The C60 Buyer's Field Guide · 2026

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

The numbers behind the bottle
ProductionSolvent-free
Color of C60Pure black
Particle size20 nm
Purity (assay)99.48% C
Contaminant riskZero
★ The benchmark every C60 is measured against
20 nm
Greska's particle size vs. ~1,200 nm solvent-extracted clusters
99.48%
Carbon by 3rd-party assay — 0.52% oxygen, nothing else
0
Solvents used — ever — in production or carrier oil
2012
Year Bob Greska cracked the non-solvent C60 process
The 30-Second Verdict

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.

Black, not purpleSolvent-free start to finishFood-grade certifiedAerospace-engineered processMade in Colorado, USA
01 — THE BACKSTORY

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.

C60's appeal is as an antioxidant that works at the mitochondrial level — small enough to slip inside cells and help neutralize the free radicals generated during energy production. But here's the catch the industry glosses over: those benefits depend entirely on the C60 being pure. Solvent residue and metal contaminants change the molecule's behavior in unpredictable ways.
1985

The buckyball is born

Kroto, Curl & Smalley discover C60 at Rice University.

1996

Nobel Prize in Chemistry

The discovery of fullerenes is honored with science's highest prize.

2012

The lifespan study

Baati et al. report C60-in-olive-oil nearly doubled the lifespan of treated rats (Biomaterials), igniting the supplement market.

2012

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.

2026

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).

02 — THE DIVIDING LINE

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.

Method A · Most brands

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.

Method B · Premium brands

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.

THE GRESKA WAY
Method C · Greska's only

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

Relative risk of solvent residue & elemental contaminants entering the final product. Editorial assessment based on each method's documented chemistry.

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.

03 — THE TELL

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.

Greska's C60
Natural black suspension
Solvent-free signature
"Purple" C60
e.g. toluene-route products
Solvent interaction
Amber / magenta
Other solvent residues
Crystallized C60
Greska's argument, in one line: their C60 stays black even when first dropped into solvent, because there are no pre-formed crystals to reflect color. In their own demonstration, the powder only turns purple after weeks of soaking in toluene. A product that's purple out of the bottle tells you toluene was already part of its story.

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.

04 — SIZE IS EVERYTHING

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.

Diameter: 60× smallerVolume: ~200,000× smaller80 trillion molecules / serving

Particle size showdown

Approximate particle diameter, nanometers — shown to true scale

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.

05 — THE RECEIPTS

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

Independent lab composition of Greska's Carbon 60 powder

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.

Food-grade status isn't a sticker you buy. It's a certification that structurally confirms zero solvent residue, because solvent residue would disqualify it. That's third-party validation baked into the standard itself.
06 — THE CONTENDERS

Meet the field (fairly)

Greska's leads our assessment — but these are real companies with real strengths. Here's an honest look.

OUR PICK

Greska's Carbon 60

Colorado, USA · family-owned
  • 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
From $76 · 45-day supply (1 oz)
≈ $1.69 / daily serving · lowest cost

C60 Purple Power

Boulder, Colorado · since 2016
  • 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
$65–$410 · 2–16 oz (25 mg/oz)
≈ $4.27 / daily serving (best-value 16 oz)

MyVitalC · ESS60

Houston, TX · SES Research
  • 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
$109.95–$208.95 · 120–240 ml
≈ $4.35 / daily serving (best-value 240 ml)

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

What each brand's recommended daily dose actually costs — lower is better

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.

07 — HEAD-TO-HEAD

The comparison matrix

Every attribute that actually matters in a C60 oil, side by side.

AttributeGreska's Carbon 60C60 Purple PowerMyVitalC / ESS60Generic solvent C60
Production methodNon-solvent conversionSublimation (claimed)Purified — method undisclosedSolvent arc, then sublimated
Solvents used (ever)✓ None~ Disputed*~ Disputed*✗ Yes
Color of C60Black (pure)Purple/magentaAmber/purplePurple/brown
Carbon-rod contaminants✓ None (own powder)LowLow✗ Possible
Particle size (as-produced powder)~20 nm spheresClustered (size undisclosed)Clustered (size undisclosed)~1,200 nm clusters
Crystalline?✓ Non-crystallineCrystallineCrystallineCrystalline
Food-grade certified✓ YesNot statedNot stated✗ No
3rd-party tested✓ Elemental assay✓ Yes✓ YesVaries
Carrier optionsOlive, sunflower, waterOlive, avocado, MCTOlive oil, blendsOlive oil
Founder pedigreeAerospace carbon eng.Wellness brandRice Nobel-team alum
Made in USA✓ Colorado✓ Colorado✓ TexasOften imported
Founder accessibility✓ Calls answered by CEOStandard supportStandard 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.

08 — THE SCORECARD

Where each brand actually lands

An editorial scorecard across the six dimensions that define a premium C60.

C60 brand scorecard

0–10 editorial scoring · higher is better

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.

How we scored: each axis reflects each brand's publicly stated processes, certifications, and credentials — not a lab test we ran. It's an informed editorial assessment, and we've shown our reasoning throughout this piece.
09 — THE PEDIGREE

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.

"Why poison a molecule to purify it?" — the question that started it all.
Martin Marietta
Materials engineering for carbon-fiber spacecraft structures
NASA · New Orleans
Materials point-man on Space Shuttle external tank production
Magellan Probe
Worked on the Venus Magellan probe & the Manned Maneuvering Unit
Boeing 767
Design support for the 767 engine nacelle
Laser-Strike Defense
Developed carbon materials for spacecraft laser-strike defense
Engineering Innovations
Founded 1990 — carbon/Kevlar for medical, sport & aerospace
10 — PRICE & VALUE

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 30-day cost at each brand's recommended daily serving — lower is better

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.

11 — STRAIGHT ANSWERS

Questions people actually ask

Is purple C60 dangerous?
Not necessarily "dangerous," but the purple color indicates the C60 has interacted with an aromatic solvent like toluene and exists in a clustered, crystalline state. Greska's position is that residual solvent can never be fully removed and can carry deeper into tissues. Brands selling purple C60 argue their sublimation process is solvent-free. Greska's avoids the entire debate by staying naturally black.
Why is Greska's bottle smaller than competitors'?
Concentration. Greska's 1 oz bottle is a 45-day supply because the C60 is highly concentrated and the particles are tiny (≈20 nm). A larger 8 oz competitor bottle contains more oil but more dilute, clustered C60. Volume is not the right yardstick — molecules delivered and their bioavailability are.
What makes Greska's "non-solvent" different from "sublimation"?
Sublimation is solvent-free only as a heating step — the fullerene feedstock is typically solvent-extracted first, and the "99.99%" it advertises is just the ratio of C60 to higher fullerenes like C70, not freedom from solvent. Reaching that ratio usually reintroduces toluene to separate the C60 from the C70. Greska's makes its own C60 powder and converts it with a proprietary process that uses no solvents and no carbon rods at any stage — so there's nothing to separate out and nothing to remove.
Does C60 actually do anything?
C60 is studied primarily as a potent antioxidant that can act at the mitochondrial level. The famous 2012 Baati rat study reported major lifespan extension attributed to reduced oxidative stress. That said, it was an animal study and human longevity evidence is still emerging. C60 supplements are sold for general cellular and antioxidant support — not to diagnose, treat, cure, or prevent disease.
Which carrier should I choose — olive oil, sunflower, or water?
Olive oil is the classic carrier (it's what the research used) and is rich in polyphenols. Greska's low-omega-6 sunflower option suits those watching omega-6 intake, and the water-based "hydrated fullerenes" version is calorie-free and doubles as a topical. All three use the same solvent-free C60.
Proved It · The Verdict

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

🚚   FREE SHIPPING ON ALL U.S. ORDERS OVER $100   🚚

C60 Price & Value Comparison · Verified May 2026

Greska's C60 vs. The Competition

The cleanest C60 on the market — at the lowest cost per day. Here is the proof.

$1.69 ⭐ Greska's — Per Day
$2.85 SES Research — Per Day
$4.35 C60 EVO — Per Day
$5.42 ShopC60 — Per Day

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.

$1.69per day
⭐ Greska's Sunflower Oil — $76 bottle · 45 servings
✓ Only 0.67 mL/day · Solvent-Free · Made In-House · 45 days per bottle
$1.76per day
⭐ Greska's Olive Oil — $79 bottle · 45 servings
✓ Only 0.67 mL/day · Solvent-Free · Made In-House · 45 days per bottle
$2.85per day
SES Research Original — $56.95 · 20 servings
1 teaspoon (5 mL) per day — 7.5× more oil than Greska's · bottle lasts only 20 days
$3.21per day
SES Research Fine Grade — $76.95 · 24 servings
1 teaspoon (5 mL) per day · bottle lasts only 24 days
$4.35per day
C60 EVO Olive Oil 4oz — $104.50 · 24 servings
1 teaspoon (5 mL) per day · bottle lasts only 24 days
$5.42+per day
ShopC60 / C60 Purple Power 2oz — $65 · 12 servings
⚠ 1–3 tsp recommended · bottle gone in 12 days · at 2 tsp/day = over $10/day!

Full Side-by-Side Price Comparison

Every number pulled directly from each company's website. No estimates. No guessing.

BrandBottle PriceServing SizeServingsCost / DayCost / YearSolvents?
⭐ Greska's — Sunflower Oil$76.000.67 mL45$1.69$617None — Ever
⭐ Greska's — Olive Oil$79.000.67 mL45$1.76$642None — Ever
SES Research — Original$56.951 tsp / 5 mL20$2.85$1,040Solvent Used
SES Research — Fine Grade$76.951 tsp / 5 mL24$3.21$1,172Solvent Used
C60 EVO — Olive Oil 4oz$104.501 tsp / 5 mL24$4.35$1,588Solvent Used
ShopC60 — Olive Oil 2oz$65.001–3 tsp / 5–15 mL12$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.

⭐ Greska's / Year$617$1.69 per day
vs
SES Research / Year$1,040$423 more per year
vs
C60 EVO / Year$1,588$971 more per year
vs
ShopC60 / Year$1,978$1,361 more per year

⚠️ 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'sSES ResearchC60 EVOShopC60
Daily cost (min. dose)$1.69$2.85$4.35$5.42+
Serving size per day0.67 mL5 mL5 mL5–15 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 colorPure Black ✓PurplePurplePurple
Servings per bottle4520–242412
Contaminants detectedNonePossiblePossiblePossible
Annual cost$617$1,040$1,588$1,978+
Free US shipping✓ Orders $100+VariesVariesVaries

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+.

Microscope comparison of Greska C60 powder vs other brands showing 200000x smaller particle size

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.

Transmission Electron Microscope image showing Greska uniform 20nm C60 spheres

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 proving zero contaminants in Greska C60 vs other brands

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

All prices verified directly from brand websites in May 2026: c60.com, shopc60.com, sesres.com, c60evo.com.
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.