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20 Best Colloidal Silver Ppm of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best Colloidal Silver Ppm of 2023. Check our ranking below.

2,259 Reviews Scanned

SaleRank No. #1
Natural Path Silver Wings Dietary Mineral Supplement, Colloidal Silver, 500 PPM, 4 fl. oz. / 120 ml
  • DEVELOPED BY DOCTOR Mark Smith, ND, PhD, MD(MA) & Liz Smith, RN
  • STRONG SILVER IMMUNE SUPPORT: 50x stronger (more SILVER) than other brands with only 10ppm.
  • BETTER VALUE: Higher strength = fewer doses needed to consume = more economical.
  • SAFE & SUPERIOR ABSORPTION: Unparalleled small silver particle size (1-3 nanometers). Made from naturally occurring silver with a true amber color which is gluten free and NON-GMO earning the esteemed Parents’ Picks award for "Best Family Health & Safety Product" and the Mom’s Choice Award for "Best in Family-Friendly Products."
  • HIGH QUALITY / ULTRA PURITY: Pharmaceutical grade deionized pure water with ultra-fine pharmaceutical grade colloidal silver particles in amber glass bottles for optimal quality, integrity and protection earning 2x Best of Supplements awards, 2x Natural Choice award for "Best Immune Products" and Vity Award winner.
Rank No. #2
Blue Ridge Silver - 10 ppm 16 oz Colloidal Silver Natural Immune Support Health Supplement
  • This 10 ppm Colloidal Silver is GUARANTEED to IMPROVE YOUR OVERALL HEALTH. All Blue Ridge Silver products are crafted with care in SMALL BATCHES to maximize SAFETY, BIOAVAILABILITY, AND EFFECTIVESS. All Batches are tested to ensure quality and purity.
  • Often called Liquid Silver or Silver Water, Colloidal Silver has been USED FOR CENTURIES to PROMOTE GOOD HEALTH. Our colloidal silver 10 ppm is made up of ONLY TWO INGREDIENTS: 99.99% PURE SILVER and MEDICAL GRADE DISTILLED WATER. There are NO Salts, Proteins, Preservatives, or other Additives. BLUE RIDGE SILVER is a FAMILY-OWNED and OPERATED American Business based in the Blue Ridge Mountains of North Carolina.
  • Unsurpassed QUALITY and PURTIY and AMAZINGLY EFFECTIVE! At Blue Ridge Silver, our MISSION IS TO PRODUCE AND DELIVER THE BEST QUALITY, PURE, AND EFFECTIVE ALL NATURAL COLLOIDAL SILVER mineral supplements. Our 10 ppm Colloidal Silver is CRYSTAL CLEAR with particle sizes as tiny as 0.8 nanometer which are visible only with laser light (as seen in the photos).
  • PERFECT FOR DAILY MAINTENANCE as well as when you need an EXTRA IMMUNE SYSTEM SUPPORT. Packaged in Blue PETE (BPA-Free) Plastic Bottles to Retain Purity and Effectiveness. Tests show that PETE is as good or better than glass for storage of colloidal silver, and plastic bottles are much easier to recycle with a lower carbon footprint.
  • BLUE RIDGE SILVER NO-RISK GUARANTEE: If you are not completely satisfied with any of our colloidal silver products for any reason, please contact us and we will MAKE THINGS RIGHT.
Rank No. #3
Natural Path Silver Wings Colloidal Silver 250ppm (1250mcg) Enhanced Immune Support Supplement - 4 Fl. Oz.
  • DEVELOPED BY DOCTOR Mark Smith, ND, PhD, MD(MA) & Liz Smith, RN
  • STRONG SILVER IMMUNE SUPPORT: 25x stronger (more SILVER) than other brands with only 10ppm.
  • BETTER VALUE: Higher strength = fewer doses needed to consume = more economical.
  • SAFE & SUPERIOR ABSORPTION: Unparalleled small silver particle size (1-3 nanometers). Made from naturally occurring silver with a true amber color which is gluten free and NON-GMO earning the esteemed Parents’ Picks award for "Best Family Health & Safety Product" and the Mom’s Choice Award for "Best in Family-Friendly Products."
  • HIGH QUALITY / ULTRA PURITY: Pharmaceutical grade deionized pure water with ultra-fine pharmaceutical grade colloidal silver particles in amber glass bottles for optimal quality, integrity and protection earning 2x Best of Supplements awards, 2x Natural Choice award for "Best Immune Products" and Vity Award winner.
Rank No. #4
Natural Path Silver Wings Colloidal Silver 500PPM, Amber Brown Liquid Immune Support, 1 Fl Oz (Pack of 1)
  • STRONG IMMUNE SUPPORT: Natural Path Silver Wings Colloidal Silver 500PPM is our best seller. 50 times stronger (more silver particles) per serving than 10PPM silver solutions. Higher PPM strength offers convenience of less dosages per day. Properly prepared pharmaceutical grade colloidal silver is safe to use in higher PPM strengths and concentrations.
  • SMALL SILVER PARTICLES ARE MORE BIOAVAILABLE. Natural Path / Silver Wings Colloidal Silver average silver particles range from 0.6nm – 3nm. It is easily absorbed and readily available for your body’s immune support needs. Silver Wings Colloidal Silver is safe, more bioavailable and effective for immune support than competing brands.
  • WHAT IS PARTS PER MILLION (PPM)? PPM (STRENGTH) is the number of silver particles per serving yields greater concentration and increased immune support. Silver Wings offers products in 50,150,250, and 500PPM.
  • IS COLLOIDAL SILVER SAFE? Yes. Due to the unparalleled silver particle size, Silver Wings Colloidal Silver is safe for the whole family. Properly prepared pharmaceutical grade colloidal silver is safe to use in higher PPM strengths and concentrations. Natural Path / Silver Wings is the oldest (since 1994) colloidal silver manufacturer in the United States.
  • AMBER COLOR IS KEY: Silver Wings is made from naturally occurring elemental Silver, which has a color. It is not ionic or electrically processed. The higher PPM, the darker the amber color colloidal silver suspension (liquid) will appear.
SaleRank No. #5
Sovereign Silver Bio-Active Silver Hydrosol for Immune Support - Colloidal Silver Liquid - 10 ppm, 4oz (118mL) - Dropper
  • Trusted by millions, Sovereign Silver is the premium selling silver supplement in the U.S.
  • With unprecedented particle size as small as 0.8nm, our colloidal silver is safe* & easier for the body to absorb.
  • We use amber colored, glass bottles which are crucial to ensure the stability & quality of hydrosol.
  • Sovereign Silver has 2 ingredients: 99.999% pure silver & pharmaceutical-grade purified water.
  • Silver is a natural element that can be found in whole grains, mushrooms, mammalian milk, and water.
Rank No. #6
Colloidal Silver Liquid 20 PPM - 4 Fl OZ (Plata Coloidal with Dropper) 99.9% Pure, Manufactured in The USA, Gluten Free, Non-GMO by Double Wood Supplements
  • 99 9% Pure Colloidal Silver and Distilled Water; Double Wood only uses pure Colloidal Silver and Distilled Water, no other ingredients
  • Dropper for Convenient Use; Each bottle contains a 1ml dropped for convenient usage and dosing
  • Safe Dose and Glass Bottle; The EPA has established a safe daily oral dose for colloidal silver of 350mcg, far above our daily recommended dose of 20mcg
  • 4 Month Supply; Each bottle contains 120 servings of 20 PPM Colloidal Silver Liquid Drops
  • Manufactured in the USA, Gluten Free, Non Gmo; DoubleWood Supplement's Colloidal Silver Drops are Manufactured in the USA, Gluten Free and Non Gmo
Rank No. #7
Lab Tested Certified 120ppm Concentrated Pure Colloidal Silver by GOE (1 Quart) with Free Dropper Bottle. Lab Report documented.
  • 120 ppm Pure Colloidal Silver. Top Rated Lab tested - see pictures. Question why if a seller can not prove contents.
  • 100% Pure & Natural 12x stronger than 10ppm colloidal silver & stabilized to not interfere with other supplements
  • The FDA Registered, DEA licensed, SO 17025 Accredited and cGMP/GMP Compliant Laboratory Analysis confirmed that it is clear (pure colloidal silver has NO color tint) 130 ppm colloidal silver content. This is not homemade nor the extremely watered down & over priced 10ppm that is mass marketed. This is the finest, purest and most potent colloidal silver you can buy - at a fraction of retail price. Hurry - we do run out of this item.
  • Manufactured exclusively by Guardian Of Eden since 1983 - NOT homemade. This is REAL nano colloidal silver
  • Legit major company you can trust. Will never expire - store it for decades with no loss in strength
Rank No. #8
Bioactive Colloidal Silver - 8 oz, Glass Bottle, Vegan, Safe Doses with Highest Effectiveness - Nano Ions, 30 PPM - Immune Support (48 Servings)
  • BIOACTIVE SILVER FOR POTENT IMMUNE SUPPORT*: Our colloidal silver is 99.99% pure silver ions in Bioactive form. This means 99% of the Silver particles and nano-clusters maintain their active ionic-charge, which is the only truly effective form of colloidal silver. Without this natural charge, it cannot be truly effective.
  • NANO-PARTICLES = HIGHEST BIOAVAILABILITY & EFFECTIVENESS: The unparalleled, nano-sized silver particles allow for perfect absorption and effectiveness at the cellular level. Once utilized by the body, the nano-particles are easily excreted due to their size.
  • 30 PPM CONCENTRATION = LESS DOSES & 100% SAFE: Take less daily doses with 30 PPM concentration. Unlike 10 PPM concentrations, which require 5-7 servings per day. Our 30 PPM concentration allows for 100% safe and effective doses only 2 times a day. Based on the EPA’s reference dose, you could safely take our silver 2 times daily for 70 years.
  • GLASS BOTTLE & ENHANCED ABSORPTION: Our glass bottles are crucial to the stability and quality of our Bioactive Silver. Plastic bottles may leach impurities into the colloidal silver. We also enhance the Colloidal Silver absorption with Fulvic Acid trace mineral complex – Fulvic Acid is naturally occurring and found in soil. It has been clinically shown to improve the absorption and effectiveness of colloidal silver.
  • USA MADE, 3rd PARTY TESTED, VEGAN: Produced in the USA in a cGMP certified facility following the most rigorous manufacturing and quality control standards. Each batch is 3rd party tested by independent labs for contaminants, concentration, and efficacy. It is vegan, GMO-Free, allergen and gluten free.
Rank No. #9
TheaWell Colloidal Silver - 1500 PPM, 4oz Dropper, Immune Defense, Super-Strength Concentration, High-Grade Mild Silver Protein
  • BOOST YOUR IMMUNE SYSTEM – TheaWell Immune Defense is formulated with high-grade Mild Silver Protein and ultra-fine silver particles to help strengthen your body's defenses against harmful agents.
  • SUPER-STRENGTH CONCENTRATION - At 1500 PPM our Colloidal Silver is up to 150x more potent than other brands.
  • STIMULATES HEALING - Effectively targets bacteria, fungus and yeast and is great for skin and soft tissue.
  • BETTER VALUE – Our super-strength concentration means smaller dose sizes, better value and more savings.
  • MADE IN USA - FDA registered facility. Vegan and Non-GMO
Rank No. #10
Trinity NutraLab 130PPM Colloidal Silver (1 Gallon). Certified Lab Tested, 100% Pure & Natural. Nothing Added.
  • 130 ppm (minimum) Pure Colloidal Silver. Top Rated Lab tested - see pictures. Question why if a seller can not prove contents.
  • 100% Pure & Natural 13x stronger than 10 ppm colloidal silver & stabilized to not interfere with other supplements
  • Documented by FDA registered, DEA licensed, GMP Compliant Laboratory Analysis in listing pics at 130 ppm.
  • From Trinity NutraLab. This is not a homemade product. This is REAL 100% Pure and natural nano colloidal silver
  • Legit major company you can trust. Will never expire - no shelf life limit. May be stored it for decades with no lose in strength
Rank No. #11
Ultra Silver® Colloidal Silver | 1,000 PPM, 8 Oz (236mL) | Mineral Supplement | True Colloidal Silver - with Dropper
  • True Colloidal Silver - Ultra Silver is nano sized and stays in suspension indefinitely. The process is scientific, complicated and precise. It requires laboratory grade techniques and industrial level equipment to produce. Ultra Silver will not degrade or settle out over time. It is non reactive which makes it ideal for storage and use anywhere.
  • Lab Certified PPM - We independently test and guarantee our parts per million (PPM) concentration level. We openly share the results which you may find in the product pictures. A TDS meter WILL NOT measure PPM, only total dissolved solids.
  • Not Ionic - Ionic silver is not colloidal silver. Many products are marketed as colloidal silver, but are actually ionic silver. These will be clear, have a PPM of less than 30 and are produced simply by electrolysis (you may do this at home).
  • True Color - As the concentration increases, a true colloidal silver transitions from a golden amber to a dark brown. This is the natural coloration of a concentrated, nano sized, true colloidal silver product.
  • Economical - Ultra Silver has concentration levels far beyond other brands. Our price structure gives us value not found anywhere else! Ultra Silver is typically 15 to 50 times more concentrated than competing products.
Rank No. #12
NutriNoche Colloidal Silver Gel - 100 PPM - Colloidal Silver Gel (4oz) - Soothing and Cooling of Sunburns, Razor Burn and Skin Burns
  • ✅ THE BEST COLLOIDAL SILVER GEL. Excellent wound care gel. Use for skin irritations such as dry skin, cuts, burns, insect bites and much more. Excellent to use on minor cuts, burns and scrapes. Excellent for relief of razor burn and sunburn relief also.
  • ✅ HIGH CONCENTRATION: 100 PPM for a concentrated dose of THE BEST Nano Sized Colloidal Silver gel . Our silver gel can be utilized by the body more readily because of the purity and size of particle.
  • ✅ SAFE FOR HUMANS AND ANIMALS: Use colloidal silver gel for your pets. Safe to use on cats, dogs and all animals.
  • ✅ NANO SIZED SILVER PARTICLES: easily absorbs into your skin, oil free and dries completely.
  • ✅ NO ADDED SCENTS OR COLORS: Unscented and uncolored and made in the USA in a cGMP manufacturing facility.
Rank No. #13
Ultra Silver Colloidal Silver 500 PPM - 4 Oz
  • True Colloidal Silver - Ultra Silver is nano sized and stays in suspension indefinitely. The process is scientific, complicated and precise. It requires laboratory grade techniques and industrial level equipment to produce. Ultra Silver will not degrade or settle out over time. It is non reactive which makes it ideal for storage and use anywhere.
  • Lab Certified PPM - We independently test and guarantee our parts per million (PPM) concentration level. We openly share the results which you may find in the product pictures. A TDS meter WILL NOT measure PPM, only total dissolved solids.
  • Not Ionic - Ionic silver is not colloidal silver. Many products are marketed as colloidal silver, but are actually ionic silver. These will be clear, have a PPM of less than 30 and are produced simply by electrolysis (you may do this at home).
  • True Color - As the concentration increases, a true colloidal silver transitions from a golden amber to a dark brown. This is the natural coloration of a concentrated, nano sized, true colloidal silver product.
  • Economical - Ultra Silver has concentration levels far beyond other brands. Our price structure gives us value not found anywhere else! Ultra Silver is typically 15 to 50 times more concentrated than competing products.
SaleRank No. #14
Sovereign Silver Bio-Active Silver Hydrosol for Immune Support - Colloidal Silver - 10 ppm, 8oz (236mL) - Dropper
  • Trusted by millions, Sovereign Silver is the premium selling silver supplement in the U.S.
  • With unprecedented particle size, our colloidal silver is safe & easier for the body to absorb.
  • We use amber colored, glass bottled which are crucial to ensure the stability & quality of hydrosol.
  • Sovereign Silver has 2 ingredients: 99.999% pure silver & pharmaceutical-grade purified water.
  • Silver is a natural element that can be found in whole grains, mushrooms, mammalian milk, and water.
Rank No. #15
Colloidal Silver Liquid Solution - 16 oz in Glass Bottle by Silver Holistics For Immune Support
  • Glass bottle protects your silver from harmful plastic contaminants and UV rays; our highest concern is the integrity of your silver.
  • Our production process produces a 10 ppm solution, 1nm in size, allowing for easy absorption and assimilation; resulting in an efficient and effective solution.
  • Safe and effective for ages 4 and up; even good enough for your pets.
  • Pure distilled water and 99.999 percent silver are the only ingredients; no added salts, stabilizers, preservatives or anything else; providing one of the purest solutions available.
  • Proudly made in the USA
Rank No. #16
Silver Mountain Minerals Colloidal Copper Liquid Mineral Supplement 16 Oz. 100 PPM
  • 15 year history with thousands of customer satisfaction reviews of the the finest quality, most Bio-Active Copper Colloid supplement available. * LARGE 16 Oz. Bottle @ 100 ppm Concentration in a 100% Pure Medical Grade Colloidal Supplement in Liquid Suspension
  • Gluten free, BPA free with No preservatives, additives, fillers, salts or proteins. * Safe for Children and Pets with Purity You Can See, Taste and Feel. * pH optimized, NANOMETER size particle cloud for maximum absorption, in a non agglomerating suspension for long stable shelf life.
  • Formulated for both internal and topical applications to enhance skin elasticity, collagen rejuvenation and anti-oxidant properties for reduction of fine lines and wrinkles.
  • 100 % SATISFACTION GUARANTEE
Rank No. #17
Natural Path Silver Wings Colloidal Silver 500ppm (2,500mcg) Immune Support Supplement 16 fl. oz. 500 ppm
  • DEVELOPED BY DOCTOR Mark Smith, ND, PhD, MD(MA) & Liz Smith, RN
  • STRONG SILVER IMMUNE SUPPORT: 50x stronger (more SILVER) than other brands with only 10ppm. This colloidal silver is 500 ppm in a 16oz glass bottle.
  • BETTER VALUE: Higher strength = fewer doses needed to consume = more economical.
  • SAFE & SUPERIOR ABSORPTION: Unparalleled small silver particle size (1-3 nanometers). Made from naturally occurring silver with a true amber color which is gluten free and NON-GMO earning the esteemed Parents’ Picks award for "Best Family Health & Safety Product" and the Mom’s Choice Award for "Best in Family-Friendly Products."
  • HIGH QUALITY / ULTRA PURITY: Pharmaceutical grade deionized pure water with ultra-fine pharmaceutical grade colloidal silver particles in amber glass bottles for optimal quality, integrity and protection earning 2x Best of Supplements awards, 2x Natural Choice award for "Best Immune Products" and Vity Award winner.
Rank No. #18
Sovereign Silver Bio-Active Silver Hydrosol- Colloidal Silver Liquid - 2oz - Dropper
  • Trusted by millions, Sovereign Silver is the premium selling silver supplement in the U.S.
  • With unprecedented particle size as small as 0.8nm, our colloidal silver is safe* & easier for the body to absorb.
  • We use amber colored, glass bottled which are crucial to ensure the stability & quality of hydrosol.
  • Sovereign Silver has 2 ingredients: 99.999% pure silver & pharmaceutical-grade purified water.
  • Silver is a natural element that can be found in whole grains, mushrooms, mammalian milk, and water.
Rank No. #19
Natural Path Silver Wings Colloidal Silver 250ppm (1250mcg) Spray Top 2 Fl Oz. - Enhanced Immune Support Supplement
  • DEVELOPED BY DOCTOR Mark Smith, ND, PhD, MD(MA) & Liz Smith, RN
  • STRONG SILVER IMMUNE SUPPORT: 25x stronger (more SILVER) than other brands with only 10ppm.
  • BETTER VALUE: Higher strength = fewer doses needed to consume = more economical.
  • SAFE & SUPERIOR ABSORPTION: Unparalleled small silver particle size (1-3 nanometers). Made from naturally occurring silver with a true amber color which is gluten free and NON-GMO earning the esteemed Parents’ Picks award for "Best Family Health & Safety Product" and the Mom’s Choice Award for "Best in Family-Friendly Products."
  • HIGH QUALITY / ULTRA PURITY: Pharmaceutical grade deionized pure water with ultra-fine pharmaceutical grade colloidal silver particles in amber glass bottles for optimal quality, integrity and protection earning 2x Best of Supplements awards, 2x Natural Choice award for "Best Immune Products" and Vity Award winner.
Rank No. #20
Colloidal Silver | 10 PPM | 16 fl. Oz (473 mL) | with Nano Silver Technology | Vegetarian, Non-GMO, Gluten Free Supplement | Silver Solutions by Carlyle
  • SILVERSOLUTIONS: Colloidal Silver features 10 PPM of Silver, 50 mcg per serving in convenient liquid form
  • NANO SILVER TECHNOLOGY: Designed for enhanced performance, and suitable for a vegetarian lifestyle
  • ROOTED IN WELLNESS: Carlyle provides premium, honest supplements in your pursuit to healthy living
  • CARLYLE MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
  • FREE OF: Gluten, Wheat, Yeast, Milk, Lactose, Soy, Artificial Color, Flavor, Preservatives & Non-GMO

Last update on 2023-08-07 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best Colloidal Silver Ppm?

Do you get stressed out thinking about shopping for a great Colloidal Silver Ppm? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Colloidal Silver Ppm, which is why we have assembled a comprehensive list of the greatest Colloidal Silver Ppm available in the current market. We’ve also come up with a list of questions that you probably have yourself.

Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Colloidal Silver Ppm that you consider buying. Your questions might include the following:

  • Is it worth buying an Colloidal Silver Ppm?
  • What benefits are there with buying an Colloidal Silver Ppm?
  • What factors deserve consideration when shopping for an effective Colloidal Silver Ppm?
  • Why is it crucial to invest in any Colloidal Silver Ppm, much less the best one?
  • Which Colloidal Silver Ppm are good in the current market?
  • Where can you find information like this about Colloidal Silver Ppm?

We’re convinced that you likely have far more questions than just these regarding Colloidal Silver Ppm, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Colloidal Silver Ppm, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Colloidal Silver Ppm. Make sure that you are only using trustworthy and credible websites and sources.

Romance University provides an Colloidal Silver Ppm buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Colloidal Silver Ppm currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Colloidal Silver Ppm has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Colloidal Silver Ppm?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Colloidal Silver Ppm.
  5. Customer Ratings: Number ratings grade Colloidal Silver Ppm objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Colloidal Silver Ppm.
  7. Product Quality: You don’t always get what you pay for with an Colloidal Silver Ppm, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Colloidal Silver Ppm is should be an indication of how long it will work out for you.

Romance University always remembers that maintaining Colloidal Silver Ppm information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Colloidal Silver Ppm is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

FAQ:

Q: Which kind of colloidal silver is best?

A: Larger than 80 nm nanoparticles at large concentrations will look mostly green. So a light yellow to yellow colloidal silver with a concentration between 15 and 30 ppm would be the best kind of colloidal silver we should get.

Q: What’s the harm in colloidal silver?

A: Rarely, excessive doses of colloidal silver can cause possibly irreversible serious health problems, including kidney damage and neurological problems such as seizures. Colloidal silver products may also interact with medications, including penicillamine (Cuprimine, Depen),…

Q: What is silver ppm?

A: By definition 1 PPM is 1 milligram of silver deposited in 1 liter of water (1,000 ml) (1,000,000 mg).

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