Not All Carbon 60
Is Created Equal.
Greska's Proves It.
Most C60 oils start with a carbon rod, a toxic solvent, and a purple tint that won't wash out. Greska's took a different road entirely. Here's the head-to-head the supplement aisle didn't want you to see.
Greska's at a glance
If purity is the game, Greska's set the rules.
★ Bottom line
The entire C60 supplement category traces back to two carbon rods, an electric arc, and a bath of toxic solvent. Greska's Carbon 60 threw that playbook out. It is, by its own documentation and independent assays, the only major C60 made with no solvents and no carbon-rod contaminants, producing pure black 20-nanometer spheres instead of the clustered, purple-tinted, solvent-kissed C60 sold by nearly everyone else.
Competitors like C60 Purple Power and MyVitalC (ESS60) make genuinely respectable products — and we'll give them full credit below. But on the metrics that actually define C60 quality — solvent exposure, contaminant load, particle size, and the engineering pedigree behind the process — Greska's is the one everyone else gets measured against.
A Nobel-winning molecule, a rat that wouldn't die
Before you can judge a C60 brand, you have to understand why anyone takes C60 at all — and why purity is the entire ballgame.
Carbon 60 — "Buckminsterfullerene," nicknamed the buckyball — is a soccer-ball-shaped cage of 60 carbon atoms. It was discovered at Rice University in 1985 and earned its discoverers the 1996 Nobel Prize in Chemistry. It occurs naturally in soot, lightning strikes, and even deep space.
Interest exploded in 2012, when a study by Baati and colleagues in the journal Biomaterials reported that rats given C60 dissolved in olive oil lived dramatically longer than controls — the authors attributed the effect to C60 attenuating age-related oxidative stress. That single paper launched an entire industry.
The buckyball is born
Kroto, Curl & Smalley discover C60 at Rice University.
Nobel Prize in Chemistry
The discovery of fullerenes is honored with science's highest prize.
The lifespan study
Baati et al. report C60-in-olive-oil nearly doubled the lifespan of treated rats (Biomaterials), igniting the supplement market.
Greska changes the recipe
After a career engineering carbon for spacecraft, Bob Greska perfects a solvent-free method to make non-clustered, contaminant-free C60.
The category splits in two
Solvent-extraction C60 producers (sublimation included) on one side; Greska's solvent-free black spheres on the other — the benchmark every other C60 compares itself to.
Note: The 2012 rat study is foundational to the category but is a small animal study; robust human longevity evidence is still emerging. C60 supplements are sold for general wellness, not to treat disease (see disclaimer).
It all comes down to how the C60 is made
Three production philosophies dominate the market. Two of them involve solvents. Only one doesn't.
Arc + Solvent Extraction
Carbon rods are vaporized in an electric arc, and the resulting soot is washed with aromatic solvents like toluene, benzene, or hexane to pull out the C60. Fast and cheap — but solvent residue becomes chemically bonded and physically trapped in the C60 and, per published crystallography, cannot be fully removed, even by vacuum heating.
Sublimation
Don't let the name fool you — sublimation is a purification step, not a clean origin. The fullerene material fed into it is typically produced and extracted with solvents first; sublimation just vaporizes the C60 back out of that solvent-touched mix. And that headline "99.99% pure" figure is misleading — it just means a 99.99% ratio of C60 to higher fullerenes like C70, not freedom from solvent. To hit that ratio, manufacturers commonly still use toluene to separate the C60 from the C70. So the C60 has still met solvents along the way — and comes out clustered and crystallized, not the pristine, never-solvented sphere Greska's delivers. Cleaner than raw extraction, but the molecule's already compromised.
Proprietary Non-Solvent Conversion
Greska's makes its own Carbon 60 powder and converts it with an exclusive process that uses no carbon rods and no solvents at any stage. The output: non-clustered, non-crystalline 20-nanometer spheres of food-grade C60. No solvent to trap. No rod metals to leach. Nothing to remove.
Contaminant exposure by production method
Greska's non-solvent process has no contaminant pathway at all — no carbon rods to shed metals, no solvent to leave residue — so its risk lands at a flat zero. Why it matters: studies cited by Greska's show metal impurities can turn pure C60 ferromagnetic (iron) or superconductive (potassium), while trapped solvent can ride C60 deeper into tissues.
The color test: pure C60 is black
You don't need a lab to spot solvent-extracted C60. You need your eyes.
Per published optical chemistry (and Wikipedia's own entry on Buckminsterfullerene), pure solid C60 is black. It only turns purple or magenta when it has interacted with an aromatic solvent like toluene — the solvent forms "solvation shells" that make the C60 cluster into light-reflecting crystals. Other solvents tint it yellow, pink, or brown.
In fairness: brands like C60 Purple Power embrace the purple color and argue their sublimation process is solvent-free, attributing the hue to normal C60-in-oil optics. The science of why C60 turns purple in toluene is settled; whether a given purple oil contains residual solvent is the point of contention. Greska's sidesteps the debate entirely by staying black.
Why 20 nanometers beats 1,200
A C60 antioxidant can only protect the parts of the cell it can physically reach.
Greska's reports its non-solvent process yields individual, non-clustered 20-nanometer spheres, versus the roughly 1,200-nanometer clusters typical of solvent-extracted C60. That's a 60× difference in diameter — and because volume scales with the cube of the radius, Greska's describes its particles as up to ~200,000× smaller by volume, packing an estimated 80 trillion C60 molecules per serving.
Why care? Larger clusters can only mop up free radicals in the fluid around cells. Particles small enough to cross the cell membrane can work at the mitochondria — the exact spot where most free radicals are generated. Smaller, cleaner spheres mean more surface area, more reaction sites, and access to where oxidative stress actually starts.
Particle size showdown
Shown on a true (non-logarithmic) scale — Greska's 20 nm barely registers next to a 1,200 nm cluster, which is exactly the point. Figures per Greska's published specifications; "200,000× smaller" refers to volume (60³), reconciling the diameter and volume claims.
Purity you can put on a lab report
"99.99% pure" is a marketing number. Greska's publishes the actual elemental breakdown.
Greska's 3rd-party elemental assay
Reported result: 99.48% carbon, 0.52% oxygen — no other elements or contaminants detected.
Here's a distinction the industry blurs. When most brands say "99.99% pure," they mean the purity of the carbon molecule itself — not that the finished product is free of solvent residue or developed specifically for human consumption.
Greska's publishes a third-party assay showing its C60 is 99.48% carbon and 0.52% oxygen, with no other elements or contaminants detected. No iron. No potassium. No sulfur. No trapped toluene. Combined with food-grade certification — which by definition can't be granted if solvent residue is present — it's about as clean a story as C60 gets.
Meet the field (fairly)
Greska's leads our assessment — but these are real companies with real strengths. Here's an honest look.
Greska's Carbon 60
- Only major non-solvent, non-carbon-rod process
- Pure black 20 nm spheres, non-crystalline
- 99.48% C / 0.52% O, 3rd-party tested
- Food-grade certified
- Aerospace carbon engineer founder
- The president often answers the phone
C60 Purple Power
- 99.99% sublimated C60
- Organic EVOO, avocado & MCT oils, gummies
- 3rd-party tested; made in USA
- Signature purple/magenta color
- Strong brand & wide distribution
- Sizes from 2 oz to 16 oz
MyVitalC · ESS60
- Made by SES Research — 30+ years in fullerenes
- ESS60 purified for human consumption
- Founder Chris Burres worked with the Rice Nobel team
- Stirred in the dark under inert gas
- Cobalt-blue UV-protective glass
Also in the market: SES Research (wholesale/bulk), PureC60OliveOil, BioLight BioC60, Wizard Sciences, and various 360-style resellers. Most source from arc/solvent or sublimation supply chains.
Cost per daily serving
Based on each brand's own recommended daily serving, using its best-value bottle: Greska's $76 ÷ 45 servings ≈ $1.69; C60 Purple Power's olive oil is $65–$410 across 2–16 oz, and even the best-value 16 oz works out to ≈ $4.27 per 1-teaspoon serving; MyVitalC's 240 ml (8 oz) is $208.95 ÷ 48 ≈ $4.35 per serving (its 120 ml is ≈ $4.58). Smaller bottles cost more. One important caveat: a "serving" is a different volume in each product — Greska's concentrated daily serving is ~0.67 mL versus a 5 mL teaspoon for the others — so this compares daily cost, not an identical C60 dose. By the dose each brand tells you to take, Greska's is by far the least expensive per day.
The comparison matrix
Every attribute that actually matters in a C60 oil, side by side.
| Attribute | Greska's Carbon 60 | C60 Purple Power | MyVitalC / ESS60 | Generic solvent C60 |
|---|---|---|---|---|
| Production method | Non-solvent conversion | Sublimation (claimed) | Purified — method undisclosed | Solvent arc, then sublimated |
| Solvents used (ever) | ✓ None | ~ Disputed* | ~ Disputed* | ✗ Yes |
| Color of C60 | Black (pure) | Purple/magenta | Amber/purple | Purple/brown |
| Carbon-rod contaminants | ✓ None (own powder) | Low | Low | ✗ Possible |
| Particle size (as-produced powder) | ~20 nm spheres | Clustered (size undisclosed) | Clustered (size undisclosed) | ~1,200 nm clusters |
| Crystalline? | ✓ Non-crystalline | Crystalline | Crystalline | Crystalline |
| Food-grade certified | ✓ Yes | Not stated | Not stated | ✗ No |
| 3rd-party tested | ✓ Elemental assay | ✓ Yes | ✓ Yes | Varies |
| Carrier options | Olive, sunflower, water | Olive, avocado, MCT | Olive oil, blends | Olive oil |
| Founder pedigree | Aerospace carbon eng. | Wellness brand | Rice Nobel-team alum | — |
| Made in USA | ✓ Colorado | ✓ Colorado | ✓ Texas | Often imported |
| Founder accessibility | ✓ Calls answered by CEO | Standard support | Standard support | — |
*Disputed: C60 Purple Power states its sublimation route is solvent-free. Greska's contends that reaching a 99.99% C60-to-C70 ratio via sublimation typically still requires toluene to separate the fullerenes. SES/MyVitalC's exact purification method isn't publicly confirmed, so it's listed as undisclosed rather than assumed. "Made in USA" reflects each brand's stated US bottling/operations; raw C60 powder sourcing isn't always disclosed. Contested points are marked as such rather than failed.
Where each brand actually lands
An editorial scorecard across the six dimensions that define a premium C60.
C60 brand scorecard
No single brand is perfect, and we scored honestly. MyVitalC/ESS60 earns top marks for scientific lineage and three decades of track record — that's genuinely hard to beat. C60 Purple Power scores well on transparency, organic sourcing, and brand maturity.
But Greska's sweeps the dimensions that define the molecule itself: solvent-free processing, contaminant purity, and particle size/bioavailability. When the question is "whose C60 is the cleanest and most bioavailable," the shape of the chart tells the story — Greska's pushes the outer ring on the metrics that change what's actually in the bottle.
The man who engineered carbon for spacecraft
Most supplement founders come from marketing. Bob Greska came from the launch pad — a career aerospace materials engineer who worked with the most demanding carbon structures on (and off) the planet.
That's the difference behind the bottle: C60 isn't a trend he chased. It's the application of a lifetime spent understanding how carbon behaves at the molecular level — and a refusal to accept that solvents were a necessary evil.
What you actually pay for purity
Premium C60 isn't cheap from anyone — and that's a feature, not a bug.
What a month actually costs
Estimated monthly cost = each brand's per-serving cost × 30, using its best-value bottle and recommended daily serving: Greska's ≈ $51, C60 Purple Power ≈ $128, MyVitalC ≈ $131. Raw sticker prices look closer, but they hide very different bottle sizes and concentrations — what you actually spend per month is the honest yardstick.
Here's what the per-serving math reveals: Greska's isn't just the purest — it's also the least expensive C60 per daily serving of the major brands, at roughly $1.69 versus ~$4.27 for C60 Purple Power and ~$4.35 for MyVitalC (both at their best-value large bottles — smaller sizes cost even more per serving). That's about $51 a month for Greska's against ~$128 and ~$131. Highest purity, smallest particle, solvent-free, and the lowest real cost per day. Dollar for molecule, it isn't close.
Questions people actually ask
Is purple C60 dangerous?
Why is Greska's bottle smaller than competitors'?
What makes Greska's "non-solvent" different from "sublimation"?
Does C60 actually do anything?
Which carrier should I choose — olive oil, sunflower, or water?
The rest of the market is measured against Greska's.
Black, not purple. Solvent-free, not solvent-washed. 20 nanometers, not 1,200. Zero contaminant risk. Engineered by a man who built carbon for spacecraft. When the metric is purity, there's the field — and there's Greska's: the benchmark every other C60 measures itself against.
Explore Greska's Carbon 60 →Disclaimer
Independent editorial comparison for informational purposes — not medical advice. These statements have not been evaluated by the FDA; these products are not intended to diagnose, treat, cure, or prevent any disease. Prices and specs are from each maker’s public materials as of June 2026 and may change; “scores” are an editorial assessment, and brand-specific claims reflect that brand’s representations.
Sources
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Greska's C60 vs. The Competition
The cleanest C60 on the market — at the lowest cost per day. Here is the proof.
What You Actually Pay Every Day
These prices are pulled directly from each brand's website at their minimum recommended daily serving. The secret is serving size. Greska's nano-particle C60 requires only 0.67 mL per day. Every competitor requires 5 mL or more — that is 7.5 times more oil per dose, burning through their bottle far faster.
Full Side-by-Side Price Comparison
Every number pulled directly from each company's website. No estimates. No guessing.
| Brand | Bottle Price | Serving Size | Servings | Cost / Day | Cost / Year | Solvents? |
|---|---|---|---|---|---|---|
| ⭐ Greska's — Sunflower Oil | $76.00 | 0.67 mL | 45 | $1.69 | $617 | None — Ever |
| ⭐ Greska's — Olive Oil | $79.00 | 0.67 mL | 45 | $1.76 | $642 | None — Ever |
| SES Research — Original | $56.95 | 1 tsp / 5 mL | 20 | $2.85 | $1,040 | Solvent Used |
| SES Research — Fine Grade | $76.95 | 1 tsp / 5 mL | 24 | $3.21 | $1,172 | Solvent Used |
| C60 EVO — Olive Oil 4oz | $104.50 | 1 tsp / 5 mL | 24 | $4.35 | $1,588 | Solvent Used |
| ShopC60 — Olive Oil 2oz | $65.00 | 1–3 tsp / 5–15 mL | 12 | $5.42+ | $1,978+ | Solvent Used |
Sources: c60.com, shopc60.com, sesres.com, c60evo.com — verified May 2026.
📌 The reason Greska's costs less per day is not a smaller bottle — it is a smaller serving size. Nano-particle C60 is absorbed more efficiently by your body, so 0.67 mL delivers results that a full teaspoon of competitor oil cannot match.
What You Spend Over a Full Year
At each brand's minimum recommended daily dose, here is what your C60 costs over 365 days.
⚠️ ShopC60 recommends up to 3 teaspoons per day for many users. At that dose, the annual cost jumps well over $3,000 per year — compared to Greska's flat $617. That is a difference of over $2,400 every single year.
Every Advantage, Side by Side
Price per day is only one part of the story. Greska's leads on purity, manufacturing, particle size, and value across every category.
| Feature | ⭐ Greska's | SES Research | C60 EVO | ShopC60 |
|---|---|---|---|---|
| Daily cost (min. dose) | $1.69 | $2.85 | $4.35 | $5.42+ |
| Serving size per day | 0.67 mL | 5 mL | 5 mL | 5–15 mL |
| Solvent-free at every stage | ✓ YES | ✗ NO | ✗ NO | ✗ NO |
| C60 manufactured in-house | ✓ YES | ✗ NO | ✗ NO | ✗ NO |
| Nano-particle size (20 nm) | ✓ YES | ✗ NO | ✗ NO | ✗ NO |
| Oil color | Pure Black ✓ | Purple | Purple | Purple |
| Servings per bottle | 45 | 20–24 | 24 | 12 |
| Contaminants detected | None | Possible | Possible | Possible |
| Annual cost | $617 | $1,040 | $1,588 | $1,978+ |
| Free US shipping | ✓ Orders $100+ | Varies | Varies | Varies |
Greska's C60 vs. Others: The Size Difference
These microscope pictures show the size and shape difference between Greska's Carbon 60 powder and a popular competitor's powder.
Greska's Carbon 60 particles are more than 200,000 times smaller than all other as-produced Carbon 60 powders on the market.
Smaller particles absorb into your body far more efficiently. That is why you only need 0.67 mL per day instead of a full teaspoon — and why Greska's costs so much less daily.
Images courtesy of the Transmission Electron Microscope Laboratory at the Colorado School of Mines, College of Material Sciences.
💡 Smaller particles = better absorption = less oil needed = lower daily cost. This is the entire reason Greska's is $1.69/day while competitors charge $4–5+.
Greska's C60 (left) vs. competitor powder (right) — 200,000× smaller
Uniform Shape. Consistent Size. Every Batch.
These Transmission Electron Microscope (TEM) images show Greska's Carbon 60 powder at extreme magnification — perfectly uniform 20-nanometer spheres, every single particle.
This consistency means every dose contains the exact same concentration of bioavailable C60. No variation. No settling. No guessing whether your bottle is as potent as the last one.
Images courtesy of NanoComposix, Inc.
✓ Perfect 20-nanometer spheres. This is the actual particle you are taking every day — and why such a tiny serving is so effective.
TEM image of Greska's C60 — uniform 20nm spheres, every batch
Zero Contaminants. Not One Atom.
High Angle Annular Dark Field Imaging (HAADF) shows exactly what elements are present in C60 powder from different manufacturers. The results are stark.
In Greska's C60 powder: zero contaminants detected. Not one atom of any foreign element.
In other popular brands: silicon, potassium, chlorine, sulfur, sodium, and magnesium were all found. These are the byproducts of solvent-based manufacturing that other companies use.
Courtesy of the Transmission Electron Microscope Laboratory at the Colorado School of Mines, College of Material Sciences.
🔬 Lab Verified: 99.48% Carbon · 0.52% Oxygen · No other elements · No contaminants.
HAADF elemental analysis — Greska's shows zero contaminants vs. competitors
The Color Tells the Whole Story
If you have seen other C60 products with a deep purple or magenta color, that is not a sign of quality. It is the fingerprint of solvent-based processing. The standard industry method uses toluene — an aromatic solvent — to purify the C60 molecule. Even after removal steps, the purple color proves solvent chemistry was involved.
Greska's C60 is pure black. That is the natural color of clean, concentrated, solvent-free C60 suspended directly in organic oil. Nothing to hide. Nothing removed. Just pure C60 in clean oil.
Black = Solvent-Free
Greska's dark color proves C60 was never processed with toluene or solvents. What you see is exactly what it is — pure C60 in clean organic oil.
Purple = Solvent History
Purple C60 oil is the visual signature of toluene-based manufacturing. Even after "removal" steps, the color gives it away every time.
Made In-House, Start to Finish
Bob Greska makes the C60 himself. No outside powder supplier. No solvent at any stage. Complete control over purity from raw material to finished bottle.
No Middleman = Lower Cost
Because Greska's does not buy powder from an outside supplier, there is no markup chain. That savings goes directly to you — $1.69/day instead of $4–5+.
Before & After Greska's C60
The following images document observed changes from Greska's Carbon 60 — including blood cell behavior, skin response, and more.
What Exactly Is a Nanometer?
A nanometer equals 0.000001 millimeters — incredibly small. Watch this visualization to understand just how tiny Greska's C60 particles really are, and why that size makes such a difference for absorption.
Video courtesy of the AlloSphere Research Group.
Satisfaction-Guaranteed & Free US Shipping on Orders Over $100
The cleanest C60 on the market. Solvent-free. Nano-particle. Made in-house. At just $1.69 a day.
🚚 Free US shipping on orders over $100 · Satisfaction guaranteed · Call Bob directly: (720) 600-6040
TEM and HAADF images courtesy of the Transmission Electron Microscope Laboratory at the Colorado School of Mines and NanoComposix, Inc.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.