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Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
Colloidal gold is one of those supplements people either swear by or have never tried — and the gap between those two groups usually depends on picking the right bottle the first time. The concentration, particle size, and purity all change what you actually feel, and a lot of listings make that harder to compare than it needs to be. This guide cuts through the noise so you can match a product to the reason you are looking at colloidal gold in the first place.
I’m Mohammad Maruf — the founder and writer behind Gardening Beyond. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
The goal is to help you find the best colloidal gold for your routine by looking at what really matters: concentration in parts per million, particle size, purity level, and how owners describe the effects in their own daily lives.
Our Picks at a Glance
How To Choose The Best Colloidal Gold
Not all colloidal gold is the same, and the label alone usually does not tell the full story. Three factors separate a bottle that delivers noticeable effects from one that is just fancy-looking water: concentration, particle size, and purity.
Concentration in Parts Per Million (ppm)
The ppm number tells you how much actual gold is suspended in each drop of water. A 20 ppm bottle is a standard maintenance strength, while a 240 ppm or 300 ppm bottle is much more concentrated — you take fewer drops to get the same dose. Higher ppm usually means a stronger noticeable effect, but it also tends to cost more upfront.
Particle Size and Bioavailability
Gold particles need to be small enough for your body to absorb them at a cellular level. True colloids keep particles in the nanometer range, often below 10 nm or even below 3 nm. Smaller particles generally mean higher bioavailability, meaning more of the gold you swallow actually gets used rather than passed through.
Purity and Additives
The best colloidal gold contains only two ingredients: 99.99% pure gold and distilled water. Any bottle that lists preservatives, salts, proteins, or fillers is not a true colloid. Look for phrases like “non-ionic,” “no additives,” and “made with distilled water” on the label to know you are getting the real thing.
Quick Comparison
| Model | Best For | Concentration (ppm) | Volume | Purity | Amazon |
|---|---|---|---|---|---|
| MediGOLD★ Best Overall | Overall pick, trusted brand | 20 ppm | 250 mL | 99.99+% | Amazon |
| NutrinocheTop Performer | High concentration value | 30 ppm | 8 oz | 99.99% | Amazon |
| I Am Joy co.Premium Pick | Ruby red color, great reviews | 20 ppm | 4 oz | 99.99% | Amazon |
| MesoGold (250 mL) | Small particle size | 20 ppm | 250 mL | 99.99% | Amazon |
| Silver MTN Minerals | High ppm concentration | 240 ppm | 16 oz | Medical grade | Amazon |
| Organa (32 oz) | Large economy bottle | 30 ppm | 32 ounce | 99.99% | Amazon |
| MesoGold (500 mL) | Double the volume, same quality | 20 ppm | 500 mL | 99.99% | Amazon |
| EnerGold | Ultra-high concentration | 300 ppm | 7 x 3 x 3 inches | 99.99% | Amazon |
| Sirius Metals | Highest purity and concentration | 200 ppm | 500 mL | 99.99+% | Amazon |
In‑Depth Reviews
1. MediGOLD True Colloidal Gold AuNP Nutritional Supplement – 250 mL
Our pick — over 4★ from 900+ verified ratings; the strongest balance of quality and price.
The decade-and-a-half legacy brand that feels like a known friend to your daily routine.
MediGOLD has been made by a company run by a former NASA biochemist since 2011, and that kind of history shows in the consistency. Each bottle is lab-tested to ensure purity of 99.99+% and a concentration of 20 ppm (parts per million, the measure of gold in the liquid). At 250 mL, you get 8.45 fluid ounces of true colloidal gold nanoparticles suspended in pure water — no taste, no smell, no fillers. What wins people over is the reliability: the brand has been trusted across dozens of countries for well over a decade.
Buyers report that it “induced lucid, controlled, positive dreams from first night; effects persisted after 2-day skip,” and that after roughly a week they experience less mental clutter and easier focus. A common note is that the recommended daily serving is one tablespoon for adults, taken on an empty stomach, which provides 300 micrograms of dietary gold. The bottle is triple-factory sealed, BPA-free, and made in the USA.
The trade-off you should know: a few owners found that one tablespoon per day felt less potent over time, and they needed two tablespoons to restore the same mental-clarity effect. If you are sensitive to dosage or want a stronger impact right away, you might prefer a higher-ppm option. But for sheer trust and a gentle, steady lift in focus and dream recall, this is the crowd favorite.
Why It Earns the Top Spot
- NASA-affiliated biochemist founder oversees production
- Lab-tested 99.99+% purity, 20 ppm concentration
- Proven 15+ year shelf life unopened
The Dosage Note
- Some owners needed two tablespoons per day for full effect
- Clear plastic bottle — store out of direct sunlight
Reach for this if: you want a brand with a fifteen-year track record, a NASA-backed founder, and gentle, steady effects on focus and dream vividness.
Think twice if: you need a very high ppm concentration from the start — this is a 20 ppm bottle, not a concentrated powerhouse.
2. Nutrinoche Colloidal Gold Liquid Organic Supplement – 8 oz, 30 ppm
A 30 ppm crystalline gold supplement that earns its praise for potency.
This Nutrinoche bottle delivers 30 ppm (parts per million) of 99.99% crystalline nano gold particles in pure vapor-distilled water — 50% more concentrated than the 20 ppm picks so far, as the data confirms. The volume is 8 oz, noticeably larger than the 4 oz bottle from I Am Joy co., and the package dimensions are 5.47 x 2.13 x 2.13 inches. Owners highlight that the effect is strong enough that many take it only twice a week. As one put it: “I only need to take it 2 times a week, under the tongue for absorption.”
The thing people rave about is effectiveness — that is the most-mentioned aspect by a wide margin, and the quality comes second. The liquid is tasteless and designed for high bioavailability thanks to its nano-sized particles. Made in Utah, USA, it is vegan and gluten-free with no fillers, additives, salts, or proteins. For anyone who wants a stronger concentration per drop without moving to the heavy-hitter 200+ ppm options, this is the balance.
The consistency does get mixed feedback — some describe it as clear as water while others expect a color. If you associate colloidal gold with a deep ruby red, this clear liquid might initially feel surprising, but the ppm tests confirm it contains the advertised gold.
Where It Shines
- 30 ppm is a noticeable step up from standard 20 ppm
- Only two ingredients: gold and distilled water
- Many owners take just twice a week
The Visual Caveat
- Clear liquid, not ruby red — some owners expect a color
- Mixed feedback on value for the price point
Grab this if: you want a mid-range concentration that outperforms the 20 ppm standard and works on a twice-a-week schedule for some owners.
skip it if: you expect a visual red tint in your colloidal gold — this one looks like water.
3. I Am Joy co. Liquid Colloidal Gold 24k 99.99% Pure 20ppm – 4 oz Glass Bottle
A ruby red 20 ppm in glass that brings vibrant dreams and calm energy.
This is the smallest bottle of the group at 4 oz (about 118 mL), and it comes in a glass bottle with dimensions of just 0.79 x 2.36 x 3.54 inches — 2.8 times smaller than the MediGOLD bottle by those measurements. But what it lacks in size it makes up for in color and quality. The liquid is a deep ruby red, produced by electrolysis with 99.99% pure 24K gold and medical-grade distilled water. The nanoparticle size is less than 3 nm, which supports high bioavailability. At 20 ppm, it is the same concentration as the MediGOLD but in a smaller, more portable package.
What owners come back for is the effect on sleep and dreams — sleep quality is a top aspect (mentioned nearly as often as quality itself), and the feedback is remarkably consistent. Owners mention that “first use restored dream recall after years of no remembered dreams” and that after a week of use, dream vividness increased noticeably. The bottle also delivers a subtle boost of calm energy that lasts several hours, with no taste and only a slight fizz under the tongue. It is made in a cGMP facility in the USA with no salts, fillers, or dyes.
The recurring honest note is the taste — it gets mixed feedback, with some owners detecting a metallic aftertaste. If you are sensitive to the flavor of supplements, you may want to chase it with water or try a different brand. Also, cold weather can affect the product, so pick it up from outside quickly if delivered in winter.
Dream Machine: The ruby red color and tiny nanoparticle size make this the most visually striking bottle, and the dream-recall reports are some of the strongest in the data. The 4 oz size goes faster than the bigger bottles — plan to reorder.
Best for: anyone who wants a premium glass-bottle experience with a beautiful ruby red color and vivid dream effects.
Not ideal if: you dislike any metallic aftertaste or need a larger volume to spread across a month.
4. MesoGold 20 ppm Colloidal Gold – 250 mL
The bioavailable 20 ppm built on the MesoProcess for maximum particle surface area.
MesoGold is different from the other 20 ppm options because it focuses on something called Particle Surface Area (PSA) — and that is directly tied to bioavailability. With an average particle size of less than 3.2 nm and no ionic content, this true colloid is produced using the exclusive MesoProcess, which is designed to boost how much gold your body can actually use. The 250 mL bottle provides 8.45 ounces of 20 ppm gold in a clear suspension.
What owners consistently mention first is the effect on sleep and energy. Customers note that MesoGold “increases sleep efficiency (2:1 ratio, 5 hours feels like 10)” along with vivid dreams and all-day energy. The energy aspect is the most-discussed positive — mentioned well over 40 times — and effectiveness and mood rank high too. The recommended method is to take it on an empty stomach and hold it under the tongue for 30 seconds before swallowing.
The main trade-off this group points to is value for money — it is the most-mentioned negative aspect. Some owners feel the 20 ppm concentration does not justify the price compared to higher ppm options. If you are price-sensitive and want a noticeable boost in concentration per drop, you might prefer a 30 ppm or 240 ppm bottle. But if bioavailability and small particle size are your priorities, this is a strong mid-range contender.
Bioavailability Leader: The sub-3.2 nm particle size and high PSA make this a smart choice if you want to boost absorption. The sleep efficiency reports are some of the most impressive in the category — just be prepared for a higher per-bottle cost.
Reach for this if: you prioritize the smallest particle size and highest bioavailability over raw ppm numbers.
Think twice if: you are trying to stretch your dollar — some owners find the value-for-money ratio lower than higher-ppm brands.
5. Silver MTN Minerals Colloidal Gold (Elixir) 240 ppm – 16 oz
A massive 240 ppm concentration in a 16 oz bottle — the heavyweight of the list.
This is where the ppm numbers get serious. Silver MTN Minerals delivers 240 ppm of colloidal gold in medical-grade liquid suspension, and the bottle is a generous 16 oz — the same volume as the Sirius Metals 500 mL bottle, but at an even higher concentration. The manufacturer has a 15-year history of customer satisfaction, and the product is gluten-free, BPA-free, and contains no preservatives, additives, fillers, salts, or proteins. It is safe for children and pets according to the maker.
What owners come back for again and again is the mental clarity and focus. The quality is the top mentioned positive aspect, and effectiveness comes second. Reviewers point out this brand is “one of the best on Amazon” and that they buy it the most over other brands. The deep pink color is a visual clue to the potency, and shoppers say that it provides focus, inner peace, intuition, and mood balance. It is fast-acting and microbiome-friendly, with a 100% satisfaction guarantee.
The honest observation from the data: the concentration is so high that some owners find it almost too strong — they mention needing to dial in their dose carefully. Also, the manufacturer warns that cold temperatures can affect the product, so pay attention to delivery conditions in winter. But for sheer value-per-ppm, this bottle punches far above its price tier.
The Potency Advantage
- 240 ppm — twelve times the concentration of a standard 20 ppm
- 16 oz bottle lasts significantly longer than smaller bottles
- 15-year satisfaction history
The Dose Precision Needed
- Very high concentration requires careful measuring
- Cold sensitive — plan delivery accordingly
Grab this if: you want the highest concentration per bottle on this list and prefer to take fewer drops for a stronger effect.
pass on it if: you are new to colloidal gold and want to start with a standard 20 ppm before jumping to a concentrated formula.
6. Organa Pure Crystalline Liquid Gold Supplement 30 ppm – 32 Ounce
The economy-sized 30 ppm bottle that keeps the per-dose cost low.
At 32 ounces, this Organa bottle is one of the largest volumes in the group — roughly four times the size of a standard 8 oz bottle — and it still delivers 30 ppm of 99.99% crystalline nano gold particles. The liquid contains only two ingredients: gold particles and pure vapor-distilled water, with no fillers, additives, salts, or proteins. The manufacturer uses a proprietary process to create the nano particles, and it is made in the USA.
What owners appreciate most is the value — getting this much liquid at 30 ppm stretches the cost per dose significantly lower than the smaller bottles. Buyers describe it as tasteless and water-like, with a calming effect on the brain. Some buyers report physical improvements like reduced finger curvature from arthritis after taking one tablespoon per day. The general consensus is that it works well for the price, especially if you plan to take it daily over many months.
The note of caution from the data: some owners question the color, expecting a reddish tint and finding the liquid completely clear like water. One owner measured the ppm and found between 25-28 ppm, which is close to the advertised 30 ppm but worth knowing if you are very precise about concentration. Also, at this size, make sure you have the storage space in your pantry or cabinet.
Bulk Buyer’s Friend: The 32 oz volume at 30 ppm is the best value-for-volume ratio on the list. If you are certain colloidal gold works for you and want the lowest cost per serving, this is your bottle. Just do not expect a ruby red color — it looks like water.
Best for: long-term daily users who want a 30 ppm concentration and the lowest cost per dose.
Not for: anyone who judges quality by the liquid’s color — this one is clear, not red.
7. MesoGold 20 ppm Colloidal Gold – 500 mL
Twice the volume of the standard MesoGold at the same trusted 20 ppm quality.
If you already like the MesoGold 250 mL bottle above, this is the same formula in a 500 mL (16.9 oz) bottle — double the volume at a proportionally better value. It still uses the exclusive MesoProcess for the highest Particle Surface Area (PSA) and has an average particle size of 3.2 nm with no ionic content. The 20 ppm concentration is ideal for those who want the benefits of colloidal gold without the intensity of higher ppm options.
Owners consistently highlight the quality and health benefits — these are the two most-mentioned aspects by far. Owners mention that it resolved depression and chronic fatigue, boosted energy and happiness, and improved mental clarity. One owner notes that their “nails and hair have been positively impacted by taking this daily.” The product is said to support mental focus, concentration, hand/eye coordination, memory, and a general feeling of well-being.
The main point to consider: the value-for-money feedback is mixed. While the 500 mL bottle offers more volume, the cost is still a factor for some buyers. If you are sensitive to price and want the most bang for your buck in terms of ppm per dollar, a 240 ppm bottle like the Silver MTN Minerals will give you more gold per drop. But if you trust the MesoProcess and want a consistent, bioavailable 20 ppm for daily use, this is the logical upgrade to the smaller bottle.
Upgrade Pick: Same great MesoGold quality, double the volume. If you already use the 250 mL and want to stock up, this is the obvious next step. The particle size and PSA stay the same — you just get more of it.
Reach for this if: you already trust the MesoGold brand and want a larger bottle that lasts twice as long between orders.
Think twice if: you are comparing cost per ppm — a higher concentration bottle will give you more gold per dollar.
8. EnerGold 99.99%-Pure Ultraconcentrated 300 ppm Ruby-Red Colloidal Gold
A 300 ppm ultraconcentrated ruby red that claims to be in a league of its own.
EnerGold is not playing the same game as the 20 ppm bottles. At 300 ppm, this is the highest concentration on the list — 15 times stronger than a standard 20 ppm. The product uses 99.99%-pure gold, distilled water, and trace amounts of the manufacturer’s own monoatomic gold (ORMUS) to stabilize the suspension. The result is a deep ruby-red liquid that the company says is made in three distinct particle-size batches (under 2 nm, 2-12 nm, and 13-24+ nm) that are then combined into a single formulation. The product dimensions are 7 x 3 x 3 inches and it weighs 1.2 pounds.
The honest note from the data: at this extreme concentration (300 ppm), some reviewers point out that the colloid can collapse over time — one noted it cleared and would not re-suspend after 3 months. If you buy this, use it consistently rather than storing it for long periods. Also, at this potency, dose carefully — a few drops go much further than you expect.
Concentration King: 300 ppm is not for beginners. This is for experienced users who want maximum potency in minimal drops. The topical application reports add an extra dimension that most other brands do not cover.
Best for: advanced users who know exactly what they want from a high-ppm colloid and are willing to pay for maximum concentration.
Not for: first-time colloidal gold buyers or anyone who wants a simple, low-maintenance 20 ppm daily routine.
9. Sirius Metals True Colloidal Gold 200 ppm – 500 mL
A 200 ppm behemoth in a 500 mL bottle, held in high regard by a smaller circle of owners.
Sirius Metals delivers 200 ppm (parts per million) of true colloidal gold in a 500 mL (16.9 fl oz) bottle with 99.99+% purity. The gold exists as nanoparticles colloidally suspended in pure water, with no flavoring or additives. The bottle is BPA-free and double-sealed, and you can visibly see the gold float to the top of the water if heat is applied, according to owners. This is a concentrated formula intended for those who want a high dose in a small volume.
What owners say: this is “the highest quality colloidal gold I have found on the market.” They report a subtle energy and mood boost, and note that at higher doses it can make you feel “a bit edgey and irritable” — so start low and adjust. A particularly interesting use case mentioned by multiple owners is adding it to face creams. One buyer shares that they have used the Edgar Cayce wrinkle remedy with this brand for decades and have few wrinkles, mixing it into inexpensive face creams and also applying to hands to reduce aging signs.
The manufacturer warns that the product is ruined if allowed to freeze, so never have it delivered to an outside mailbox or porch in freezing conditions. At 200 ppm and 500 mL, this bottle is both highly concentrated and generous in volume — a premium combination that owners describe as legitimate and high quality.
Concentrated and Versatile: The 200 ppm concentration in a large 500 mL bottle is a rare combination. Owners love it for both internal use and as a skincare additive. Just handle with care — freezing destroys the colloid.
Reach for this if: you want a high-concentration, large-volume bottle for both ingesting and mixing into creams.
Think twice if: you live in a freezing climate without a secure delivery location — this product cannot survive being frozen.
Understanding the Specs
Parts Per Million (ppm)
This is the concentration of gold in the liquid. A 20 ppm bottle has 20 parts of gold per million parts of water. Higher numbers like 240 ppm or 300 ppm mean you take fewer drops to get the same amount of gold, which often leads to a stronger and more noticeable effect. Beginners usually start with 20 ppm, while experienced users often prefer 200-300 ppm for efficiency.
Particle Size and Bioavailability
Gold particles measured in nanometers (nm) determine how well your body absorbs them. Particles smaller than 10 nm generally have higher bioavailability, meaning a greater percentage of the gold you take is actually absorbed at the cellular level. The smallest particles on this list average less than 3 nm. Particle Surface Area (PSA) is another way manufacturers express how much gold surface is available for absorption — higher PSA usually means better bioavailability.
Purity and Ingredient Count
The best colloidal gold lists exactly two ingredients: 99.99% pure gold and distilled water. Any product with preservatives, salts, proteins, stabilizers, or other additives is not a true colloid. A purity claim of “99.99%” means there are virtually no trace metals or contaminants. Some premium products add a trace of monoatomic gold (ORMUS) for stability, but the base should always be pure gold and water.
Ionic vs True Colloidal
Ionic gold means the gold atoms carry an electrical charge and are dissolved in the water rather than suspended as particles. True colloidal gold keeps particles physically suspended in the water, which is generally considered more bioavailable and safer because the particles are large enough to be excreted rather than building up in tissues. Look for products that specify “non-ionic” or “true colloidal” on the label.
FAQ
What does ppm mean in colloidal gold?
How do I take colloidal gold for the best absorption?
Can colloidal gold freeze and be ruined?
How long does colloidal gold last once opened?
What is the difference between ionic and true colloidal gold?
Can I use colloidal gold on my skin?
How does 20 ppm compare to 240 ppm in daily use?
What should I look for in a high-quality colloidal gold?
Does colloidal gold have a taste or color?
How long before I notice effects from colloidal gold?
Final Thoughts: The Verdict
If you want one dependable pick, the best colloidal gold to start with is the MediGOLD True Colloidal Gold 20 ppm because it combines a trusted brand with a NASA-affiliated founder, proven 15+ year shelf life, and gentle, consistent effects on focus and dream quality. If you want a stronger concentration per drop and the best value in terms of potency, the Silver MTN Minerals 240 ppm delivers the most gold per bottle at a concentration twelve times higher than standard. And for those who want the deepest ruby red color and vivid dream effects in a premium glass bottle, the I Am Joy co. 20 ppm is the one to reach for.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of July 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, Gardening Beyond earns from qualifying purchases. This does not affect which products we feature.