simple headcount comparison between two waste products. Imagine a factory that uses protein as raw material and muscles as machines. Urea is like leftover scrap from using protein. Creatinine is like worn parts from muscle use. The ratio compares how much protein scrap you make for each worn muscle part. A low ratio suggests less protein scrap compared with muscle use. A high ratio suggests more protein scrap or changes in water balance. Balanced levels suggest that protein use, muscle activity, and waste removal stay in sync. This balance supports steady energy supply and smooth clearing of waste through the kidneys over time.

SystemKidney health

Bicarbonate

Bicarbonate is a key part of your body’s pH control system. You can picture it like a buffer that keeps the “acidity dial” in a safe zone. The lungs and kidneys work together with bicarbonate to keep blood chemistry steady from morning to night. When the body makes more acid, bicarbonate steps in and soaks it up, like a sponge. If bicarbonate stays very low, acids can build up and cells work less smoothly. If bicarbonate stays very high, the balance tilts the other way and normal cell work also slows. A healthy bicarbonate range keeps enzymes, muscles, brain cells, and organs working in a stable environment.

SystemKidney health

Estimated Glomerular Filtration Rate (eGFR)

Estimated Glomerular Filtration Rate is your kidneys’ filter speed. Imagine two large sieves that constantly clean your blood like water running through a filter. eGFR tells you how much blood passes through these filters each minute. The filters separate waste and extra water from useful substances and return clean blood to circulation. When eGFR is low, the filters work more slowly, so waste and fluid can stay longer in the bloodstream. When eGFR is very high, the filters work faster than usual, which can strain the system over time. A balanced eGFR means the filters clean your blood at a steady, efficient pace, keeping fluid and mineral balance stable.

SystemKidney health

Sodium

Sodium is a mineral that acts like tiny water magnets in your blood. Each sodium ion pulls and pushes water, like workers directing buckets along pipes. Your body keeps sodium in a tight range so cells stay the right size. The kidneys adjust sodium and water to balance blood volume and pressure. Nerves use sodium to send signals, like on–off switches, and muscles need it to contract and relax. Very low sodium means the “water magnets” are too few, so water balance and brain function strain. Very high sodium means extra pull on water, which stresses cells and circulation. A balanced sodium level keeps fluid, nerves, and muscles working smoothly together.

SystemKidney health

Potassium

Potassium is like the main electrical wiring inside your cells. Most potassium stays inside cells, while only a small amount circulates in blood. This tiny blood part matters a lot, because it sets the voltage that nerves and muscles use as their starting line. When potassium sits in a healthy window, muscles contract smoothly, nerves send clear signals, and fluid stays balanced between inside and outside cells. If potassium falls too low, muscles and nerves fire less easily and work feels harder. If it runs too high, their signals fire in a confused way and may slow or misfire. Steady potassium keeps body “wiring” safe, stable, and ready for action.

SystemKidney health

Uric acid

Uric acid is a waste marker that forms when your body clears used-up building blocks from cells. Imagine a busy city that bags its rubbish every day. Uric acid is one type of rubbish bag that needs regular pickup through the kidneys. The liver helps fill the bags, and the kidneys load them onto the exit trucks in urine. At moderate levels, uric acid also works like a small shield against damaging molecules. If levels drop very low, this shield weakens and some tissues lose protection. If levels climb very high, bags stack up in the blood and body fluids. A balanced level means steady cleanup, enough protection, and smooth waste flow out of the body.

SystemKidney health

Urea

Urea is a waste product that your body makes when it breaks down protein. Think of it as used fuel that needs a safe exit route. The liver turns protein leftovers into urea, and the kidneys filter urea out into urine. If the headcount of urea particles rises, it suggests the filter clears less waste. If the headcount falls very low, it suggests the body breaks down less protein or clears waste differently. Very low levels can show reduced protein use. Very high levels can show slower removal of waste. A balanced urea level means your liver and kidneys keep protein use and waste removal in steady harmony.

SystemKidney health

Chloride

Chloride is like a crowd of tiny gatekeepers around each cell. Each chloride ion is one gatekeeper that helps control water in and out of the cell. Your gut absorbs chloride from salt in food. Your blood carries it, and the kidneys adjust how much you keep or lose. This keeps your inner “water and acid meter” steady. Very low chloride means too few gatekeepers. Water balance and acid levels then drift, and cells work less smoothly. Very high chloride means too many gatekeepers. Fluids and acid levels shift the other way, and cells feel stressed. A steady chloride headcount keeps your blood, organs, and cells in a comfortable working zone.

SystemKidney health

Creatinine

Creatinine is a waste marker that your muscles make all day. Imagine buckets on a conveyor belt that carry waste to a filter. Your muscles load the buckets with creatinine and your kidneys act as the filter. Healthy kidneys clear most buckets quickly, so only a small number stay in the blood. When kidney filtering slows, more buckets stay on the belt and creatinine rises. Very low creatinine can appear when there is little muscle “factory” working. Very high creatinine suggests the filter removes waste more slowly. A balanced level shows a good match between muscle production and kidney clearing, which protects blood quality and internal balance.

SystemKidney health

We provide additional services to help you act deeper on your health.

Gut microbiome

150 €

Analyze the diversity of your gut microbiome to optimize digestion, immunity, and overall well-being.

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Food response panel

300 €

Get an overview of how your body may react to each ingredient, based on IgG response levels across 50 to 100 foods. Results add context to your food habits, but are not a conclusion on their own.

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Environmental toxicology

120 €

Measure your exposure to heavy metals, pollutants and endocrine disruptors present in your everyday environment.

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Getting started

Lab visits

What does a Lucis membership include?

Here's what's included: • **1 complete and 1 follow-up biological assessment per year**, done in partner labs, covering **100+ biomarkers**. • **Simplified wellness indices** that help you understand key pillars such as **inflammation, energy, metabolism, and hormones**. • **Your private Lucis dashboard**, where you can explore your results, track progress, and access personalized insights. • **A personalized action plan from healthcare professionals**, with guidance to improve your **nutrition, supplementation, sleep, physical activity, environment,** and **mental health**. • **Educational content** to help you understand how your body works and make informed changes. • Option to purchase additional tests Lucis doesn't replace medical diagnosis or prescriptions.

Who can be a Lucis member

Lucis is for people aged 18 and older. Understanding your body's trends gives you the power to make informed decisions about your future. Please note that Lucis is not a medical platform and doesn't replace medical diagnosis or prescriptions.

How does my Lucis membership work?

Once you're a Lucis member, you can book your first blood draw directly from your dashboard. In France, we send a home collection kit to use the morning of the test (in the UK and Portugal, all samples are taken at the lab). You'll follow each step in your private dashboard, with the instructions you need and a notification once lab processing is complete. Your results are generally available about one month after your lab test.

Which tests are included with a Lucis membership?

Lucis membership includes access to 100+ lab tests to explore your current well-being, metabolism, sexual hormones, stress and recovery etc. Add-on tests may be available for an additional cost beyond your full membership. See our [full list of analyzed biomarkers](https://www.lucis.life/en/biomarkers).

Are my health data secured and reliable?

Yes. Over the process, we ensure analytical quality with certified partner laboratories including Eurofins' network. Lucis coordinates standardized workflows with clear labeling, refrigeration, and transport guidance to protect sample integrity. Your data are encrypted, HDS-certified, ISO27001-certified, and compliant with GDPR. Health data are strictly confidential, accessed only by the health professionals reviewing your results, and never shared without your explicit consent.

Is Lucis covered by health insurance?

Currently, Lucis is generally not reimbursed by supplementary health insurance because our comprehensive biological analyses go beyond the standard tests typically prescribed by physicians. We offer complete, personalized assessments that include biomarkers rarely analyzed in conventional medicine. However, some mutual insurance providers may offer partial coverage under "alternative medicine" or "preventive health" plans. We recommend contacting your insurer directly to explore your reimbursement options.

Which wearables and integrations does Lucis support?

Lucis connects to your wearables so your daily signals sit alongside your biology. **Devices supported today:** • **Garmin** watches • **Withings** devices • **Strava** (activity tracking) • **Oura** ring **Coming soon:** Apple Watch and Whoop. **How your data is used:** once a device is connected, your data is synced and securely stored. It's taken into account from your next protocol onward, and only for the metrics relevant to it. Measurements like sleep, activity, heart rate, and recovery are added as extra signals alongside your biomarkers and questionnaire, so the latest data is reflected the next time your protocol is generated. Connecting a wearable doesn't calculate training load (Lucis is a wellness and prevention tool, not a sports performance app), and the information it adds stays educational and preventive. Your wearable data complements your biomarkers and questionnaire; it doesn't replace a blood test or a medical consultation.