It’s smart to research the safety of any supplement before you take
it. In fact, we’d encourage it. If a company discourages you from asking
questions about safety, that should tell you something.
C60 is a relatively new addition to the consumer supplement market.
While the molecule itself has been studied for decades, most people are
encountering it for the first time. So the question “is C60 safe?” isn’t
just natural — it’s the right question to start with.
Here’s what we can tell you: C60 has one of the more unusual safety
stories in supplement history. The most important study ever conducted
on it was specifically designed to test whether it was toxic. Not only
did it fail to find toxicity — it found the opposite.
Let’s walk through the full picture.
What Is C60? A Brief Recap
C60 — Carbon 60, formally known as buckminsterfullerene — is a
molecule composed of exactly 60 carbon atoms arranged in a hollow,
spherical cage. Think of a soccer ball at the molecular level.
It was discovered in 1985, and the discovery was considered so
significant that it earned the Nobel Prize in Chemistry in
1996.
What makes C60 relevant to health is its behavior as a potent
antioxidant. Its cage-like structure allows it to absorb and neutralize
multiple free radicals without being destroyed — acting as a
“radical sponge” that research suggests is up
to 172 times more powerful than Vitamin C.
For a deeper explanation of how C60 works and what makes it unique,
see our complete guide: What Is C60? The
Complete Guide to Carbon 60 [link to: What Is C60 guide]
The
2012 University of Paris Study: Designed to Find Harm, Found the
Opposite
The single most important piece of C60 safety data comes from a study
that wasn’t trying to prove C60 was safe. It was trying to find out how
much C60 it takes to cause harm.
In 2012, researchers led by Tarek Baati at the University of Paris
published a study in the peer-reviewed journal
Biomaterials. The study’s primary objective was to
determine the toxicity profile of C60 dissolved in
olive oil — specifically, to identify the dose at which C60 would start
producing toxic effects in rats.
They never found that dose.
What the Study Found
- No toxic effects were observed at any dose tested.
The researchers explicitly described C60 as having “no acute or subacute
toxicity.” - The control group — rats that received only olive oil or water —
lived normal lifespans. - The C60 group lived up to 90% longer than the
control group. Rats that should have lived roughly 2-3 years were still
alive and healthy approaching nearly twice that span. - The C60 group showed fewer age-related tumors than
the control group. - Liver and kidney function tests showed no signs of organ
damage in the C60 group.
To be clear and transparent: this study was conducted on
rats, not humans. We cannot claim these exact results would
replicate identically in people. The biological mechanisms — antioxidant
protection, reduction of oxidative stress — are relevant across species,
but human clinical trials are still underway and individual results will
vary.
What we can say is this: a rigorous, peer-reviewed study specifically
designed to find toxicity found none. That’s a meaningful data
point.
The C60 Connection to This
Study
The form of C60 used in the Baati et al. study was
ESS60 — the same form C60 Evo uses in every product
today. The lab supplied the ESS60 used in this research. That’s not a
marketing claim — it’s the direct history between C60 Evo’s Chief
Scientist, Chris Burres, who owns the lab (SES Research), and this
molecule.
30+ Years of Manufacturing and
Use
ESS60 has been manufactured continuously since 1991. For the first
two decades, it was produced exclusively for research institutions and
universities. Scientists at labs around the world used it for studies in
biology, materials science, and chemistry.
During that time — and in the years since it became available as a
consumer supplement — no serious adverse effects have been
reported in the published scientific literature.
That’s more than 30 years of production, handling, and use across
both research and consumer settings.
To put that in context: many popular supplements on the market today
have far less safety data behind them. Some of the trendiest compounds
in the wellness space have only a few years of consumer use and limited
published research. C60 — specifically ESS60 — has three decades.
This doesn’t make C60 immune from scrutiny. No supplement should be.
But when evaluating relative safety, a 30-year track record with no
serious adverse events in the literature is significant.
ESS60 vs
Industrial C60: Why the Form Matters
If there is one safety issue that deserves your full attention, it’s
this one.
Not all C60 is the same. The Carbon 60 molecule can be manufactured
to very different standards for very different purposes — and the
version that goes into your body matters enormously.
Industrial-Grade C60
The vast majority of C60 produced worldwide is industrial
grade. It’s manufactured for applications in electronics,
lubricants, materials science, and chemical research. It was never
designed, purified, or tested for human consumption.
Industrial C60 is typically extracted using chemical solvents like
toluene — a petroleum-based compound that is itself toxic. While basic
purification removes the bulk of these solvents, the purification
threshold for industrial applications is far lower than what’s needed
for something you swallow every morning. Industrial C60 may contain:
- Residual solvent traces (toluene and others)
- Heavy metals from the manufacturing process
- Other contaminants and manufacturing byproducts
ESS60: Made for People, Not
Machines
ESS60 (Elemental Safe Spheres 60) is the only form
of C60 specifically developed and purified for human consumption. It
undergoes extended purification processes designed to remove residual
solvents and contaminants down to levels appropriate for biological
use.
ESS60 is the exact form used in the 2012 University of Paris study.
It’s the only form with published safety data from peer-reviewed
research. And it’s been produced by the same lab since 1991.
The Analogy
Think of it like the difference between table salt and road
salt. Both are sodium chloride. They share the same chemical
formula. But you’d never eat road salt — because it contains anti-caking
agents, heavy metals, and other contaminants that make it unsafe for
consumption. The base molecule is the same; the purity and intended use
are not.
The same principle applies to C60. Industrial C60 and ESS60 share the
same molecular structure, but industrial C60 was made for machines.
ESS60 was made for you.
Why This Matters for Safety
If someone is buying a cheap C60 supplement off Amazon with no ESS60
designation, they may be consuming industrial-grade carbon that was
never intended for a living organism. That product may reference the
2012 study on its label — but it’s not the same material that was
studied. The safety data doesn’t transfer.
The most important safety step you can take when choosing a C60
supplement is verifying that it uses ESS60. For a detailed breakdown,
see our full comparison: ESS60 vs C60: What’s
the Difference and Why It Matters [link to: ESS60 vs C60 post]
Reported Side
Effects: What Some Users Experience
We believe in transparency, so here’s what we’ve heard from real
users over the years.
Mild Adjustment Effects
(Temporary)
Some people report mild “detox-like” effects during the first few
days of taking C60. These may include:
- A slight headache that lasts a day or two
- Mild digestive adjustment — subtle changes in
digestion as your body acclimates - A brief period of feeling slightly off before
improvement begins
These effects are typically mild, temporary, and resolve on their own
within a few days. They’re consistent with what many people experience
when starting any new supplement that has antioxidant or cellular-level
effects.
No Serious Adverse Events
In over 30 years of manufacturing and in the published scientific
literature, no serious adverse events have been
reported in connection with ESS60.
Many People Notice
Nothing Negative at All
It’s worth noting that many users report no negative effects
whatsoever when starting C60. They simply begin their daily routine and
notice gradual positive changes over weeks — increased energy, improved
joint comfort, better sleep quality, or enhanced mental clarity. The
transition is smooth and unremarkable.
Everyone’s body is different. If you do experience mild adjustment
effects, they’re generally a sign that the compound is active in your
system, not a sign that something is wrong. However, if you experience
anything that concerns you, stop use and consult your healthcare
provider.
Is C60 FDA Approved?
This is one of the most common questions we get, and it deserves a
straightforward answer.
No, C60 is not FDA approved. But that statement requires
context, because it applies to virtually every supplement on the
market.
Here’s how it works:
How the FDA Handles
Supplements
C60 supplements are classified as dietary
supplements under federal law. Dietary supplements occupy a
different regulatory category than pharmaceutical drugs. The FDA does
not “approve” dietary supplements before they go to market — not C60,
not fish oil, not Vitamin D, not turmeric, not any of them. This is a
common misconception.
What the FDA does require of supplement manufacturers:
- Compliance with Good Manufacturing Practices (GMP)
— standards for how supplements are produced, tested, and
quality-controlled - Accurate labeling — including ingredient lists,
serving sizes, and required disclaimers - No unapproved drug claims — supplement companies
cannot claim their products diagnose, treat, cure, or prevent any
disease - Post-market safety monitoring — the FDA can take
action against supplements that are found to be unsafe or
mislabeled
C60 Evo’s Compliance
C60 Evo complies with all applicable FDA regulations for dietary
supplements. C60 Evo products are properly labeled, manufactured under
appropriate quality controls, and no unapproved drug claims are made
about any C60 Evo product.
The absence of FDA “approval” for C60 is not a red flag — it’s the
standard regulatory framework that applies to the entire supplement
industry. If someone tells you their supplement is “FDA approved,” that
claim itself should raise questions, because the FDA doesn’t approve
supplements.
Who Should Be Cautious
While C60’s safety profile is strong based on available evidence,
certain groups should exercise additional caution. This guidance isn’t
unique to C60 — it applies to virtually any dietary supplement.
Pregnant or Nursing Women
There is not enough published research specifically examining C60 use
during pregnancy or breastfeeding. Until more data is available, we
recommend that pregnant or nursing women avoid C60 supplements or
consult their healthcare provider before use.
People on Blood-Thinning
Medications
Due to C60’s potent antioxidant properties, there is a theoretical
interaction with blood-thinning medications (anticoagulants). This
hasn’t been documented in the literature as a confirmed interaction, but
the precautionary principle applies. If you take blood thinners,
consult your doctor before starting C60.
Children
No published research has specifically studied C60 supplementation in
children. We recommend C60 for adults and suggest consulting a
pediatrician before giving it to a child.
Anyone with a Medical
Condition
If you have any ongoing medical condition or take prescription
medications, consult your healthcare provider before starting C60 or any
new supplement. Your doctor can evaluate potential interactions with
your specific medications and health profile.
The Broader Point
This isn’t a list of dangers. It’s the same responsible guidance that
applies to any supplement — from Vitamin C to magnesium to fish oil. The
responsible approach is always to consult your healthcare provider when
you have specific health concerns or take medications.
How to Use C60 Safely
If you’ve decided to try C60, here are the practical steps to make
sure you’re using it safely and effectively.
1. Start Gradually
Rather than jumping straight to a full serving, consider starting
with a smaller amount — half a tablespoon or less — for the first few
days. This allows your body to adjust and helps you identify how you
respond. After the first week, you can work up to the standard daily
serving of one tablespoon.
2. Take It Consistently
C60 is not an acute-response supplement — you won’t feel a dramatic
effect 30 minutes after your first dose. Its benefits build over time
through consistent daily use. Most people who report the best results
are the ones who take it every day.
3. Store It Properly
C60 in olive oil should be stored in a dark bottle at room
temperature, away from direct light. Light and heat can degrade
the olive oil carrier over time. Keep the bottle sealed when not in
use.
4. Buy ESS60 from a
Reputable Manufacturer
This is the most important safety step. Do not buy generic C60 from
unknown sources. Verify that the product uses ESS60, and that the
company manufactures or directly sources from a lab with a documented
track record. If the product doesn’t specify ESS60, assume it’s
industrial grade.
5. Consult Your Healthcare
Provider
If you take prescription medications, have a medical condition, or
are pregnant or nursing, talk to your doctor before starting. Bring the
product information with you so your provider can make an informed
assessment.
For complete guidance on dosage, timing, and methods of taking C60,
see: How to Take C60: The Complete
Beginner’s Guide [link to: How to Take C60]
Frequently Asked Questions
Has anyone had a bad
reaction to C60?
In over 30 years of ESS60 manufacturing — first for research
institutions and now for consumers — no serious adverse reactions have
been reported in the published scientific literature. Some users
experience mild, temporary adjustment effects (slight headache or
digestive changes) in the first few days, which typically resolve
quickly. If you experience any reaction that concerns you, discontinue
use and consult your healthcare provider.
Can I take C60 with other
supplements?
Most people take C60 alongside their existing supplement routine
without issue. C60 in olive oil is a straightforward compound — it’s
Carbon 60 dissolved in organic extra virgin olive oil. That said, if you
take a large number of supplements or have a complex health regimen,
it’s always wise to discuss additions with your healthcare provider.
Is C60 safe for long-term
use?
Based on the available evidence, yes. ESS60 has been manufactured and
used for over 30 years. The 2012 University of Paris study administered
C60 in olive oil to rats over an extended period with no toxicity
observed at any point. Many C60 Evo customers have been using the
product daily for years and report sustained benefits. Long-term human
clinical data is still being gathered, but nothing in the existing
research or three decades of use suggests a concern with ongoing daily
use.
Is C60 safe for pets?
Many pet owners give C60 to their dogs, cats, and horses and report
improvements in energy, mobility, and coat quality. The same safety
principles apply: use ESS60 (not industrial C60), adjust the serving
size based on your pet’s body weight, and consult your veterinarian if
your pet has health conditions or takes medications. C60 Evo offers
products that pet owners commonly use for their animals.
Can C60 interact with
medications?
No specific drug interactions with C60 have been documented in
published research. However, because C60 is a potent antioxidant, there
is a theoretical possibility of interaction with blood-thinning
medications (anticoagulants) and potentially with other drugs that are
sensitive to antioxidant activity. If you take any prescription
medications, consult your healthcare provider before starting C60. This
is standard guidance for any supplement with biological activity.
What happens if I take too
much C60?
The 2012 study tested escalating doses of C60 in rats and found no
toxicity at any dose level. There is no established “toxic dose” of
ESS60 in the published literature. That said, more is not necessarily
better. The recommended daily serving of one tablespoon is based on the
concentrations used in the research. Taking significantly more than the
recommended amount is unlikely to produce proportionally greater
benefits, and we always recommend following the suggested use on the
label.
Is C60 legal?
Yes. C60 is completely legal to sell and purchase in the United
States. It’s classified as a dietary supplement and is available without
a prescription. There are no state or federal restrictions on the sale
or possession of C60 supplements. C60 Evo products comply with all
applicable regulations governing dietary supplements.
The Bottom Line on C60
Safety
Here’s the summary:
- The most rigorous study ever conducted on C60 was designed
to find toxicity and found none - That study showed C60 in olive oil extended lifespan by up to 90% in
rats — with no harmful effects at any dose - ESS60 has been manufactured and used for over 30
years with no serious adverse events in the published
literature - Many popular supplements have far less safety data behind them
- The most important safety step is choosing the right form:
ESS60, not industrial-grade C60
No supplement is appropriate for every person in every situation. If
you’re pregnant, nursing, taking medications, or have a medical
condition, consult your healthcare provider. That’s not a C60-specific
caveat — it’s responsible health practice.
But if you’re a healthy adult looking for a powerful antioxidant with
a strong safety profile and decades of research behind it, C60 has a
track record that most supplements can’t match. And the single most
important decision you’ll make is choosing ESS60 over generic industrial
C60.
The lab behind C60 Evo has been manufacturing this molecule since
1991. The lab supplied the ESS60 used in the landmark 2012 study. And
C60 Evo stands behind the safety and quality of every product it
sells.
Shop C60 Evo ESS60
supplements >>> [link to: Shop page]
These statements have not been evaluated by the Food and Drug
Administration. C60 Evo products are not intended to diagnose, treat,
cure, or prevent any disease. Always consult your healthcare provider
before starting any supplement.
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Keep Reading
- C60 Research: Timeline of Key Studies — Explore the full timeline of C60 research from 1985 to today
- C60 vs Vitamin C: 172x More Powerful — See how C60’s antioxidant power compares to Vitamin C
- C60 and Mitochondrial Health — Learn how C60 protects your mitochondria at the cellular level
- What Is C60? Complete Guide — Get the full picture with our complete C60 guide
- C60 Benefits: What the Science Says — Discover the health benefits supported by C60 research
The lab behind C60 Evo has been producing Carbon 60 since 1991.
The ESS60 in C60 Evo is the same form used in the landmark research
studies. Shop our full product
line >>>