If you spend any time on Facebook or Instagram looking at blood sugar, diabetes or metabolic-health content, there is a good chance you will eventually start seeing advertisements for cinnamon supplements.

One currently being heavily promoted is Resia Ceylon Cinnamon 7200mg Equivalent with MCT Oil.

At first glance, it actually looks more convincing than many of the multi-ingredient blood sugar supplements we review.

There are no mysterious 15-ingredient proprietary blends. No obscure herbs buried at tiny doses. No attempt to squeeze berberine, chromium, bitter melon, turmeric, apple cider vinegar and half the health-food aisle into a single capsule.

Resia keeps the idea fairly simple:

Ceylon cinnamon + MCT oil.

And there is legitimate research looking at cinnamon and glucose metabolism.

So is this finally one of the more sensible blood-sugar supplements?

Well… partly.

The ingredient is interesting.

The product may be perfectly legitimate.

But when we looked closely at the marketing, some claims made us considerably more cautious.

Resia Ceylon Cinnamon Review: Our Verdict at a Glance

Category	Our assessment
Main ingredient	Ceylon cinnamon
Claimed potency	7,200 mg raw-herb equivalent
Extract	12:1
Delivery	MCT-oil softgel
Daily dose	1 softgel
Blood-sugar evidence for cinnamon	Promising but inconsistent
Evidence specifically for Resia	We found no published Resia clinical trial
Formula transparency	Moderate
Australian regulatory clarity	Limited from the sales page
Marketing quality	Overstated in places
Customer feedback	Mixed outside the Resia website
Our overall rating	6/10

Our short answer

Resia is not a product we would automatically dismiss as a scam. Ceylon cinnamon is a genuine botanical and there is human research suggesting cinnamon supplementation may modestly improve some measures of glucose control.

However, we would not accept Resia’s stronger marketing claims at face value.

In particular, claims around extremely high absorption, predictable improvements within particular timeframes, insulin sensitivity and customer response percentages aren’t adequately supported on the product page with clinical evidence specific to Resia.

If you have diabetes, prediabetes or take glucose-lowering medication, this should be viewed as a possible adjunct, not as an alternative to appropriate medical treatment.

What Is Resia Ceylon Cinnamon?

Resia sells a concentrated Ceylon cinnamon softgel marketed primarily towards adults interested in:

• blood sugar support
• glucose metabolism
• steadier energy
• insulin sensitivity
• metabolic health.

The company says its cinnamon comes from Sri Lanka and uses a 12:1 concentrated extract suspended in MCT oil.

The headline dosage is:

7,200 mg equivalent Ceylon cinnamon per softgel.

Resia recommends taking one softgel daily.

At the time of our review, the company’s site displayed a price of US$34.99, reduced from US$59.99. Importantly for Australians, the site offers an Australia location option but still displays prices in US dollars, so Australian buyers should pay close attention to currency conversion before checking out.

First Things First: What Does “7,200mg Equivalent” Actually Mean?

This is one of the first things we would clarify because 7,200 mg sounds enormous.

It does not necessarily mean there are 7.2 grams of cinnamon sitting inside one little softgel.

Resia says the product uses a 12:1 extract.

In herbal supplement terminology, a 12:1 extract means approximately 12 units of raw botanical material were used to produce one unit of concentrated extract.

So a product describing itself as:

7,200 mg raw cinnamon equivalent

could contain approximately:

600 mg of 12:1 extract.

Interestingly, another product currently being marketed online using the same “Ceylon Cinnamon 7200mg Equivalent with MCT Oil” formulation explicitly describes its softgel as containing 600 mg of 12:1 Ceylon cinnamon extract, equivalent to 7,200 mg of raw bark.

That is an important distinction.

The 7,200 mg figure describes herbal equivalence, not necessarily the physical quantity inside the capsule.

That doesn’t make the dosage misleading by itself. Herbal extracts are commonly described this way.

But consumers should understand what the big number actually means.

What Is Ceylon Cinnamon?

Ceylon cinnamon is primarily obtained from Cinnamomum verum, sometimes called “true cinnamon”.

It is different from Cassia cinnamon, which is the cheaper cinnamon commonly sold in supermarkets.

Both contain biologically active compounds.

The main reason Ceylon cinnamon has become popular in supplements is its much lower level of coumarin.

Coumarin is naturally present in cinnamon and can potentially cause liver problems in sufficiently high amounts, particularly with prolonged exposure.

The US National Center for Complementary and Integrative Health notes that Cassia cinnamon may contain considerably more coumarin, while Ceylon cinnamon generally contains only trace amounts.

That gives Ceylon cinnamon a genuine advantage if someone intends to consume cinnamon regularly.

Is Resia Really “Coumarin Free”?

This is where we would make the language more careful than Resia does.

Resia repeatedly describes its formula as:

“Coumarin-Free.”

But Ceylon cinnamon isn’t necessarily literally devoid of coumarin.

The NCCIH describes Ceylon cinnamon as potentially containing trace amounts.

So we think:

“naturally very low in coumarin”

would be a more defensible description than:

“100% coumarin-free.”

This may seem like nit-picking, but in an evidence-based supplement review, wording matters.

Does Cinnamon Actually Lower Blood Sugar?

This is where the story becomes interesting.

There is some legitimate evidence.

A 2024 systematic review and meta-analysis incorporating 24 randomised controlled trials found that cinnamon supplementation was associated with statistically significant improvements in fasting blood glucose, insulin resistance measures and HbA1c in people with type 2 diabetes.

That sounds encouraging.

But cinnamon research has historically been inconsistent.

An earlier meta-analysis of 10 trials found an improvement in fasting glucose but no statistically significant improvement in HbA1c, with substantial variation between studies.

The US NCCIH therefore remains cautious and says the available research still does not clearly establish cinnamon as an effective diabetes treatment, partly because studies vary considerably in cinnamon species, preparation, dose and quality.

Our interpretation is fairly straightforward:

There is enough evidence to take cinnamon seriously as a potentially useful metabolic supplement.

There isn’t enough evidence to treat it like a proven diabetes medication.

Those are very different statements.

What About Ceylon Cinnamon Specifically?

This matters because many cinnamon studies don’t use Ceylon cinnamon.

A notable newer trial helps.

A randomised, double-blind, placebo-controlled clinical study involving 210 people with type 2 diabetes examined Ceylon cinnamon extract at doses of 250 mg and 500 mg for four months.

This is useful because it investigates Cinnamomum zeylanicum, rather than simply grouping all cinnamon species together.

It provides stronger support for the idea that Ceylon cinnamon deserves further research in glucose management.

But there is still an important limitation when evaluating Resia:

We found no published clinical trial testing the Resia product itself.

Research on an ingredient is not the same thing as research on a branded formulation.

Does Resia’s “7,200mg Equivalent” Match Clinical Research?

Resia says its dosage:

“matches the effective doses used in human studies”.

The problem is that this isn’t as straightforward as it sounds.

Different studies have used:

• different cinnamon species
• different extracts
• different concentrations
• different doses
• different durations.

Some cinnamon studies have used whole cinnamon powder.

Others use extracts.

The recent Ceylon cinnamon trial used 250 mg and 500 mg extracts, not a product described simply as “7,200 mg raw equivalent”.

Because extract ratios and manufacturing methods matter, comparing a raw-herb equivalent number with clinical trial doses isn’t necessarily apples to apples.

We’d therefore like Resia to provide:

• the actual extract quantity
• extraction method
• standardisation data
• cinnamaldehyde content
• the specific trial supporting the chosen formulation.

That would make the dosage claim considerably more meaningful.

What Does the MCT Oil Do?

This is one of Resia’s central selling points.

The company argues that suspending its cinnamon extract in MCT oil improves absorption and describes MCT oil as a delivery system for cinnamon’s fat-soluble compounds.

Conceptually, putting botanical compounds into an oil carrier isn’t unreasonable.

But Resia’s marketing goes considerably further.

Its current website claims:

“99% Bioavailability – Enhanced Absorption.”

That is an unusually precise claim.

We could not identify a published human pharmacokinetic trial on the Resia product demonstrating 99% bioavailability.

Without that, we would treat the figure as a marketing claim rather than an established clinical fact.

This is one of the areas where we’d like considerably more evidence.

Is MCT Oil Proven to Make Cinnamon Work Better?

This is another distinction worth making.

There is a difference between:

MCT oil helps carry fat-soluble compounds

and:

MCT oil has been clinically demonstrated to make this specific cinnamon supplement significantly more effective.

We found evidence for cinnamon itself.

We did not find convincing clinical evidence demonstrating that the Resia cinnamon + MCT softgel produces superior glucose outcomes compared with an equivalent Ceylon cinnamon extract without MCT oil.

That doesn’t mean it doesn’t.

It means the claim hasn’t been established well enough for us to treat it as fact.

Resia’s Marketing Claims: Where We Become More Skeptical

The actual ingredient is probably the least concerning part of this product.

The marketing deserves more scrutiny.

The Resia page currently makes claims including:

• “99% bioavailability”
• “restores insulin sensitivity”
• 85% of users reporting lower blood-sugar numbers and fewer cravings within 1–2 weeks
• 90% experiencing significant metabolic improvements within 4–8 weeks
• 98% of traditional cinnamon supplements being poorly absorbed.

These are very specific figures.

Yet we could not find methodology on the sales page explaining:

• where these percentages came from
• number of participants
• how outcomes were measured
• whether glucose readings were independently verified
• whether there was a control group
• whether the findings were published
• whether the research involved Resia itself.

That makes us uncomfortable using those figures as evidence.

Customer surveys and testimonials can be useful feedback.

They aren’t equivalent to controlled clinical trials.

“FDA-Registered Facility” Sounds More Impressive Than It Is

Resia prominently states that the product is made in an FDA-registered facility.

This sounds reassuring, but consumers should understand what it means.

The FDA explicitly says that it does not approve dietary supplements for safety and effectiveness before they are marketed.

It also says facility registration does not mean the agency has approved or endorsed the facility or its products.

So:

FDA-registered facility ≠ FDA-approved supplement.

We wouldn’t call the statement false.

We just wouldn’t give it the weight the marketing may encourage consumers to give it.

An Australian Consumer Issue: What About the TGA?

Australian buyers should pay particular attention here.

The Resia website allows shoppers to select Australia, but its product presentation and disclaimer are clearly US-oriented. The site displays pricing in US dollars and refers to the FDA rather than Australia’s Therapeutic Goods Administration.

The TGA says medicines included in the Australian Register of Therapeutic Goods normally carry an identification such as:

• AUST L
• AUST L(A)
• AUST R.

We could not identify an AUST number on Resia’s public product page.

That does not by itself prove that an individual Australian purchaser cannot legally import the product under an applicable pathway.

It does mean Australians shouldn’t assume that because an overseas website ships here, the product has been TGA-listed or assessed for supply in Australia.

The TGA specifically warns that health products bought from international websites may not be regulated by the TGA and recommends checking the ARTG and looking for an AUST number.

This is exactly the kind of issue we discuss in our broader Complete Guide to Diabetes Supplements in Australia.

A Bigger Question: Is Resia’s Formula Actually Unique?

This was one of the more surprising things we found.

Search for:

“Ceylon Cinnamon 7200mg Equivalent with MCT Oil”

and Resia is not the only brand selling something remarkably similar.

Other websites currently promote products under essentially the same description, including formulations advertised as:

• 12:1 Ceylon cinnamon
• 7,200 mg equivalent
• MCT-oil softgels
• one softgel daily.

One competing product explicitly lists 600 mg of 12:1 extract equivalent to 7,200 mg raw cinnamon, while other brands sell extremely similar “7,200 mg Equivalent with MCT Oil” products.

That doesn’t prove they’re manufactured in the same factory.

Nor does it prove anything improper.

Private-label supplements are common.

But it makes one Resia statement particularly difficult to accept without evidence.

The company claims:

“Resia is the only true ceylon cinnamon on the market at the correct dosage…”

and describes competitors as copycats.

Given the number of nearly identical products we found, we would want considerably more evidence before accepting that exclusivity claim.

The Customer Reviews Also Deserve Scrutiny

Resia currently displays hundreds of highly positive customer reviews on its own website.

That’s not unusual.

But we also look outside the seller’s website.

At the time of our research, Trustpilot showed only a small number of reviews for Tryresia and the feedback was mixed, with complaints involving:

• subscription cancellation
• refunds
• delivery
• products not producing noticeable blood-sugar changes.

There were also positive reviews from customers saying they were satisfied with the product.

Because the Trustpilot sample is tiny, we would not use it to declare the company a scam.

But we’d equally not ignore it.

If purchasing, we’d pay particular attention to:

• whether you’re selecting a one-off purchase or subscription
• currency
• cancellation conditions
• refund terms.

The 90-Day Money-Back Guarantee

Resia advertises a 90-day money-back guarantee and says returned packages can apparently be empty.

On paper, that’s quite generous.

However, given some external complaints about returns and subscriptions, we would still recommend:

1. taking a screenshot of the guarantee when ordering
2. saving your order confirmation
3. confirming whether the purchase is one-off or recurring
4. keeping correspondence
5. checking your card statement.

That’s ordinary online-shopping caution rather than an accusation against the company.

What We Like About Resia

There are genuinely some positives.

The formula is simple

We prefer this to supplements containing 15 ingredients at unknown or implausibly tiny dosages.

It uses Ceylon cinnamon

That’s preferable for long-term supplementation from a coumarin perspective.

Cinnamon has some human evidence

Unlike many obscure “blood sugar herbs”, cinnamon has been studied extensively enough to suggest there may be genuine modest effects on glucose metabolism.

One capsule a day is convenient

Compliance matters.

A once-daily softgel is considerably easier than powders or taking several capsules three times a day.

No proprietary mystery blend

The headline active ingredient is clear.

What We Don’t Like

This is where Resia loses points.

The marketing is too confident

The evidence for cinnamon is interesting.

It isn’t strong enough to justify making every possible metabolic claim sound settled.

“99% bioavailability” needs evidence

We would want to see a Resia-specific pharmacokinetic study.

The response percentages aren’t adequately explained

Claims such as 85%, 90% and 98% look scientific but mean very little without methodology.

“7,200mg” can sound more impressive than it is

It is an equivalent raw-herb figure rather than necessarily 7.2 grams of extract.

Australian regulatory information is weak

We’d prefer to see an Australian AUST number if this is being actively marketed for supply in Australia, or at least clearer information about its regulatory status.

The formula doesn’t appear especially unique

Very similar 7,200 mg-equivalent Ceylon cinnamon + MCT products are being sold under other brands.

How Does Resia Compare With Berberine?

This is probably the question many readers of our diabetes supplement series will ask.

Berberine and cinnamon are very different substances.

Berberine has accumulated a considerable body of research examining:

• blood glucose
• insulin resistance
• lipid metabolism
• metabolic health.

But standard berberine also has issues with poor absorption and gastrointestinal side effects.

We’ve looked at this extensively in our Complete Guide to Diabetes Supplements in Australia.

You can also compare Resia’s very simple cinnamon formula with some of the products we’ve previously investigated:

• Gluco Gone Elixir Berberine & Ceylon Cinnamon Review
• Katalyx Dihydroberberine “Berberine 2.0” Review
• BulkSupplements Berberine HCl Powder Review
• Melrose FutureLab Berberine Complex Review
• Genetics Labs Australia Berberine Review.

Our general view remains the same:

No supplement should be chosen simply because an advertisement promises dramatic glucose improvement.

Look at:

• ingredient evidence
• real dose
• regulatory status
• medication interactions
• manufacturing transparency
• whether the claims actually match the science.

Resia vs Multi-Ingredient Blood Sugar Supplements

One thing we actually prefer about Resia is that we can tell what we’re evaluating.

Compare it with a product such as Gluco Defend by Clean Nutraceuticals, which combines multiple metabolic ingredients.

Multi-ingredient formulas can look more impressive.

But the more ingredients added to a capsule, the harder it becomes to determine:

• whether each is appropriately dosed
• which ingredient is producing an effect
• which ingredient is causing a side effect
• whether interactions are possible.

Resia avoids much of that complexity.

The problem is that the marketing then asks the single ingredient to do an awful lot.

Could Resia Replace Diabetes Medication?

No.

And this is where we think consumers need to be particularly careful.

Resia’s website contains advertising language aimed directly at people worried about glucose numbers and even states that the product can help people feel in control “without adding another prescription”.

We wouldn’t frame a supplement this way.

Cinnamon may potentially support glucose management.

That is very different from saying someone should delay, reduce or avoid prescribed treatment.

The NCCIH specifically cautions that people with diabetes shouldn’t replace effective medical treatment with an unproven health product. It also notes that supplements can interact with conventional diabetes medications.

If your doctor is recommending medication because your glucose or HbA1c is above target, don’t substitute cinnamon based on an online advertisement.

Can Cinnamon Lower Blood Sugar Too Much?

This is worth considering if you’re already taking glucose-lowering medication.

A supplement that potentially lowers glucose sounds positive until it is combined with:

• insulin
• sulfonylureas
• other glucose-lowering medicines
• substantial dietary changes.

The more interventions you combine, the more important monitoring becomes.

If you’re taking diabetes medication, discuss cinnamon supplementation with your doctor or pharmacist.

What About Liver Safety?

This is one reason Ceylon cinnamon makes sense.

Cassia contains considerably more coumarin, which may be problematic for some people when consumed regularly at high doses.

Ceylon cinnamon is naturally much lower in coumarin.

However:

“lower risk” does not mean “zero risk”.

Large supplemental amounts of any botanical deserve more caution than ordinary culinary use.

People with:

• liver disease
• multiple medications
• pregnancy
• upcoming surgery

should seek professional advice before using concentrated herbal supplements.

Who Might Consider Resia?

Someone might reasonably consider this product if they:

• specifically want Ceylon cinnamon rather than Cassia
• prefer a single-ingredient supplement
• understand that the expected benefit is likely to be modest
• aren’t expecting it to replace medication
• have checked for medication interactions
• are comfortable buying an overseas supplement.

Who Should Probably Be More Cautious?

We’d be particularly cautious for people who:

• use insulin
• take glucose-lowering medication
• have liver disease
• take blood-thinning medication
• are pregnant or breastfeeding
• are considering delaying prescribed diabetes treatment
• expect cinnamon alone to dramatically reduce HbA1c.

Is Resia Ceylon Cinnamon a Scam?

We don’t think the available evidence justifies calling the product itself a scam.

There is a real ingredient.

Ceylon cinnamon has legitimate scientific research behind it.

The concentration concept is plausible.

And the company is selling an identifiable physical product.

But there are enough issues that we wouldn’t give it an unquestioning recommendation either.

Our concerns are primarily about marketing and transparency, not about the existence of cinnamon as an ingredient.

We would like to see:

• a complete Supplement Facts panel easily available on the page
• actual extract weight rather than relying heavily on raw-herb equivalence
• standardisation details
• certificates supporting third-party testing
• evidence supporting the “99% bioavailability” claim
• evidence supporting the 85%, 90% and 98% marketing statistics
• clearer Australian regulatory information
• clearer evidence explaining what differentiates Resia from almost identical products.

Those additions would significantly improve our confidence.

Our Rating: 6/10

Ingredient quality: 8/10

Ceylon cinnamon is the appropriate variety for regular supplementation.

Scientific plausibility: 7/10

There is credible research suggesting cinnamon may provide modest metabolic benefits.

Formula transparency: 6/10

We know the extract ratio and raw equivalent, but we would like more detail around actual extract dose and standardisation.

Marketing accuracy: 4/10

Some claims are considerably more confident and precise than the evidence we found.

Regulatory transparency for Australians: 4/10

The US-focused website isn’t particularly helpful for Australian consumers assessing TGA status.

Value: 6/10

At around US$34.99, it isn’t extraordinarily expensive, but similar formulations are widely available and the formula doesn’t appear obviously proprietary.

Overall: 6/10

Final Verdict: Would We Buy Resia Ceylon Cinnamon?

This is one of those products where our conclusion is:

The ingredient interests us more than the marketing does.

Ceylon cinnamon has enough research behind it to be a reasonable ingredient to investigate for metabolic support.

Using Ceylon rather than Cassia makes sense.

A concentrated extract is convenient.

And a single-ingredient formulation is refreshingly straightforward.

But Resia takes those legitimate positives and stretches them into claims that we think need substantially more evidence.

We aren’t convinced by:

99% bioavailability.

We aren’t convinced that the published evidence establishes predictable improvements within 1–2 weeks.

And we wouldn’t treat customer response percentages displayed on a sales page as equivalent to clinical evidence.

So our position is fairly balanced.

Resia Ceylon Cinnamon may be a legitimate cinnamon supplement with potential modest metabolic benefits. It is not, based on the evidence we found, a proven treatment for diabetes, insulin resistance or persistently elevated blood glucose.

If you simply want to supplement with Ceylon cinnamon and you’re comfortable with the price and overseas purchasing arrangements, Resia could be an option.

But we would compare it carefully with other transparent Ceylon cinnamon products before buying.

And if you’re specifically trying to improve diabetes control, don’t make the decision based on an online advertisement.

Talk to your healthcare professional, continue appropriate glucose monitoring and view supplements as adjuncts rather than replacements for proven care.

More Independent Diabetes Supplement Reviews

If you’re comparing blood-sugar supplements, start with our Complete Guide to Diabetes Supplements in Australia 2026.

You may also find these independent reviews useful:

Gluco Gone Elixir Berberine & Ceylon Cinnamon Review

A useful comparison because it combines Ceylon cinnamon with berberine, chromium, bitter melon and several other ingredients.

Katalyx Dihydroberberine Review – Is “Berberine 2.0” Better?

Looks at a newer form of berberine designed to address absorption problems.

Melrose FutureLab Berberine Complex Review

An Australian-focused review of a berberine phytosome and chromium formulation.

Diabec Glucose Support Review

A broader herbal glucose-support formula aimed specifically at people concerned about diabetes and prediabetes.

Why We Write Independent Reviews of Diabetes Supplements

Our explanation of why blood-sugar supplements deserve more scrutiny than ordinary wellness products.

Frequently Asked Questions

Does Resia Ceylon Cinnamon lower blood sugar?

Cinnamon supplementation has shown potential to modestly improve fasting blood glucose and some other metabolic measures in clinical studies. However, this doesn’t establish that the Resia product itself will lower an individual’s blood sugar, and we found no published clinical trial of Resia specifically.

What does 7,200 mg equivalent mean?

It refers to the amount of raw cinnamon represented by the concentrated extract. With a 12:1 extract, 7,200 mg raw equivalent would correspond to approximately 600 mg of extract.

Is Ceylon cinnamon better than Cassia?

For long-term supplementation, Ceylon cinnamon has the advantage of containing much lower levels of coumarin than Cassia cinnamon.

Is Resia FDA approved?

No dietary supplement should be described as FDA approved in the way an approved medicine is. Resia says it is manufactured in an FDA-registered facility, but the FDA specifically states that dietary supplements aren’t pre-approved for safety and effectiveness and facility registration does not constitute product approval.

Is Resia TGA approved in Australia?

We did not identify an AUST L, AUST L(A) or AUST R number on Resia’s public product page. Australian consumers should check the ARTG and product packaging rather than assuming that overseas availability means the product has been approved or listed for Australian supply.

Can Resia replace metformin or other diabetes medication?

No. There isn’t sufficient evidence to recommend Ceylon cinnamon as a replacement for prescribed diabetes medication.

Does MCT oil improve cinnamon absorption?

It is plausible that an oil carrier may assist delivery of some fat-soluble plant compounds, but we did not find Resia-specific human evidence validating its precise “99% bioavailability” claim.

How long does Resia take to work?

Resia suggests users may notice effects within several weeks, but individual responses vary and those timelines shouldn’t be treated as clinically guaranteed.

Important Medical and Consumer Disclaimer

This review is independent editorial content and is not medical advice.

We have not personally laboratory-tested Resia Ceylon Cinnamon and cannot independently verify the contents of individual capsules, manufacturing quality, ingredient purity or customer testimonials.

Product information and marketing claims were reviewed from publicly available information in August 2026.

Cinnamon and other supplements can interact with medications and may influence blood glucose. If you have diabetes, take glucose-lowering medication, are pregnant, have liver disease or have another medical condition, speak with an appropriately qualified healthcare professional before starting a supplement.

Never stop or change prescribed diabetes medication because of information in a supplement advertisement or product review.