★★★★★ 4.8/5 — rated by 68,000+ verified Nervana customers
The reversible cause most people miss

The #1 reversible cause of tingling — handled.

Low B12 is one of the few genuinely reversible drivers of tingling and numbness — and adults over 60 (and anyone on metformin) absorb it poorly from food. Our fast-absorbing sublingual methylcobalamin slips past the gut and gives your nerves the raw material they need to rebuild their insulation.

Methylcobalamin (active B12)Sublingual — bypasses the gut+ B6, B1, niacin & folateFor tingling & numbness
Add B12 to my order — $24.99 →
🛡 60-day money-back guarantee · 🚚 Ships from the USA · added straight to your cart
Save $10 todayNervana Nerve Fuel B12
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The other half of your routine

Energy from your gummies. Raw materials from B12.

Your Nervana gummies restore the energy your nerves run on. B12 supplies the building block they need to maintain healthy myelin — the insulation around every nerve. One without the other leaves a gap. Together, you’re giving your nerves both the power and the parts.

Why it works

The deficiency hiding behind a lot of nerve symptoms

01

Reversible — if you catch it

Low B12 is a well-documented, reversible contributor to tingling and numbness. Lower B12 levels are linked with more severe neuropathy in the research.

02

Metformin & age steal it

Long-term metformin users have up to 67% higher odds of B12 deficiency, and absorption naturally drops with age. A sublingual form sidesteps the gut entirely.

03

Active, ready-to-use form

Methylcobalamin is the active form your nerves can use immediately — supported by B6, B1, niacin and folate, the full nerve-metabolism team.

Real people. Real relief.

★★★★★
“As a nurse I know how often low B12 gets missed. Added the drops to my gummies and the daytime tingling eased within a couple of weeks.”
Linda D., retired nurse · ✓ Verified Buyer
★★★★★
“If there’s a reversible cause, you want to cover it. This was the obvious one to add.”
Simple, smart add-on
92%reported less daily discomfort*
3rd-partytested for purity
Made inthe USA
Add it to today’s order

Nervana Nerve Fuel B12

$24.99$34.99SAVE $10
✓ Active methylcobalamin B12, sublingual
✓ Bonus B6, B1, niacin & folate
✓ Fast-absorbing liquid drops
✓ 60-day money-back guarantee
Add B12 to my order →
🔒 Secure checkout🛡 60-day guarantee🚚 USA shipping
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Feel the difference in 60 days — or every penny back.

No forms. No return shipping. No questions. If it doesn’t bring you noticeable relief within 60 days, email support@livenervana.com and we’ll refund your entire purchase.

Questions, answered honestly

How do I know if I'm low on B12?

Tingling, numbness, and fatigue are common signs, and risk rises with age and long-term metformin use. A simple blood test confirms it — but because B12 is water-soluble and well-tolerated, many people supplement proactively.

Why sublingual instead of a pill?

Absorption of B12 from the gut declines with age and certain medications. A sublingual liquid is absorbed under the tongue, sidestepping that bottleneck.

Does it work with my gummies?

Beautifully. The gummies supply energy; B12 supplies a key raw material for healthy nerve insulation. They cover different parts of the same job.

Don’t leave a reversible cause on the table.

Give your nerves the building block they may be quietly missing. Try it for 60 days, risk-free — added right to your cart.

Add B12 to my order — $24.99 →
🛡 60-day money-back guarantee · 🚚 Ships from the USA

B12 references: methylcobalamin in diabetic neuropathy RCTs; metformin-associated B12 deficiency and peripheral neuropathy literature.
*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. Results may vary. © 2026 Live Nervana.