--- product_id: 48003983 title: "Highest Purity Colloidal Silver 300mL ● 40 PPM ● Free Spray to Fill ● Superior Concentration, Smaller Particles, Better Results ● Certified by 3 Independent Laboratories ● Institut Katharos" brand: "institut katharos" price: "€ 51.10" currency: EUR in_stock: true category: "Institut Katharos" url: https://www.desertcart.hr/products/48003983-highest-purity-colloidal-silver-300ml-40-ppm-free-spray-to store_origin: HR region: Croatia --- # Certified by 3 labs Includes portable 30ml spray 40 PPM ultra-concentration Highest Purity Colloidal Silver 300mL ● 40 PPM ● Free Spray to Fill ● Superior Concentration, Smaller Particles, Better Results ● Certified by 3 Independent Laboratories ● Institut Katharos **Brand:** institut katharos **Price:** € 51.10 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your wellness game with the purest, most potent colloidal silver! ## Quick Answers - **What is this?** Highest Purity Colloidal Silver 300mL ● 40 PPM ● Free Spray to Fill ● Superior Concentration, Smaller Particles, Better Results ● Certified by 3 Independent Laboratories ● Institut Katharos by institut katharos - **How much does it cost?** € 51.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48003983-highest-purity-colloidal-silver-300ml-40-ppm-free-spray-to) ## 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 - • **On-the-Go Convenience:** Free refillable 30ml spray bottle for effortless daily use anywhere. - • **UltraPure Type 1 Water:** Laboratory-grade purity ensures unmatched quality and safety. - • **Expertly Crafted in France:** Specialized, in-house production guarantees premium quality control. - • **Triple Lab Certified Purity:** Transparency you can trust with independent verification. - • **Powerful 40 PPM Concentration:** Scientifically proven higher potency for superior effectiveness. ## Overview Institut Katharos Highest Purity Colloidal Silver offers a premium 40 PPM concentration made with ultra-pure Type 1 water, verified by three independent laboratories. Packaged in amber glass to preserve purity, it includes a free refillable 30ml spray for convenient use. Proudly produced in France with specialized expertise, this product delivers scientifically backed antimicrobial benefits trusted by thousands. ## Description From the brand It was in October 2014 that Jean, our founder, heard about colloidal silver for the first time. Taken aback, he discovers its incredible merits and wonders why this solution is so little known to the general public. It was in the face of this observation that the Katharos Institute was born and it has a clear mission: to make the world aware of the extraordinary qualities of this thousand-year-old product! What makes our company unique? The feeling of having a mission: We are fortunate to be able to offer you this product and are aware of this great responsibility. Why we love what we do? We love colloidal silver and the impact it has on you. The whole team carefully reads each of your opinions and that gives us the energy to serve you on a daily basis. Why do we only make colloidal silver? We are convinced that manufacturing with care in France only colloidal silver is the best proof of quality What makes our company unique? The feeling of having a mission: We are fortunate to be able to offer you this product and are aware of this great responsibility. Why we love what we do? We love colloidal silver and the impact it has on you. The whole team carefully reads each of your opinions and that gives us the energy to serve you on a daily basis. Why do we only make colloidal silver? We are convinced that manufacturing with care in France only colloidal silver is the best proof of quality A complete range. Gel, liquid, small format, economical format ... Our colloidal silver is available in 7 different packaging. A complete range. Gel, liquid, small format, economical format ... Our colloidal silver is available in 7 different packaging. Is the bottle made of glass? Yes. Although more expensive and fragile, we chose glass to maintain the purity of the solution. No compromise on quality! What is the expiration date? You can store colloidal silver for 30 months without opening it. Once opened, you have 16 months to use it. Where can I find the Ebook? Upon your purchase, you will receive an email within 3 days including your Ebook. You can also download it from the QR code on the packaging or label. Is the bottle made of glass? Yes. Although more expensive and fragile, we chose glass to maintain the purity of the solution. No compromise on quality! What is the expiration date? You can store colloidal silver for 30 months without opening it. Once opened, you have 16 months to use it. Where can I find the Ebook? Upon your purchase, you will receive an email within 3 days including your Ebook. You can also download it from the QR code on the packaging or label. Discover our Sprays & Gel ! Visit the store Discover our Sprays & Gel ! Visit the store Discover our bottles ! Visit the store Discover our bottles ! ## Features - ✅ MORE CONCENTRATED FOR INCREASED EFFECTIVENESS ✅ After more than a year of research, we have accomplished what few others have achieved: Producing concentrated colloidal silver at 40 PPM via low-voltage electrolysis. This is of paramount importance since a more concentrated solution is more effective, as demonstrated by a peer-reviewed scientific study published in 2010 in the journal Applied Microbiology and Biotechnology. - ✅ 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. - ✅ WATER OF EXTREME PURITY ✅ We chose the purest water available - Type 1 UltraPure Water. It is used for the most critical laboratory operations, as in molecular biology. It must be pointed out that most colloidal silver solutions contain type 2 or 3 ultrapure water, which can contain up to 100 times more bacteria than type 1 ultrapure water! In order to maintain this high level of purity, we have chosen to use amber glass bottles. - ✅ SOLUTION CERTIFIED BY 3 INDEPENDENT LABORATORIES ✅ Many companies have abused consumers' trust and are quick to have less PPM than advertised. In order to demonstrate our earnestness, we have published all the analyses that certify our concentration at 40 PPM as well as our use of type 1 ultrapure water, on our website. We are the only company in the industry to share the results of our product analyses with our users. - ✅ WE ARE SPECIALISTS AND PRODUCE OUR SOLUTION OURSELVES ✅ Many companies do not mind subcontracting the production of their colloidal silver at the expense of quality. Often, these same companies also offer dozens of other outsourced products. We are proud to specialise in colloidal silver - in fact, we have been proudly producing, packaging and selling our solution ourselves for many years. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01FDZEZJS | | ASIN | B01FDZEZJS | | Age Range Description | All Ages | | Allergen Information | Contains: Soy Free | | Benefits | Urinary Health | | Best Sellers Rank | 12,662 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 7 in Colloidal Silver | | Brand Name | Institut Katharos | | Concentration | 40 part per million | | Country Of Origin | France | | Country of origin | France | | Customer Reviews | 4.6 4.6 out of 5 stars (7,778) | | Customer reviews | 4.6 4.6 out of 5 stars (7,778) | | Diet Type | Vegetarian | | Flavour | Unflavoured | | Is discontinued by manufacturer | No | | Item Form | Spray | | Item Volume | 0.3 Litres | | Item Weight | 5 Grams | | Item model number | 002v | | Manufacturer | Institut Katharos | | Manufacturer | Institut Katharos | | Manufacturer Part Number | 007 | | Material Type Free | BPA Free | | Model Number | 002v | | Number of Items | 1 | | Primary Supplement Type | Zinc | | Product Dimensions | 6.5 x 6.5 x 15.1 cm; 5 g | | Unit Count | 1 count | ## Product Details - **Brand:** Institut Katharos - **Diet type:** Vegetarian - **Flavour:** Unflavoured - **Item form:** Spray - **Item volume:** 0.3 Litres - **Item weight:** 5 Grams - **Number of items:** 1 - **Primary supplement type:** Zinc - **Product benefits:** Urinary Health - **Unit count:** 1 count ## Images ![Highest Purity Colloidal Silver 300mL ● 40 PPM ● Free Spray to Fill ● Superior Concentration, Smaller Particles, Better Results ● Certified by 3 Independent Laboratories ● Institut Katharos - Image 1](https://m.media-amazon.com/images/I/71n4x8P2tqS.jpg) ## Questions & Answers **Q: Is this non ionic form of silver?** A: No. Ionic Silver is up to 10,000 times more effective than Colloidal Silver. With or without HCI mixture added, Ionic Silver is capable of eradicating all bacteria in just over four minutes. Silver particles being in the Ionic form are known to speed up the healing processes. **Q: Does it have a long shelf life?** A: It says so in the description. **Q: The description at the top says ‘free spray to fill’ but others have commented no small spray bottle is included, please confirm as I’d Like one inc** A: It's clear in the description. Smaller 100ml, no, as it is a spray. The larger bottle versions, like 300ml , come with spray and measuring cup. **Q: How much do I ad to a pint of water please guys 😍** A: No need to mix it with water. Drink as it is. Use a plastic spoon. No Metal. Have 10ml a day. I think there is a measure on the plastic cap. Have ## Frequently Bought Together - Colloidal Silver Liquid 10 fl oz & Spray to Fill ● Bioactive Hydrosol Silver Water ● Natural Immune Support Nano Sol Supplement Solution ● Ionic Minerals 40 PPM ● Organic Structured Plata Coloidal - Silver Miracles - Colloidal Silver Soap - 3 pack - Silver Miracles - Colloidal Silver Gel - Nano Silver Gel Wound Care - Healing Ointment for Burns & Irritated Skin - for All Skin Types - 4 Oz Unscented --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/48003983-highest-purity-colloidal-silver-300ml-40-ppm-free-spray-to](https://www.desertcart.hr/products/48003983-highest-purity-colloidal-silver-300ml-40-ppm-free-spray-to) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-21*