---
product_id: 65320390
title: "Premium Colloidal Silver 40ppm 1000mL ● Optimal Concentration Formula, Smaller Particles, Better Results ● Laboratory Certified ● Liquid Silver Made in EU ● Free Spray Bottle to Fill & Ebook Included"
brand: "institut katharos"
price: "404 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Institut Katharos"
url: https://www.desertcart.pl/products/65320390-premium-colloidal-silver-40ppm-1000ml-optimal-concentration-formula-smaller-particles
store_origin: PL
region: Poland
---

# 40ppm ultra-pure silver concentration Smallest silver particles for max absorption Made & lab-certified in EU (France) Premium Colloidal Silver 40ppm 1000mL ● Optimal Concentration Formula, Smaller Particles, Better Results ● Laboratory Certified ● Liquid Silver Made in EU ● Free Spray Bottle to Fill & Ebook Included

**Brand:** institut katharos
**Price:** 404 zł
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your wellness game with pure, potent silver — because your health deserves the best!

## Quick Answers

- **What is this?** Premium Colloidal Silver 40ppm 1000mL ● Optimal Concentration Formula, Smaller Particles, Better Results ● Laboratory Certified ● Liquid Silver Made in EU ● Free Spray Bottle to Fill & Ebook Included by institut katharos
- **How much does it cost?** 404 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/65320390-premium-colloidal-silver-40ppm-1000ml-optimal-concentration-formula-smaller-particles)

## Best For

- institut katharos enthusiasts

## Why This Product

- Trusted institut katharos brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Chic Packaging:** Amber glass bottle + recycled cardboard reflect your commitment to sustainability and purity.
- • **On-the-Go Wellness:** Free 30ml spray bottle and measuring cup included—carry your health ritual wherever life takes you.
- • **Nano-Particle Advantage:** Smaller silver particles mean faster absorption and superior results you can trust.
- • **Pure Power in Every Drop:** Optimized 40ppm concentration ensures potent, effective colloidal silver with no fillers or impurities.
- • **Certified Quality Assurance:** Triple independent lab certifications guarantee purity and potency for your peace of mind.

## Overview

Institut Katharos Premium Colloidal Silver delivers a lab-certified 40ppm concentration of ultra-pure silver particles suspended in ultrapure water. Made in France with eco-friendly packaging, it includes a free travel spray bottle and an educational ebook, empowering you with a trusted, natural solution for microbial support and everyday wellness.

## Description

Premium Colloidal Silver 40ppm 1000mL ● Optimal Concentration Formula, Smaller Particles, Better Results ● Laboratory Certified ● Liquid Silver Made in EU ● Free Spray Bottle to Fill & Ebook Included : desertcart.co.uk: Health & Personal Care

Review: A genuine and quality product from a brand I trust - I have been using Colloidal Silver for eleven years now and I would never be without it in my cabinet. Institut Katharos Colloidal Silver is a high quality brand which I have found to be very effective at what it does. Silver has been used for thousands of years for microbial infections due to its anti-bacterial properties. This particular brand comes with a handy little spray bottle which is of great use for administering externally. I have used this colloidal silver effectively to prevent infection in several ways as follows: ✅ Applied it topically on open wounds to clean and protect ✅ Used the spray bottle in nose and mouth as a preventative measure ✅ Applied on my cats paw when she had a cut ✅ Applied on cold sores ✅ Used internally to relieve infections My family have also used this product with success for some of these issues. Having tried a few brands of Colloidal Silver, I have been using Institut Katharos Colloidal Silver for 9 years now. It is a brand I completely trust and is a permanent fixture in my first aid box.
Review: Health product that works. - I like this product it is very old school but works well.

## Features

- ●●● POWERFUL COLLOIDAL SILVER ●●● Just two ingredients. Yes, really. All we use to deliver you premium silver colloidal is ultrapure water & 40ppm silver. We have carefully formulated our colloidal silver liquid to make sure you are receiving an optimal concentration. No fillers, no impurities, just pure, nature-derived silver colloidal. We only use the smallest silver particles. Why? ​The smaller the particles, the better the results.
- ●●● MORE THAN JUST COLLOIDAL SILVER ●●● Our mission as a team is to impart our love and knowledge of colloidal silver to you. The free E-book included with every purchase gives you an in-depth insight into the incredible world of Colloidal silver and how it can improve your life. The best part? All orders arrive with a beautiful 30ml spray to fill to conveniently take your colloidal silver with you anywhere. A handy measuring cup included makes sure you always pour the correct amount.
- ●●● NATURALLY SOURCED PURITY ●●● All of our products harness the power of Mother Nature. Water carefully selected by our passionate team infuses your colloidal liquid with no less than ultra-pure water - the finest on the market. Our respect and admiration for nature overflow into the beautiful recycled cardboard packaging. When you open up the package you will see your colloidal silver encased in a pure amber glass bottle. Why not plastic? We refuse to diminish the purity of your product.
- ●●● PROFESSIONAL LABORATORY CERTIFICATION ●●● As a company, we believe in total transparency with our customers. Our products have been carefully scrutinized by 3 independent laboratories to make sure they are formulated to perfection. On our website, you can easily access lab certification which confirms our 40ppm concentration and the use of ultrapure water. Your trust is always what we strive to earn and keep.
- ●●● PRODUCED AND PACKED BY OUR DEDICATED TEAM ●●● All our prepping and packaging takes place in France. We are a small, passionate team who have fallen in love with delivering the highest quality colloidal silver to our customers and reading their incredible - life-changing - stories. As a company, we only sell colloidal silver; delivering you quality products is our - tunnel vision - focus.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B018STNJIE |
| Age Range Description | All ages |
| Allergen Information | Contains: Soy Free |
| Benefits | Urinary Health |
| Best Sellers Rank | 2,309 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 1 in Colloidal Silver |
| Brand | Institut Katharos |
| Brand Name | Institut Katharos |
| Concentration | 40 part per million |
| Country Of Origin | France |
| Customer Reviews | 4.5 out of 5 stars 20,221 Reviews |
| Diet Type | Vegetarian |
| Flavour | Unflavoured |
| Item Form | Spray |
| Item Volume | 1 Litres |
| Item Weight | 3.09 Pounds |
| Item form | Spray |
| Manufacturer | Institute Katharos |
| Manufacturer Part Number | 003 |
| Material Type Free | BPA Free |
| Model Number | 003 |
| Number of Items | 1 |
| Primary Supplement Type | Iron |
| Primary supplement type | Iron |
| Product benefits | Urinary Health |
| UPC | 602561302502 |
| Unit Count | 1000.0 millilitre |
| Unit count | 1000.0 millilitre |

## Product Details

- **Brand:** Institut Katharos
- **Diet type:** Vegetarian
- **Flavour:** Unflavoured
- **Item form:** Spray
- **Item volume:** 1 Litres
- **Item weight:** 1.4 kg
- **Number of items:** 1
- **Primary supplement type:** Iron
- **Product benefits:** Urinary Health
- **Unit count:** 1000.0 millilitre(s)

## Images

![Premium Colloidal Silver 40ppm 1000mL ● Optimal Concentration Formula, Smaller Particles, Better Results ● Laboratory Certified ● Liquid Silver Made in EU ● Free Spray Bottle to Fill & Ebook Included - Image 1](https://m.media-amazon.com/images/I/713wZef6rBL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is it in a glass bottle**
A: Yeah, both are glass.

**Q: Not sure his small the silver particle has to be to determined it as nano...are they Nana? Size I'd a human cell?**
A: The ionic silver has nanoparticles 0.15 nanometres and the Colloidal 1-5 nanometres. The smaller particles are more bioavailable and my understanding is they do pass over the human/animal cell barrier.

**Q: Can u ingest this and use it as a cleanse**
A: Yes definitely as me and the dogs use it, did you read the ebook sent to your email?

**Q: Has anyone got the correct link to the ebook the one I got in the little leaflet with this isn’t working**
A: I didnt get an e mail and the address on leaflet doesnt work. I know they used this before antibiotics were invented in the first world war!

## Customer Reviews

### ⭐⭐⭐⭐⭐ A genuine and quality product from a brand I trust
*by R***Y on 13 March 2026*

I have been using Colloidal Silver for eleven years now and I would never be without it in my cabinet. Institut Katharos Colloidal Silver is a high quality brand which I have found to be very effective at what it does. Silver has been used for thousands of years for microbial infections due to its anti-bacterial properties. This particular brand comes with a handy little spray bottle which is of great use for administering externally. I have used this colloidal silver effectively to prevent infection in several ways as follows: ✅ Applied it topically on open wounds to clean and protect ✅ Used the spray bottle in nose and mouth as a preventative measure ✅ Applied on my cats paw when she had a cut ✅ Applied on cold sores ✅ Used internally to relieve infections My family have also used this product with success for some of these issues. Having tried a few brands of Colloidal Silver, I have been using Institut Katharos Colloidal Silver for 9 years now. It is a brand I completely trust and is a permanent fixture in my first aid box.

### ⭐⭐⭐⭐⭐ Health product that works.
*by E***C on 13 April 2026*

I like this product it is very old school but works well.

### ⭐⭐⭐⭐⭐ The WHY, HOW and WHEN. One of the best Colloidal silver products on the market, why and tips on review. Try it = Love it
*by P***S on 8 September 2016*

!Note: The manufacturer supplied a review or discounted sample for my own evaluation. I only accept / request items that I'm interested in and the opinion of the product is my own personal view. ***PERSONAL OVERALL OPINION*** This seems to be one of those products that when you come across the products page on Amazon, you think ??? What on earth is this? But then, when you start gathering information, on everything that it can actually do, and one feels like WOW, really!?! At least, been honest, these were my thoughts about this product. Now that I have tried it for over a month… Would I buy it again? YES, but instead of the offered small bottle, I would simply buy the big one. Although, I'm grateful for the opportunity given, as a little product goes a long way and I have been able to discover an amazing and unknown product to me. In order to complete my review, in case it helps, I am sharing all the info I have on the product, so you know exactly what this product is, what it's used for and how. The best way to describe this product is as a natural antiseptic, which by what I have read, it has been used for over 6000 years (so it must be effective) It's important to remember and I must point out, without getting into too much detail, that without any negative reports or any health related issues (that I am aware of, after a lot of reading) that the ingestion of colloidal silver was banned in the European Union at the beginnings of 2010. This is in fact what many refer to as a "Worldwide Battle". As a very brief overview, we could simply say, that the government tries to make it very difficult to sell silver products as Colloidal Silver, as a food supplement because it directly competes with the antibiotic market (makes a lot of sense to me) In the United States, Australia, New Zealand and many other countries Colloidal Silver is still greatly used as a food supplement. ***How can we use colloidal silver?*** We can: *Ingest orally I have taken it orally and I'm standing on my two feet better than ever ;) *Breathe it's vapours / inhale it With a nebuliser, a facial steamer (much cheaper) or by the old pan and towel method. *External applications Apply it on cuts, burns, grazes.. On humans as well as on our pets ;) ***What can it be helpful for?*** Orally *Fatigue *Gastro-intestinal problems *Low immune system *Infections (in general) Inhaling it's vapours *Respiratory infection *Colds *Pneumonia *Bronchitis *Sinusitis External applications *Burns *Skin irritations *Bacterial skin infections *Cuts *Grazes ***Anything important to know?*** That if you're taking it orally, you can't use a metal spoon, as it reduces the effectiveness. The kiddies syrup plastic spoons or "calpol" syringes are the easiest to use. Always leave the product under the tongue, for one minute before swallowing (for better absorption) Taste is not too bad ;) ***How much do I take?*** ***How do I apply it?*** Orally As a nutritional supplement: ½ a teaspoon /2.5 ml per day To boost immune system: 2 teaspoons /10ml per day. 5ml each time on an empty stomach For temporally illnesses as a bad cold etc.: 1 teaspoon / 5ml up to 3 times a day (morning, at noon and at night). Total of 15ml per day. For long term treatments (several months): 2 teaspoons per day/ 10ml per day. With a nebuliser / inhalation Put 2 teaspoons into the nebuliser container, turn it on and breathe slowly and deeply for around 15 minutes (or until the liquid has disappeared) whichever happens first. Repeat three times a day for colds, pneumonia, bronchitis and sinusitis. External applications - On skin You can wet a bandage or a dressing in colloidal silver and apply it on the area. You can also spray it directly on the area to treat. ***What about my Pets?*** As with humans it is possible to use colloidal silver either externally or internally. External use: Sprayed to the required area, at least 3 times per day, for at least one week. Internal use: Administered with a feeding syringe or adding it into your pet’s water or food. +++PROS+++ + 1 Product with many uses + Easy application + Taste is not bad + Does not seem to sting on skin applications. I have one daughter that has complained on a little graze, but she was moaning before I even touched the area, so?!? Not sure on that. ;/ My son, said it didn’t sting on a paper cut (he is younger than my girl) + Effective After having a few internal infections from a non-completed surgery earlier this year, I have been on 3 courses of two different antibiotics at once. As soon as I seem to recover and the treatment is finished, infection comes back shortly after. It has been bringing me down greatly. Finally I have used Colloidal Silver for the past month… And so far (fingers and toes crossed) Infection has not come back this time. I even feel better than before as it seems to help with overall fatigue. I will make sure, we never run out of this product. + Value for money For its numerous uses Because a little goes a long way. ***PERSONAL TIP*** If comparing prices and brands, as we all do. Always check the ppm/ml contents of the product. There is another ones been sold at the same price, and only contain 10ppm/100ml Which is 4 times less silver than in this Colloidal Silver from Institut Katharos. Therefore this Colloidal Silver is one of the best and most concentrated ones in the market. The water used to dilute the product is also ultra-purified and the pureness of the silver is 96% ionic silver (one of its purest forms) ---CONS--- None ***WHAT WOULD I IMPROVE / CHANGE?*** On the box it says, expiry date, from 6 months of opening. But my bottle already came open with the spray nozzle on, so…???!!! That has confused me a little. Besides that small comment, I am very happy I have discovered this superb and effective product and will always have a bottle at home. From a review request to a loyal customer.

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-25*