HomeWhat We TestLiver & Kidney Function
VitalDrop Biomarker Panel

Liver & Kidney Function

Your liver and kidneys quietly handle detoxification, filtration, and protein balance. Monitor them before supplements, medications, or lifestyle catch up to you.

Why liver & kidney function matters

The liver and kidneys are your body's primary filtration and detoxification organs. The liver metabolizes medications, alcohol, supplements, and hormones and synthesizes essential proteins. The kidneys filter waste, regulate blood pressure, and maintain fluid and electrolyte balance. Both are remarkably resilient — which is exactly why damage can accumulate silently for years before symptoms appear.

People on performance supplements, regular medication, high-protein diets, or with a family history of organ disease benefit most from proactive monitoring. Creatinine and eGFR are inexpensive, sensitive markers that flag kidney filtration early — often before any symptoms.

  • eGFR estimates kidney filtration rate — the clinical standard for detecting chronic kidney disease early.
  • Creatinine reflects kidney function; rising trends warrant prompt follow-up.
  • Together they give a complete picture of kidney filtration efficiency.
  • Essential baseline for anyone on long-term medications or high-protein diets.

What we measure

Reference ranges are general guidelines. VitalDrop emphasizes your personal trend over time rather than a single in-or-out snapshot.

Creatinine

A waste product filtered by the kidneys. Blood levels reflect kidney filtration efficiency.

Reference rangeMen 0.7–1.3 · Women 0.6–1.1 mg/dL

eGFR (Estimated Glomerular Filtration Rate)

Calculates how efficiently your kidneys filter blood. The clinical standard for kidney health.

Reference rangeOptimal > 90 mL/min/1.73m²

What affects these markers

  • Medications and over-the-counter pain relievers
  • Alcohol consumption
  • Performance and herbal supplements
  • High-protein or very restrictive diets
  • Blood pressure and cardiovascular health
  • Hydration status

How VitalDrop helps

  • Monthly trends catch gradual filtration changes long before annual physicals.
  • Useful baseline before starting new supplements, medications, or dietary protocols.
  • Physician review identifies results needing nephrology follow-up.
Medically reviewed

Reviewed by Dr. Hassan Nasser

Medical Director — www.detroitfacemd.com

Board-certified facial plastic & reconstructive surgeon; clinical reviewer for VitalDrop laboratory insights. Verified at www.detroitfacemd.com

This content has been clinically reviewed by a board-certified physician for medical accuracy. It is educational and not a substitute for personalized medical advice, diagnosis, or treatment. Always consult your own clinician with questions about your results.

Frequently asked questions

Creatinine is a measured waste product in your blood; eGFR is a calculated estimate of kidney filtration rate derived from creatinine, age, sex, and body size. eGFR is the clinical standard because it normalizes creatinine across people, making trends and comparisons more meaningful.

Scientific references

Content informed by peer-reviewed guidelines and literature.

  1. 1.KDIGO Clinical Practice Guideline for Chronic Kidney Disease. Kidney Disease: Improving Global Outcomes (2024).
  2. 2.Creatinine and Kidney Function Assessment. Clinical Chemistry (2020).

Explore other categories

Track liver & kidney function monthly.

One virtually painless at-home collection. 20+ biomarkers. Physician-reviewed results in 72 hours.

Subscribe — $79/Month