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The Best B12 Spray of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best B12 Spray of 2023. Check our ranking below.

2,246 Reviews Scanned

Rank No. #1

Garden of Life Organics B12 Vitamin - Whole Food B-12 for Metabolism and Energy, Raspberry, 2oz Liquid

ENERGY SUPPLEMENT: One spray daily delivers 500 Microgram (8333percentage DV) vegan vitamin B12 as methyl cobalamin to support energy, metabolism, and heart health
VITAMIN B12: Essential to protect the body against anemia and support a healthy central nervous system, B12 vitamin helps maintain healthy nerve cells and red blood cells and is also needed to make DNA, the genetic material in all cells
CONCENTRATION SUPPLEMENT: This whole food B12 concentration spray are made from real, nutritious foods
LIQUID VITAMIN: Our organic liquid vitamin B12 comes in delicious, mouth watering raspberry spray
ORGANIC VITAMIN: Our real food B12 vitamin is Certified USDA Organic, Non GMO Verified, Vegan Certified, Gluten Free Certified, and Kosher Made

Rank No. #2

USDA Organic Liquid B12 Spray: Support your brain, nervous system, and red blood cells with this delicious USDA organic vegan B12 spray, suitable for many with the MTHFR gene. Maintain your body’s normal energy levels and brain health by supporting neuro health with a tasty berry spray.
Multiple Benefits: Many B12 supplements are often filled with artificial flavors or use cyanocobalamin, a synthetic form of B12 that contains cyanide! Our natural berry-flavored B12 Spray is made with methylcobalamin, which has superior bioavailability to cyanocobalamin and is a preferred form for some with MTHFR gene variants.
Vegan Formula: B12 assists the body’s nervous system, supports cognitive function, and provides energy to those who are deficient. B12 also aids the body in DNA synthesis and red cell production. If you have an MTHFR gene variant, this might be the best type of B12 for you!
Easy-to-Take Liquid Drops: No more hard-to-swallow pills or capsules! Shake well before use. Adults take 2 sprays or as recommended by a physician or healthcare professional. Each bottle comes with 120 servings. Available in a One or Two-Pack!
For Most Lifestyles: MaryRuth's Methyl B12 Spray is USDA Organic, Vegan, Non-GMO, Dairy Free, Nut Free, Gluten Free, Soy Free, Sugar Free, Made in a GMP Facility. Clean Label Project Certified. B Corp Certified.

Rank No. #3

POTENT B-12: Add the essential nutrient Methylcobalamin to your routine with ease!
HIGHLY ABSORBABLE: Delivers 5,000 mcg of daily Vitamin B-12 in 6 simple sprays!
EXPERTLY CRAFTED: Our premium products are backed by our commitment to purity and potency
HORBAACH MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
VEGAN FORMULA: Made with no gluten, wheat, yeast, artificial color or artificial flavor

Rank No. #4

Vitamin B12 Sublingual - Vegan B12 Vitamin Spray - Methylcobalamin Vitamin B12 Liquid Boosts Energy & Mood - Gluten-Free & Non-GMO Vegan Vitamin B12 Drops - Easy Liquid B-12 Spray for Perfect Dosage

Fast Absorption - Our Vitamin B12 Sublingual Fast-Acting Complex will not only be absorbed into your body faster, but it is also more soluble than capsules so that you will get more of the vitamin into your system as well.
Suitable for Vegans and Vegetarians - Our Vitamin B12 is Vegan, Non-GMO, Gluten Free and does NOT contain any Yeast, Wheat, Milk or Milk Derivatives, Lactose, Sugar, Soy, Artificial Colors and Flavors. Each easy to open bottle contains 2 fluid ounces which is a full 60-day supply.
Energy Boost - If you’ve been dragging a lot lately, it could be that you’re not getting enough Vitamin B12. Along with the other B Vitamins, B12 is known for its ability to convert carbohydrates into glucose which leads to energy production. The boost in energy levels will help keep you alert and feeling energized throughout the day.
Speed Up Metabolism - Vitamin B-12 assists the digestive system to function properly and you will notice that if you don't get enough of it you are more prone to constipation and a sluggish digestive system.
Satisfaction Guaranteed - All of our supplements are proudly made and bottled in Salt Lake City, Utah in an approved facility which follows strict GMP guidelines. Our products are Third Party Tested to ensure the highest quality possible and the purity of each batch. If you have any inquiries, our amazing customer service team is always available to take care of your needs.

Rank No. #5

Pure Advantage Liquid Vitamin B12 Methylcobalamin Spray, 1 Ounce

Pure Advantage Vitamin B12 Methylcobalamin 500 mcg spray is an excellent spray vegan certified option for those who need more vitamin B12; B-12 is found mainly in meat sources, so vegetarians can be deficient in this important vitamin
Our Vitamin B12 supplement can also aid in improving immune function, increases energy levels, helps with stress and promotes good sleep, and improves mental alertness
Pure Advantage B12 spray tastes great with no artificial colors or sweeteners added; each spray delivers 500mcg of methylcobalamin making it easy to tailor fit your dosing requirements.
Methylcobalamin spray is more effective as it is the most absorbable form; sprays are known to be more effective in activating the saliva glands allowing the vitamin B12 to enter the bloodstream quickly
Unlike the inexpensive and common cyanocobalamin form of vitamin B12, Pure Advantage B12 supplement spray uses methylcobalamin which is readily available for cellular absorption

SaleRank No. #6

Dr. Mercola,Vitamin Methyl B12 Energy Boost Spray, 0.98 FL. oz (29 mL), (39 Servings), Supports Energy Levels, Helps Support Cognitive Health, Non GMO, Soy Free, Gluten Free

Each Bottle of Methyl Vitamin B12 Energy Boost Spray Contains 39 Servings, 0.98 FL. oz (29 mL)
Following Dr. Mercola’s belief in providing the best quality products, this product is Gluten free, GMO free, Soy Free
Dr. Mercola's B12 Spray utilizes revolutionary pre metered spray technology, our Vitamin B12 Energy Boost comes in an easily absorbed form your body can use almost immediately.*
It tastes great with a natural blackberry flavor. You can also trust Vitamin B12 Energy Boost to be free of any artificial or potential allergy-causing ingredients.
All Dr. Mercola products are backed by a full 30-day money back guarantee. If for any reason you are not satisfied with your purchase, simply return it to us for your money back.

Rank No. #7

GIVOL Vegan Vitamin B12 Liquid Mist Organic 5,000mcg Methylcobalamin

✅ ORGANIC VITAMIN B12 : Our Methylcobalamin is the same form found in our food and cell in our body. Unlike the most commonly used cyanocobalamin (synthetic form of B12), methylcobalamin is the natural and more active form of B12!
✅ No harsh chemicals or preservatives: At GIVOL, we believe that all the products we put into our bodies should be as nature intended. Our only means of preservation B12 Mist is organic orange extract and vegetable glycerin that is derived from coconut.
✅ Suitable for vegans. Contains no yeast, dairy, egg, gluten, wheat, sugar, starch, salt, preservatives, artificial color, flavor or fragrance.
✅ We proudly make and bottle our product here in the United States, so you can rest easy knowing that you are getting the very best ingredients!
✅ If you are not fully satisfied in any way, simply contact us and we will set things right. As a small family-owned company, we want all of our customers to feel taken care of !

SaleRank No. #8

NOW Foods B-12 Liposomal Spray, 1,000 mcg, 2 fl oz (59 ml)

Cardiovascular Health
1,000 mcg B-12 Per Spray
With Folic Acid, TMG and B-6
Nerve Stability and Energy
Non-GMO

Rank No. #9

BetterYou Boost B12 Daily Oral Spray - Convenient Alternative for Tablets - Aid Normal Physiological Functions - Help Increase Energy Levels - 48 Daily Doses - Natural Apricot Flavor - 0.84 oz

SUPPORT ENERGY PRODUCTION. Maintain regular physiological functions and get a decrease in exhaustion and fatigue. This vitamin spray helps the immune system operate normally and maintains normal nerve and red blood cell production.
ALTERNATIVE TO TABLETS AND CAPSULES. Use an oral spray instead of swallowing pills, it's the ideal substitution. This spray is convenient for people who do not enjoy having components in their mouths and is especially suitable for kids.
GLUTEN AND ALCOHOL-FREE. An efficient oral spray that contains no artificial flavors or colors and is alcohol-free. BetterYou takes pride in using natural ingredients and makes sure that all of its products are free of GMOs, sweeteners, and fillers.
INNOVATIVE AND EFFECTIVE PRODUCTS FOR EVERY LIFESTYLE. BetterYou prides itself in creating effective products to support every customer's lifestyle. Our products are natural, mineral, and vitamin-based to provide nutritional support for your body.
DERMATOLOGIST TESTED. BetterYou products are dermatologist tested and are suitable for sensitive skin, as well as pediatrician approved for babies' skin. They are free from palm oil and all our products are vegan.

SaleRank No. #10

NOW Supplements, Vitamin B-12 Liposomal Spray with Folic Acid, TMG and B-6, 2-Ounce

CARDIOVASCULAR HEALTH*: Vitamin B-12 Liposomal Spray from NOW
NERVE STABILITY AND ENERGY*: 1,000 mcg B-12 per spray
VEGAN/NON-GMO: With folic acid, TMG, and B-6.
GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
Packaged in the USA by a family owned and operated company since 1968

Rank No. #11

Future Kind Vegan B12 Liquid Spray (60ml) - Vitamin B12 Liquid for Energy & Cognitive Support - Vegan B12 for Kids & Adults w 500mcg Methylcobalamin - Wild Berry Flavor Liquid Vegan Vitamin B12 Spray

2 Months Supply of Naturally Occurring Methylcobalmin Vegan B12: A clean, sugar-free formula with superior methylated form of B12 with no artificial preservatives. Our liquid vitamin B12 spray has a thumbs up from doctors and dieticians, made at a GMP-registered facility, and third-party verified.
Easy-to-Use Spray in Delicious Natural Wild Berry Flavor: Make getting your B12 a treat each day with a burst of blueberries and strawberries. Our B12 spray supplement is infused with great-tasting natural wild berry flavor. Truly a delight for both kids and adults.
Made in the USA, Perfect for Adults, Teens & Kids 11 Years and Up: Get your daily dose of 500mcg (5 sprays), or adjust up or down depending on your age, for an added layer of protection and energy boost to keep you going.
Supports Energy & Cognition: Taking this B-12 vitamin is your easy and handy energy supplement. With 500mcg of vegan b12 per serving, this formula also helps speed up recovery from fatigue. So up your energy levels and cognitive function for maximum performance.
Brand with a Heart: We’re a B Corp vegan company and we’ve donated to animal sanctuaries and made extra steps to lessen our carbon footprint. The containers of our liquid b12 supplement are also made from 100% sustainable glass because we strongly care for Mother Earth.

Rank No. #12

(2 Pack) - Liquid B12 Spray - Vitamin B12 Sublingual - Vegan B12 Vitamin Spray - Methylcobalamin Vitamin B12 Liquid Boosts Energy & Mood - Gluten-Free & Non-GMO - B 12 Drops Waste Money - Find Out Why

SPRAYING IS SUPERIOR – Deliver accurate doses of liquid B12 vitamin directly to your bloodstream with our convenient spray. Take exactly 500 mcg per spray into your mouth and absorb it quickly under your tongue.
PERFECT POTENCY – Enjoy the unbeatable strength of your vitamin B12 liquid spray. Relish how it maintains potency, constantly sealed in an airtight spray bottle where you never have to remove the cap.
BULK UP ON B12 – Get a boost to your energy and manage your metabolism with our powerful liquid vitamin B12 spray from Salt Lake Supplements. Your spray makes it easy to get exactly what you need of this essential nutrient.
PURITY IS SUPERIOR – Put your trust in Salt Lake Supplements. Your gluten-free, vegan, and non-GMO vitamin B12 methylcobalamin was made in Utah under strict GMP guidelines.
SALT LAKE SERVICE – Show up for excellent sublingual B12 vitamin sprays; stay for world- class service. Contact us if you have any questions, and be sure to check out all of our supplement products.

Rank No. #13

MOONRIN B12 Liquid Spray – Vitamin B12 Drops for Energy and Nerve Function – Support Brain, Memory, Mood, Immune System with B12 Sublingual Vitamins – Maximum Strength Vegan B12 Supplement – 2 Fl Oz

Improve blood circulation with our B12 liquid vitamin drops and ensure better oxygen supply to your brain, enhance cognitive function, memory, and focus, and support both mental and physical health convenient way
Support your nervous system: stress experienced at work and at home can be detrimental to nerve function, but our sublingual B12 vitamins help strengthen the nervous system by enhancing nerve cells protection, allowing you to stay calm in stressful situations
More energy and better mood: vitamin B12 liquid drops ensure faster food absorption and extraction of vital nutrients, thus releasing more energy into the body for you to become stronger, more productive, and less vulnerable to exhaustion and mood swings
Vegan B12 liquid vitamins: as vegans often experience B12 deficiency, unable to resupply it from food, the liquid B12 drops come to the rescue, being US-made, purely nature-sourced, vegan-friendly and organic, and lacking any GMO, wheat, gluten, and harsh chemicals
Rapid absorption, tasty B12 drops: rely on our vitamin B12 liquid formula made to be the most delicious vitamin with its tempting orange flavor, designed to absorb faster than any pills and capsules, improving digestive system and relieving your body of toxins

Rank No. #14

Dr. Mercola,Vitamin Methyl B12 Energy Boost Spray, 0.98 FL. oz (29 mL), (39 Servings), Supports Energy Levels, Helps Support Cognitive Health, Non GMO, Soy Free, Gluten Free

Each Bottle of Methyl Vitamin B12 Energy Boost Spray Contains 39 Servings, 0.98 FL. oz (29 mL)
Following Dr. Mercola’s belief in providing the best quality products, this product is Gluten free, GMO free, Soy Free
Dr. Mercola's Methyl B12 Spray utilizes revolutionary pre metered spray technology, our Vitamin B12 Energy Boost comes in an easily absorbed form your body can use almost immediately.*
It tastes great with a natural blackberry flavor. You can also trust Vitamin B12 Energy Boost to be free of any artificial or potential allergy-causing ingredients.
All Dr. Mercola products are backed by a full 30-day money back guarantee. If for any reason you are not satisfied with your purchase, simply return it to us for your money back.

Rank No. #15

Holistic Health Liquid B12 Black Bear Energy Spray, Hydroxy & Adenosyl B12 Liquid Vitamins for Adults, Vitamin B12 Spray for Increased Oral Absorption, Hydroxy B12 Vitamins for Energy Boost 25 ML

COMBINED HYDROXY/ADENOSYL B12 GOODNESS - The combination of two most active Vitamin B12 forms make Black Bear a superior energy supplement. Its dietary B12 supplement availability boosts energy, lifts mood, and supports focused attention.
BOOSTS NERVOUS SYSTEM HEALTH - Blending the best energy vitamins, this liquid B12 formula is especially great for nerve health as it promotes healthy neurotransmitter activity and supports low levels of harmful particles in the blood for holistic health appraisal.
PROMISES FRESHNESS AND QUALITY - We guarantee that only the most premium blend of Vitamin B12 hydroxocobalamin and adenosylcobalamin reach you. In doing so, we ensure quality maintenance and careful formulation.
ENABLES EASY CONSUMPTION - Black Bear Energy vitamin spray is especially designed to support easier consumption for those who fear swallowing pills, have gut sensitivity, or are allergic to injectable excipients.
SUITS EVERYONE - Liquid vitamins for women and men work wonders. Bringing you the most beneficial energy boosting B12 spray formula, we guarantee universal suitability. It is not linked to any known health issues and it ensures maximum holistic health benefits.

Rank No. #16

Pure Vegan nbpure Bx3 Liquid Vitamin B Spray, Essential Vitamins B6, B9 and B12, 2 FL Ounce

Bx3 is a convenient spray that combines essential vitamins B6, B9, and B12 with TMG to support healthy Homocysteine metabolism
Homocysteine is an amino acid that is broken down to help your body make proteins. There should be low levels of homocysteine in your blood if you have a healthy homocysteine metabolism
Bx3 works in 3 ways to support homocysteine metabolism: B9 + B12 Remethylation, B6 Trans-sulfuration, and TMG Remethylation
Convenient 2 ounce spray with the most absorable forms of B9 (l-methylfolate) and B12 (methylcobalamin). Has TMG unlike many other supplements
Shake well before use. Pump 5 sprays per day into mouth and swallow, or as directed by healthcare provider

Rank No. #17

Complement Triple B12 Spray - 1500 mcg Blend - Enhanced Absorption, Energy, Mood, Nervous System, Cognitive Function - Vegan B12 Liquid - 60 Servings

NATURE'S ENERGY SHOT: Vitamin B12 helps form red blood cells that carry oxygen throughout the body and converts fat and protein into energy
WHY THREE IS BETTER THAN ONE: By utilizing three forms of the vitamin to enhance your body's ability to absorb B12, and act as an insurance policy against any potential absorption issues
FOR YOUR MIND AND BODY: Supports energy levels, mood, nervous system, and cognitive function
DELIGHTFUL TASTE: Triple B12 has a delightful raspberry flavor, tested and loved by both kids and adults.
HOW TO USE: 3 sprays directly into the mouth is equal to one serving. Only $0.38 per serving.

Rank No. #18

nbpure Vitamin B12 Liquid Spray with Methylcobalamin, 500mcg, Organic, Non-GMO, 175 Servings, 1 Ounce

Vitamin B12 is an essential vitamin in the body and plays a key role in the formation of blood, normal brain function, and proper function of the central nervous system
An excellent option for vegans and vegetarians who may suffer from a vitamin B12 deficiency from diet
Uses Methylcobalamin, the most bioavailable form of B12, unlike other supplements which may use cyanocobalamin
Easy-to-use and convenient 1 ounce spray! Great for travel and work to support natural healthy energy, mood, and sleep
Shake well before use. Spray 1 pump directly into the mouth and swallow. Use daily, or as directed by a healthcare professional

Rank No. #19

𝗕𝗲𝘀𝘁 𝗨𝗦𝗗𝗔 𝗢𝗿𝗴𝗮𝗻𝗶𝗰 𝗟𝗶𝗾𝘂𝗶𝗱 𝗕𝟭𝟮 𝗦𝗽𝗿𝗮𝘆: this methylated spray was formulated by Dr. Danielle with a delicious cherry flavor the whole family will love.
𝗩𝗲𝗴𝗮𝗻 𝗠𝗲𝘁𝗵𝘆𝗹 𝗕𝟭𝟮 𝗙𝗼𝗿𝗺𝘂𝗹𝗮: USDA Organic certified B12 Spray is the highest quality, formulated by a Naturopathic Physician and Biochemist.
𝗗𝗲𝗹𝗶𝗰𝗶𝗼𝘂𝘀 𝗮𝗻𝗱 𝗘𝗮𝘀𝘆 𝗟𝗶𝗾𝘂𝗶𝗱 𝗦𝗽𝗿𝗮𝘆: 1500 mcg Vitamin B12 (as Methylcobalamin), other ingredients: Purified Water, Organic vegetable glycerin, Organic natural cherry flavor, citric acid
𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗨𝗦𝗗𝗔 𝗢𝗿𝗴𝗮𝗻𝗶𝗰: Only the best B12 for your family. Vegan, free from common allergens, plant based, dairy free, Nut Free, Gluten and Wheat Free, Nightshade free, sugar free
𝗧𝗼𝗽 𝗩𝗶𝘁𝗮𝗺𝗶𝗻 𝗕𝟭𝟮 𝗦𝘂𝗽𝗽𝗹𝗲𝗺𝗲𝗻𝘁: 120 Servings, 60 Day Supply

SaleRank No. #20

KAL Vitamin B12 Methylcobalamin ActivSpray 2500mcg, Healthy Energy, Metabolism, Nerve & Red Blood Cell Support,* Fast-Acting Liquid B12, Maximum Absorption, Natural Berry Flavor, 80 Servings, 2 fl oz

Liquid Vitamin B-12: Make our liquid Methyl B12 supplement part of your daily vitamin regimen. Three sprays daily provide approximately 2,500 mcg of B12 as Methylcobalamin, the biologically active, coenzyme form of this essential vitamin.
Energizing Support: Known as the “energy vitamin,” this hardworking B vitamin may help support healthy energy and metabolism to keep you going strong.*
More Big Benefits: Vitamin B-12 may also help support red blood cell synthesis, nerve function, cardiovascular health and normal homocysteine levels in the blood.*
Bioavailable & Easy to Use: Our liquid B-12 is designed for optimal absorption and efficiency in the body and leaves no bitter aftertaste. Simply spray under the tongue and hold for 20 seconds before swallowing. You’ll love the great, natural berry flavor!
KAL Quality: Fast-acting liquid formula is sweetened with Stevia and packaged in amber glass to protect product freshness. Plus like all KAL supplements, it’s lab verified for the potency and purity of its ingredients and comes with a 60-day money back guarantee.

Last update on 2023-08-20 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best B12 Spray?

Do you get stressed out thinking about shopping for a great B12 Spray? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching B12 Spray, which is why we have assembled a comprehensive list of the greatest B12 Spray available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for B12 Spray that you consider buying. Your questions might include the following:

Is it worth buying an B12 Spray?
What benefits are there with buying an B12 Spray?
What factors deserve consideration when shopping for an effective B12 Spray?
Why is it crucial to invest in any B12 Spray, much less the best one?
Which B12 Spray are good in the current market?
Where can you find information like this about B12 Spray?

We’re convinced that you likely have far more questions than just these regarding B12 Spray, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for B12 Spray, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible B12 Spray. Make sure that you are only using trustworthy and credible websites and sources.

We provide an B12 Spray buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available B12 Spray currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of B12 Spray has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an B12 Spray?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your B12 Spray.
Customer Ratings: Number ratings grade B12 Spray objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their B12 Spray.
Product Quality: You don’t always get what you pay for with an B12 Spray, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an B12 Spray is should be an indication of how long it will work out for you.

We always remember that maintaining B12 Spray information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding B12 Spray is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

FAQ:

Q: What are the benefits of B12 spray?

A: The following is a summary of the key advantages of vitamin B12 sprays and drops: Direct availability of vitamin B12 Immediate absorption in the mouth Easiest form to use Less additives contained than in pills Intestinal absorption can be avoided to an extent

Q: Does B12 actually make you more energetic?

A: Vitamin B-12 has a big role in stabilizing your energy levels. It actually helps give you more energy, rather than making you tired. If you do notice feeling a little fatigued, even though you’re regularly taking a B-12 supplement, it’s likely a sign of something else that is out of the norm in your body.

Q: What happens when B12 is too high?

A: It is, however, important to note that too much B12 may cause issues in certain cases. In some people, high levels of B12 may cause gastrointestinal problems such as bloating and diarrhea. And if you have high blood pressure or poor cardiovascular health, having too much B12 may further complicate these issues.

Q: What does B12 help treat?

A: See also: Dr. Mercola Sublingual B12. Vitamin B12 is also known as cyanocobalamin. Vitamin B12 is important for growth, cell reproduction, blood formation, and protein and tissue synthesis. It is used to treat vitamin B12 deficiency in people with pernicious anemia and other conditions.