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🧬 Pre-Activated Formula
💧 99.9% Bioavailability
⚡ 5,000mcg Therapeutic Dose
🧠 All 5 B-Vitamins for Full Myelin Repair
✨ No Side Effects or Brain Fog
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Standard shipping typically takes 5-7 business days.
We offer a 30-day return policy for all unused items in their original packaging.
OurLiquid B12 has an overall rating of 4.8/5 stars. If not satisfied within 90-Days of delivery, feel free to contact us at the email below to initiate the return process!
What's Really Happening Inside Your Body
1: Your Nerves Are Breaking Down
After 50, myelin coating breaks down. Nerves get exposed. That's the burning at night. To rebuild it, you need 5,000mcg active B12 plus four other B vitamins. Without all five, repair stalls. Sparta delivers 5,000mcg methylcobalamin + the complete 5-in-1 stack.
2: Why Pills Don't Work
Drugstore B12 is cyanocobalamin. Your body needs the MTHFR enzyme to convert it. After 50, you lose that enzyme. Only 30-40% converts. Stomach acid destroys the rest.Taking 2,000mcg in pills = 300mcg reaching your nerves. Sparta uses methylcobalamin—pre-activated. Sublingual absorption: 60 seconds, 99.9% bioavailable.
3: Toxic Buildup
When cyanocobalamin can't convert, a toxic compound called homocysteine builds up in your blood. It damages nerve tissue, restricts blood flow, and accelerates the burning and tingling you feel every night.
Sparta's Methylcobalamin + Folate clear homocysteine directly — stopping the damage at the source.
1: Your Nerves Are Breaking Down
After 50, myelin coating breaks down. Nerves get exposed. That's the burning at night. To rebuild it, you need 5,000mcg active B12 plus four other B vitamins. Without all five, repair stalls. Sparta delivers 5,000mcg methylcobalamin + the complete 5-in-1 stack.
2: Why Pills Don't Work
Drugstore B12 is cyanocobalamin. Your body needs the MTHFR enzyme to convert it. After 50, you lose that enzyme. Only 30-40% converts. Stomach acid destroys the rest.Taking 2,000mcg in pills = 300mcg reaching your nerves. Sparta uses methylcobalamin—pre-activated. Sublingual absorption: 60 seconds, 99.9% bioavailable.
3: Toxic Buildup
When cyanocobalamin can't convert, a toxic compound called homocysteine builds up in your blood. It damages nerve tissue, restricts blood flow, and accelerates the burning and tingling you feel every night.
Sparta's Methylcobalamin + Folate clear homocysteine directly — stopping the damage at the source.
Real People. Real Nerve Relief.
Here's what that actually feels like.
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Sandra T. , 61 Verified Buyer"I put off buying this for almost 6 months because of the price. In that time the numbness in my left foot spread to my right. My doctor told me nerve damage gets harder to reverse the longer you wait. I wish someone had told me that sooner. Been on this two months now and the tingling has reduced significantly. Just don't do what I did and wait."
B-Complex Methylated Drops
$61.00
Purchased March 14, 2025
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Sarah M. , 45 Verified Buyer"I'll be honest, I almost didn't buy this. I'd already wasted money on three different B12 supplements and felt absolutely nothing. My sister kept pushing me to try it so eventually I caved. Within about 2 weeks I noticed I was actually sleeping through the night. The burning isn't completely gone but it's maybe 30% of what it was. I'm on my third bottle now and I genuinely don't want to find out what happens if I stop."
B-Complex Methylated Drops
$61.00
Purchased March 14, 2025
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Michael R. , 65 Verified Buyer"I spent two years on Gabapentin thinking that was just my life now. Brain fog, weight gain, still waking up at 3am anyway. My neurologist actually mentioned methylcobalamin and sublingual delivery so I started looking into it and found this. Honestly embarrassed it took me this long. The nighttime burning has calmed down so much. I feel like myself again for the first time in years."
B-Complex Methylated Drops
$61.00
Purchased February 28, 2025
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Jessica L. , 59 Verified Buyer"I'm a retired pharmacist so I don't just take supplements blindly. The cyanocobalamin vs methylcobalamin science is real and the sublingual delivery is legitimate. What I didn't expect was how fast I'd notice a difference. Week two my husband asked me why I wasn't complaining about my feet anymore. I hadn't even realized the burning had quietly faded. That's when I knew this was actually working."
B-Complex Methylated Drops
$61.00
Purchased January 5, 2025
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Carol B , 59 Verified Buyer"The very first thing that changed was my sleep. I didn't even connect it at first — I just noticed I stopped waking up at 2am. Then I realized the burning in my feet was quieter. Then the tingling in my hands started fading. It happened so gradually I almost missed it. I'm 8 weeks in now and I can walk my dog in the morning without thinking about my feet the entire time. That's huge for me."
B-Complex Methylated Drops
$61.00
Purchased March 14, 2025
The Pharmaceutical-Grade, 5-in-1 Nerve Repair Stack
Each ingredient was chosen for its specific role in nerve repair — working together to rebuild myelin, restore signaling, and stop the burning at the source.
The bioactive form of B12 your nerves use directly. Rebuilds the protective myelin coating that stops nerves from misfiring.
Regulates how your nerves communicate. Stops the random tingling, zapping, and numbness caused by misfiring nerve signals.
Fuels nerve cells with the energy they need to carry out repair. Without it, nerve tissue starves mid-rebuild.
Closes the myelin rebuild cycle that B12 starts. Without it, nerves stay half-healed and burning returns.
Opens blood vessels to damaged nerve tissue so every other ingredient actually arrives where the damage lives.
Clinically Proven. Third-Party Tested.
Less Burning at Night
Finally Sleeping
Felt a Difference within 30 Days
Would Buy Again
REAL NERVE REPAIR IN ONLY 6 WEEKS.
Follow your progress and see what's ahead on your path to recovery
Methylcobalamin absorbs directly into your bloodstream from day one. Sleep starts improving first — your nerves calm down enough to stop waking you up at 3am.
Myelin repair begins. The burning and tingling starts reducing in intensity. Most customers feel their first real sign that something is actually working.
Nerve signaling stabilizes. The 3am wake-ups are mostly gone. Walking and standing feel noticeably more comfortable. Customers describe this as their turning point.
Most customers report the burning has faded, tingling is minimal, and they're sleeping through the night consistently. Your nerves have what they need to stay repaired.
$110+
ANNUAL SAVINGS$444+ per yearwhen switching to Sparta B12 Complex subscription
Spartas Complex Replaces 7+ Supplements
One liquid. One dropper. Everything your nerves need — without the pill cabinet.
Here's what you'd pay buying each ingredient separately:
Why Choose Sparta B12 Complex?
| Feature | Sparta B12 Complex | Traditional Options |
|---|---|---|
| Form | ✅ Pharmaceutical-grade Methylcobalamin | ❌ Cyanocobalamin — less than 30% converts after 50 |
| Delivery | ✅ Sublingual — absorbs in 60 seconds | ❌ Pills destroyed by stomach acid before reaching nerves |
| Addresses Root Cause | ✅ Rebuilds myelin at the source | ❌ Masks symptoms temporarily |
| Gabapentin | ✅ Not needed — targets actual nerve repair | ❌ Mute button with brain fog and dependency |
| Creams & Topicals | ✅ Works from inside the nerve tissue | ❌ Surface relief only — nerves are internal |
| Complete Stack | ✅ All 5 cofactors needed for full myelin repair | ❌ Single ingredients that stall mid-repair |
| Side Effects | ✅ None | ❌ Weight gain, brain fog, dependency risk |
| Long Term Results | ✅ Sustained nerve repair | ❌ Returns when you stop |
| Guarantee | ✅ 90-day full refund | ❌ No refund on prescriptions |
What Customers Feel After 30 Days
I used to get B12 injections for neuropathy in my feet. They helped but omg the cost was insane. I switched to this liquid B complex and honestly the results feel similar. My tingling isn’t constant anymore and the burning sensation calmed down a lot.
VERIFIED PURCHASE
“I’ve been using this for three weeks and noticed real changes in my sleep. My diabetic neuropathy used to keep me up constantly, and supporting my nerves from the inside finally made a difference.”
VERIFIED PURCHASE
My feet were burning so bad I couldn't wear socks. Now I can garden again and walk without constant tingling. Wish I found this sooner.
VERIFIED PURCHASE
"I don't usually trust supplements. I'm a retired nurse and I was skeptical. But the sublingual delivery and methylcobalamin form are legitimate — the science is there. Three months in and the nighttime burning has almost completely stopped."
VERIFIED PURCHASE
Meet the Experts Behind Sparta's Revolutionary Formula
Nerve health expertsDr. Dan SticklerandDr. Mickra Hamiltonaren’t just addressing symptoms — they focus on supporting the nervous system at its core.
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Dr. Daniel L. Stickler
Co-Founder | Chief Medical Officer
Leading advanced clinical work focused on nerve health, function, and recovery. -
Dr. Mickra Hamilton
CEO | International Epigenetics Expert
A pioneering force in precision nerve health and nervous system regulation
90-Day Money Back Guarantee
Nerve repair takes time — so we give you a full three months to feel the difference. If the burning, tingling, or sleepless nights haven't improved, just email us for a full refund. No return required. No questions asked.
We can offer this because 94% of customers who complete the 90 days never ask for it back.
FAQs
Most B12 supplements use cyanocobalamin—a synthetic form your body has to convert before it can use it. Problem is, up to 40% of people can't make that conversion efficiently due to genetics (MTHFR mutations) or age. Our drops use methylcobalamin—the active form your body can use immediately. Plus, sublingual delivery bypasses your gut and goes straight into your bloodstream. It's the difference between filling a leaky bucket and actually filling the tank.
Most people notice a difference within 3-7 days. Some feel more alert within 48 hours. For nerve issues (tingling, burning, numbness), it typically takes 2-4 weeks to see significant improvement as your nerves repair. If you've been deficient for years, give it the full 30 days. Your cells are literally rebuilding—it takes time, but it works.
Your gut destroys most vitamins before they reach your bloodstream—especially if you have low stomach acid, digestive issues, or you're over 40. Sublingual absorption bypasses digestion entirely. The vitamins go through the mucous membranes directly into your blood, giving you near-injection-level bioavailability. That's why people feel it working so fast.
Then you pay nothing. We offer a 30-day empty bottle guarantee. Use the entire bottle—if you don't feel a difference, email us and we'll refund you completely. No questions, no hassle. We're that confident it works because we've seen it change thousands of lives. But if it's not for you, we'll make it right.
Yes. Every batch is third-party tested for purity, potency, and heavy metals before it ships. What's on the label is exactly what's in the bottle.
Smooth raspberry flavor. No chalky aftertaste, no bitterness. Most customers say it's the easiest supplement they've ever taken — which makes staying consistent a lot simpler.
Yes! We ship to most countries worldwide. Shipping costs and delivery windows vary by destination — enter your address at checkout for an accurate estimate.
Once your order ships you'll receive a confirmation email with a tracking link. You can also log into your account to view real-time status updates.