Rated 4.9 ¡ Thousands of 5-star reviews

Resorin Kidney Function Support with Elderberry, Zinc & Vitamin C

  • Kidney Filter Repair
  • Protein Leakage Support
  • Reduces Oxidative Stress
  • Foamy Urine Reduction
93% SOLD

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Lauren J.
Lauren J.

"I'd been concerned about my kidney health for months. Within a couple of weeks of taking ResorinÂŽ I felt less bloated, more comfortable, and my worrying eased. At 67, I finally feel in control of my health again."

47
Clinical studies on elderberry anthocyanins
2,000+
Years of traditional kidney support use
1,200mg
Cold-extracted elderberry per serving
50K+
Orders shipped

Clinically Studied. Kidney Focused. Results You Can Measure.*

When cold-extracted elderberry meets zinc and buffered vitamin C, the result is a formula built specifically for kidney function — not general wellness. Your eGFR is the proof.

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60-day money back guarantee

One Berry. Four Powerful Compounds.

Elderberry Extract

Elderberry Extract

1,200mg per serving of cold-extracted Sambucus nigra — one of the most studied botanicals for kidney and immune support, used for over 2,000 years in traditional medicine to support filtration and fluid balance.

Anthocyanins (C3G)

Anthocyanins (C3G)

Elderberry's signature active compound, cyanidin-3-glucoside is the bioactive behind its kidney research — binding to glomerular capillaries, neutralizing oxidative stress, and supporting nephron repair at the cellular level.

Zinc Citrate

Zinc Citrate

Naturally deficient in most CKD patients, zinc plays a critical role in kidney cell repair and immune regulation. Resorin uses zinc citrate — the most bioavailable form — to restore what CKD depletes.

Buffered Vitamin C

Buffered Vitamin C

Standard vitamin C can stress compromised kidneys. Resorin uses a buffered form that delivers antioxidant protection and collagen synthesis support without the oxalate load that damages kidney tissue.

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Feel Better. Every Day

From kidney filtration to reduced swelling, here's what ResorinÂŽ supports every morning.

  • Kidney Filtration Support
  • Oxidative Stress Defense
  • Fluid Balance & Comfort
  • Healthy Inflammation Response
Resorin Kidney Function Support with Elderberry, Zinc & Vitamin C
Excellent 4.8 | 1319 reviews

Resorin Kidney Function Support with Elderberry, Zinc & Vitamin C

Get It By
Get It By

Real Benefits. Backed by Research.

One cold-extracted elderberry formula. Two capsules a day. Decades of clinical research and 2,000 years of traditional kidney support behind every serving.

Kidney Filtration

Kidney Filtration

Anthocyanins from cold-extracted elderberry bind to glomerular capillaries

Oxidative Stress Defense

Oxidative Stress Defense

CKD accelerates free radical damage to nephrons.

Fluid Balance

Fluid Balance

When kidneys struggle to regulate sodium and fluid, swelling follows.

Immune Regulation

Immune Regulation

Chronic inflammation is the hidden driver of eGFR decline.

Kidney Filtration Support
Oxidative Stress Defense
Fluid Balance & Comfort
1,200mg Cold-Extracted Elderberry
Kidney Filtration Support
Oxidative Stress Defense
Fluid Balance & Comfort
1,200mg Cold-Extracted Elderberry
Kidney Filtration Support
Oxidative Stress Defense
Fluid Balance & Comfort
1,200mg Cold-Extracted Elderberry
Kidney Filtration Support
Oxidative Stress Defense
Fluid Balance & Comfort
1,200mg Cold-Extracted Elderberry
Week 1-2

Easy Start

✓ Simple daily routine with two capsules each morning
✓ No aftertaste, nausea, or digestive discomfort
✓ Gentle on the stomach and easy to tolerate
✓ Feeling comfortable staying consistent

Week 3-4

Daily Balance

✓ Reduced puffiness around ankles, hands, and face
✓ Feeling less heavy and swollen by end of day
✓ Improved energy levels — less afternoon fatigue
✓ Daily routine feels natural and sustainable

Week 5-8

Kidney Support Building

✓ Noticeably less discomfort in the kidney region†
✓ Greater confidence in how your kidneys feel day to day
✓ Many customers begin tracking lab results more closely
✓ Continued ease of daily use with no side effects

Week 9-12

Measurable Results

✓ eGFR improvement reported by customers at their next lab check
✓ Oxidative stress markers beginning to shift
✓ Consistent daily habit designed for long-term kidney support
✓ A routine built around stability, not quick fixes

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Expert Advice from Dr. Steven Chen, Integrative Medicine & Renal Health Specialist

“As we age, one of the most overlooked factors in kidney health is the impact of oxidative stress on the body’s natural filtration pathways. These delicate systems are responsible for maintaining the balance between waste removal and keeping essential proteins in the bloodstream where they belong.

When oxidative stress and cellular strain begin to affect these pathways, filtration efficiency can gradually decline — often without obvious symptoms at first. That’s why supporting these systems early is so important.

A targeted combination of antioxidant support, like standardized elderberry, alongside key nutrients such as zinc and vitamin C, can help maintain healthy cellular function and support the body’s natural filtration processes.

Used consistently, this kind of daily support can play an important role in helping individuals maintain kidney function, support normal protein balance, and feel more confident in their long-term health.”

Money Back Guarantee!

Try Resorin completely risk-free for 30 days - if you're not 100% satisfied with your results, we'll refund every penny, no questions asked. We stand behind our premium elderberry because we know it works.

TRY RISK-FREE TODAY
100% Satisfaction
Fast Shipping
Easy Returns

Money Back Guarantee!

Try Resorin completely risk-free for 30 days - if you're not 100% satisfied with your results, we'll refund every penny, no questions asked. We stand behind our premium elderberry because we know it works.

TRY RISK-FREE TODAY
100% Satisfaction
Fast Shipping
Easy Returns
★★★★★ Rated 4.9 / 5 | Trusted by 10,000+

They Felt the Shift. You Will Too.

5.0 ★★★★★

My eGFR went from 41 to 56 in 90 days.

I've been watching my eGFR decline for 4 years. My nephrologist told me to 'just monitor it.' I started ResorinÂŽ and at my next lab check my number had jumped 15 points. I cried in the parking lot.

eGFR Improvement Kidney Filtration
5.0 ★★★★★

The swelling in my ankles is finally gone.

I had to stop wearing my regular shoes because my ankles were so swollen by afternoon. Within 3 weeks of taking ResorinÂŽ every morning, the puffiness was noticeably better. My husband noticed before I did.

Fluid Balance Swelling Relief
5.0 ★★★★★

Part of my kidney routine now. Non-negotiable.

I take ResorinÂŽ every single morning with my other medications. My nephrologist has no objection and my last two lab results have been the most stable in years. I'm not stopping.

Daily Support Long-Term Results
5.0 ★★★★★

Subtle at first, but my labs tell the story.

The first month I wasn't sure. By month three my creatinine had dropped and my eGFR was up 11 points. I have more energy, less brain fog, and I sleep through the night. It works quietly but it works.

Creatinine Support Energy & Clarity

We're serious about clean health, ask away

Transparency matters when it comes to daily supplements. Below you'll find answers to the most common questions about our elderberry supplement

How do I take Resorin capsules? +

Take 2 capsules daily with food and water. For general maintenance and immune support, take 2 capsules once daily, preferably with breakfast or lunch. At the first signs of illness (sore throat, fatigue, etc.), you may take 2 capsules twice daily (morning and evening) for 3-7 days for acute support, then return to the maintenance dose. Do not exceed 4 capsules per day without consulting a healthcare professional.

Can I take it with other medications or supplements? +

Tonava can generally be taken alongside most vitamins and supplements. However, if you are taking:

  • Immunosuppressant medications (e.g., for organ transplants or autoimmune conditions): consult your doctor, as elderberry may modulate immune function
  • Diabetes medications: monitor blood sugar closely, as elderberry may improve insulin sensitivity
  • Diuretics: elderberry has mild diuretic effects; consult your healthcare provider
  • Blood thinners: vitamin C in high doses may interact; stay within recommended dosage

Always separate Tonava from tetracycline or quinolone antibiotics by at least 2 hours, as zinc can reduce their absorption

What are the possible side effects? +

Resorin is generally well-tolerated with minimal side effects when taken as directed. Some users may experience mild digestive changes as their gut microbiome adjusts (this typically resolves within a few days). High doses of zinc (above the recommended amount) may cause nausea or metallic taste—stick to the suggested 2-4 capsules per day. If you experience any unusual symptoms, discontinue use and consult a healthcare professional.

Who should avoid using Resorin? +

Many customers take Resorin alongside their medications without issues, but you should always consult your doctor first. Aged garlic is generally well-tolerated, but your healthcare provider needs to monitor your numbers as they may improve and require medication adjustments.

What's your money-back guarantee? I've wasted money on supplements that didn't work before. +

We offer a 30-day money-back guarantee because we're confident in Elderberry Formula. If you don't see improvements within 30 days, simply return the bottles (even if empty) for a full refund. No questions asked.