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★★★★★
Rated 4.9 • 12,450+ Sold

Stop Letting Canker Sores Ruin Your Favorite Foods, Drinks & Conversations.

Cankera is daily nutritional support designed to help address the factors that can contribute to recurring flare-ups — before the next one starts.

✦ Less Frequent Flare-Ups†
♥ Faster Natural Repair†
✓ Fills Nutrient Gaps†
✦ Stronger Oral Tissue†
♥ Calmer Stress Response†
✓ 1,000 mcg Active B12

93% Sold
  • Free U.S. Shipping
  • 90-Day Money-Back Guarantee
  • Third-Party Tested
How Cankera Works

Recurring canker sores usually aren't about one thing. Cankera covers four areas in one daily serving:*

  • Nutrient gaps: B12, folate, zinc, D3, B2, B6, copper
  • Oral tissue: vitamin C, zinc, aloe vera
  • Stress: ashwagandha, L-theanine, magnesium
  • Inflammation balance: curcumin, quercetin
Why These Doses and Forms
  • 1,000 mcg B12: the dose used in a clinical trial on recurring canker sores
  • Active forms: no conversion step needed
  • Zinc + copper: so zinc doesn't drain your copper
  • No iron, no lysine: iron is hard on the stomach; lysine is for cold sores
Full Ingredients & Supplement Facts
Cankera Supplement Facts

100% vegan. Gluten, dairy, soy and nut free. No sugar or artificial additives.

How to Take It
  • 3 capsules once a day, ideally with a meal
  • Every day, even without a sore
  • Give it at least 3 months
  • Pregnant, breastfeeding, on medication or have liver problems? Ask your doctor first.
Is Cankera Right for Me?

Made for you if canker sores keep coming back and gels or rinses only help the sore you already have.

See a doctor if a sore lasts more than 3 weeks, is unusually large, or comes with a fever.

90-Day Money-Back Guarantee

Try Cankera for 90 days. If you don't notice a difference, we'll refund your order. No questions asked.

*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.

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Real People. Real Experiences.

See what customers are saying about Cankera™.

Individual customer experiences are personal and may vary. Testimonials do not guarantee or represent typical results. Cankera™ is a dietary supplement and is not intended to diagnose, treat, cure, or prevent any disease.

What to Expect

What to Expect,
Month by Month

Here's what you may notice as you take it every day.

1 Weeks 1–4
2 Months 2–3
3 Months 3–6
Weeks 1 to 4

Your levels start building

You may notice:
  • The sores that do show up feel smaller and less intense.
  • They calm down faster, instead of dragging on for two weeks.
  • You stop bracing yourself every time you take a bite.
Months 2 to 3

The gaps get longer

You may notice:
  • More weeks between sores.
  • Small ones fading before they turn into big ones.
  • Ordering food without thinking about which side of your mouth to chew on.
Months 3 to 6

The cycle starts to break

You may notice:
  • A month or more without a single sore.
  • No more checking your mouth with your tongue every morning.
  • Saying yes to dinners, trips and big days without worrying about your mouth.

This is also the window where clinical research on B12 saw its biggest difference, in months 5 and 6.

That's why we recommend starting with at least 3 months.

CANKERA VS. TOPICALS

Gels Treat the Sore.
Cankera Works Between Them.

Topical products can make a sore hurt less or heal a little faster. But they're not designed to change how often the next one comes back.

Cankera daily supplement
CANKERA™
Daily Nutritional Supplement
Generic topical oral gels and rinses
TOPICAL PRODUCTS
Gels • Rinses • Patches
✓
WHEN IT WORKS Every Day,
Between Sores*
✦
WHAT IT TARGETS What's Happening
Inside Your Body*
✓
HOW IT FEELS Nothing to Apply
↗
HOW LONG IT HELPS Builds Over Time
3
HOW YOU USE IT 3 Capsules,
Once a Day
•
WHEN IT WORKS After a Sore
Appears
•
WHAT IT TARGETS The Sore You
Already Have
•
HOW IT FEELS Often Stings
or Burns
•
HOW LONG IT HELPS Temporary Relief
•
HOW YOU USE IT On the Sore,
Several Times a Day
✦
YOU DON'T HAVE TO CHOOSE Keep a gel for the bad days.

And let Cankera work on all the other ones.

ONE FORMULA. 14 INGREDIENTS.

Buying These Separately Would Cost About $122 a Month

And you'd still be missing half the formula.

Bought on its own Monthly cost
Vitamin B12 $12
Ashwagandha $25
L-theanine $20
Magnesium $20
Zinc $10
Vitamin D3 $10
Curcumin $25
TOTAL $122
+
AND THAT'S NOT EVEN EVERYTHING You'd still be missing half the formula.

Even then, you'd still need folate, vitamin C, B2, B6, copper, quercetin and aloe vera.

You'd be opening seven bottles every morning and trying to balance zinc and copper on your own.

THE SIMPLER WAY

Cankera puts all 14 ingredients into one daily serving.

14 INGREDIENTS
1 MONTH $39.99 per month
BEST VALUE
3-MONTH BUNDLE $26.66 per month BUY 2, GET 1 FREE
✓

That's less than a quarter of what you'd pay buying them separately.

Get 3 Months: Buy 2, Get 1 Free
The Story Behind Cankera

I Built Cankera Because
Nothing Else Existed

Tommy Lee, Founder of Cankera
Tommy Lee Founder of Cankera

I've had canker sores since I was 8 years old.

For most of my life, I did what everyone does. Salt. Gels. Rinses. Waiting it out. Then another one.

When I finally asked my doctor how to stop them from coming back, his answer stuck with me: nothing exists to prevent them, and since they're not dangerous, they're barely studied.

So I studied them myself. I dug into what's behind recurring canker sores, found the ingredients with real research behind them, and worked with a lab to put them into one daily formula.

Then I tested it on myself.

The difference was bigger than I expected. They came back far less often. The small ones faded in about 2 days instead of turning into big ones. And the big ones closed in about 5 days instead of the 10 to 14 I'd lived with my whole life.

”

I made Cankera for everyone who's been told to just live with it.

Tommy Founder of Cankera
Individual results vary.
90 Days
Our Money-Back Guarantee

Try It for 90 Days.
If It Doesn't Work for You, It's Free.

You've already spent money on gels, rinses and supplements that didn't change a thing. You shouldn't have to take another gamble.

So take Cankera every day for up to 90 days. If you don't notice a real difference, email us at [support email] and we'll refund your order in full. No questions asked.

We give you 90 days because Cankera works from the inside, and real change takes time. You get all of that time to decide, with zero risk.

How it works

1 Take Cankera daily for up to 90 days.
2 Not happy? Send us one email.
3 Get a full refund.

The only risk is another year of waiting it out.

Try Cankera Risk-Free 90-Day Money-Back Guarantee