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BetterYou B12 Boost Spray (48 doses)

BetterYou B12 Boost Spray (48 doses)

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  • ✔️ Supports energy metabolism and reduces tiredness and fatigue
  • ✔️ Absorbed via buccal mucosa, bypassing gut absorption issues
  • ✔️ Suitable for vegans, vegetarians, and adults over 50
  • ✔️ Delivers 48 convenient doses per bottle at just £10.99
  • ✔️ Cyanocobalamin formula supports healthy nerve and red blood cell function

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What Is Vitamin B12 Oral Spray and How Can It Help You?

 

Vitamin B12 is one of those nutrients that quietly does a lot of heavy lifting. It plays a central role in red blood cell formation, neurological function, and DNA synthesis — yet a surprising number of people in the UK don't get enough of it. The NHS estimates that vitamin B12 deficiency affects around 6% of adults under 60, rising significantly in older age groups. If you follow a vegan or vegetarian diet, take certain medications, or have a condition affecting gut absorption, your risk is even higher. The vitamin B12 oral spray format offered by BetterYou is designed to make supplementation easier and more effective for exactly these groups.

BetterYou B12 Boost Spray delivers 48 doses per bottle at just £10.99, making it one of the more accessible options available. Rather than swallowing a tablet, you simply spray it into your mouth — a small but meaningful difference for people who struggle with pills or who have absorption issues in the gut. You can browse the full range of vitamins and supplements at Cured Pharmacy if you're looking to support your health more broadly.

 

How Does BetterYou B12 Boost Spray Work?

 

The spray works through buccal absorption — that is, the vitamin B12 is absorbed directly through the soft tissue lining of the mouth rather than passing through the stomach and small intestine. This matters because many people who are deficient in B12 lack sufficient intrinsic factor, a protein produced in the stomach that is needed for conventional oral absorption. By bypassing this pathway, the spray can deliver the nutrient more reliably.

  • Spray is applied to the inner cheek or under the tongue
  • Vitamin B12 (cyanocobalamin) is absorbed through the buccal mucosa
  • Enters the bloodstream directly, avoiding first-pass gut metabolism
  • Supports red blood cell production, nerve health, and energy metabolism

 

Who Should Consider Using BetterYou B12 Boost Spray?

 

Not everyone needs a B12 supplement, but certain groups are at noticeably higher risk of deficiency. The NHS identifies several populations who may benefit from supplementation, and an oral spray format can be particularly well-suited to those with digestive concerns.

  • Vegans and vegetarians, as B12 is found almost exclusively in animal products
  • Adults over 50, whose stomach acid production often declines with age
  • People taking metformin for type 2 diabetes, which can reduce B12 absorption
  • Those with conditions such as Crohn's disease, coeliac disease, or atrophic gastritis
  • Anyone who has had gastric surgery or takes long-term proton pump inhibitors

 

How Does BetterYou B12 Spray Compare to Standard B12 Tablets?

 

Feature BetterYou B12 Boost Spray Standard B12 Tablet
Absorption route Buccal (mouth lining) Gastrointestinal tract
Suitable for poor gut absorbers Yes Limited
Ease of use No swallowing required Must swallow tablet
Doses per pack 48 Varies (typically 30–90)

 

Is BetterYou B12 Boost Spray Suitable for Vegans and How Should It Be Stored?

 

Yes — BetterYou B12 Boost Spray is suitable for vegans and vegetarians, which is particularly relevant given that dietary B12 is found almost entirely in meat, fish, dairy, and eggs. The spray format is free from animal-derived ingredients, making it a practical choice for plant-based diets. If you're managing your health across multiple areas, it's worth exploring the vegan range at Cured Pharmacy for other suitable products.

Store the spray below 25°C, away from direct sunlight and out of reach of children. Do not freeze. Once opened, use within the period indicated on the packaging. There is no requirement to refrigerate.

This product is a food supplement. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

BetterYou B12 Boost Spray (48 doses) specifications
Treatment category Vitamin B12 supplementation
Mechanism of action Buccal absorption of cyanocobalamin into the bloodstream
Effective for Supporting energy metabolism, nerve function, red blood cell formation
Suitable for Adults; vegans; vegetarians; those with absorption difficulties
Active ingredient Cyanocobalamin (Vitamin B12)
Pack size 48 doses
UK classification Food supplement (not a licensed medicine)
Preparation Oral spray solution
Route of administration Oral (buccal)

Specifications of BetterYou B12 Boost Spray (48 doses)

 

What Is BetterYou B12 Boost Spray and What Is It Used For?

 

BetterYou B12 Boost Spray is an oral food supplement containing cyanocobalamin, a form of vitamin B12. It is used to help maintain adequate B12 levels in people who may not get enough through diet alone, or who have difficulty absorbing B12 through conventional oral routes. Vitamin B12 contributes to normal energy-yielding metabolism, the normal functioning of the nervous system, normal red blood cell formation, and the reduction of tiredness and fatigue — all recognised nutrient reference values under EU and UK food supplement regulations.

It is not a licensed medicine and is not intended to diagnose, treat, or cure any medical condition. If you suspect you have a clinical B12 deficiency — particularly pernicious anaemia — you should see your GP, as this may require prescription-strength treatment such as intramuscular injections.

 

What Do You Need to Know Before Using BetterYou B12 Boost Spray?

 

Before using this spray, consider the following contraindications and warnings:

  • Do not use if you are allergic to cyanocobalamin or any other ingredient in the formulation
  • Not recommended for children under 12 without medical advice
  • If you have been diagnosed with pernicious anaemia, consult your GP — oral supplementation alone is unlikely to be sufficient
  • Seek medical advice before use if you are pregnant or breastfeeding
  • Do not use as a substitute for a varied and balanced diet

Some medicines are known to affect vitamin B12 levels or absorption. Be aware of the following potential interactions:

  • Metformin (used for type 2 diabetes) — long-term use can reduce B12 absorption
  • Proton pump inhibitors (e.g. omeprazole, lansoprazole) — may reduce stomach acid needed for B12 release from food
  • Colchicine — may impair B12 absorption
  • H2 receptor antagonists (e.g. ranitidine, famotidine) — similar effect to PPIs

If you are taking any of the above, speak to your pharmacist or GP before starting supplementation. You might also find it helpful to explore our vitamins and supplements collection for complementary products.

 

How Should You Use BetterYou B12 Boost Spray?

 

  1. Shake the bottle gently before each use
  2. Remove the cap and point the nozzle towards the inside of your cheek or under your tongue
  3. Press the pump to release one spray
  4. Allow the liquid to absorb for a few seconds before swallowing
  5. Replace the cap after use
Indication Age Group Dose Frequency
General B12 maintenance Adults (18+) As directed on label (typically 1–4 sprays) Once daily
Dietary supplementation (vegan/vegetarian) Adults (18+) As directed on label Once daily
Children Under 12 Not recommended without medical advice

 

What Are the Possible Side Effects of BetterYou B12 Boost Spray?

 

Vitamin B12 is water-soluble, meaning excess amounts are generally excreted in urine rather than accumulating to toxic levels. Side effects at recommended supplement doses are uncommon. However, as with any product, some people may notice reactions.

Common side effects (may affect a small number of users):

  • Mild nausea, particularly if used on an empty stomach
  • Temporary tingling sensation in the mouth after spraying

Less common side effects:

  • Skin flushing or itching
  • Headache
  • Diarrhoea
  • Allergic reactions (rash, swelling, difficulty breathing) — stop use immediately and seek medical help if this occurs

If you experience any unexpected or persistent symptoms, stop using the product and consult your pharmacist or GP. For digestive concerns, you may also find our IBS and cramps section useful.

 

How Should You Store BetterYou B12 Boost Spray?

 

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and heat sources
  • Do not freeze
  • Keep out of reach and sight of children
  • Do not use after the expiry date printed on the bottle
  • Use within the period indicated on the packaging after first opening

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy BetterYou B12 Boost Spray online in the UK?

You can buy BetterYou B12 Boost Spray (48 doses) directly from Cured Pharmacy online for £10.99, with fast UK delivery. It is available without a prescription as an over-the-counter food supplement. No consultation is required for healthy adults purchasing it for general dietary support.

How does BetterYou B12 Boost Spray work in the body?

The spray delivers cyanocobalamin (vitamin B12) directly onto the inner cheek or under the tongue, where it is absorbed through the buccal mucosa into the bloodstream. This bypasses the digestive system entirely, which is particularly useful for people who lack sufficient intrinsic factor or have gut absorption difficulties. Once absorbed, B12 supports red blood cell formation, nerve function, and energy metabolism.

How do I use BetterYou B12 Boost Spray step by step?

Shake the bottle gently, remove the cap, and direct the nozzle towards the inside of your cheek or under your tongue. Press the pump to release one spray, then allow the liquid to sit for a few seconds before swallowing. Repeat for the number of sprays recommended on the product label, and replace the cap after use.

What is the best time of day to take BetterYou B12 Boost Spray?

There is no clinically mandated time, but most people find taking it in the morning as part of a daily routine works well. Vitamin B12 is water-soluble and does not typically interfere with sleep, so morning or midday use is generally preferred. Consistency matters more than the exact time — try to use it at the same point each day.

Who is eligible to use BetterYou B12 Boost Spray?

It is suitable for adults who may have low or borderline vitamin B12 levels, including vegans, vegetarians, adults over 50, and those taking medications such as metformin or proton pump inhibitors. It is not recommended for children under 12 without medical advice. If you have been diagnosed with pernicious anaemia, speak to your GP before relying on an oral spray alone.

What are the side effects of BetterYou B12 Boost Spray?

Side effects are uncommon at recommended doses because vitamin B12 is water-soluble and excess is excreted in urine. Some people may experience mild nausea, a tingling sensation in the mouth, or occasional skin flushing. Allergic reactions are rare but possible — stop use and seek medical advice immediately if you notice swelling, rash, or difficulty breathing.

What happens if I miss a dose of BetterYou B12 Boost Spray?

If you forget a dose, simply take it as soon as you remember that day. Do not double up the following day to compensate — just continue with your normal routine. Missing the occasional dose is unlikely to cause any noticeable effect, as B12 is stored in the liver for extended periods.

Is BetterYou B12 Boost Spray suitable for vegans?

Yes — BetterYou B12 Boost Spray is suitable for vegans and vegetarians, and is free from animal-derived ingredients. This makes it particularly relevant for plant-based diets, where B12 is almost entirely absent from food sources. You can explore more vegan-friendly health products in our vegan collection at Cured Pharmacy.

How long can you use BetterYou B12 Boost Spray for?

BetterYou B12 Boost Spray can be used as a long-term daily supplement, particularly for those with ongoing dietary restrictions or chronic absorption issues. There is no standard upper limit for duration in healthy adults using it at recommended doses. If you are using it to address a diagnosed deficiency, follow your GP's guidance on how long to continue.

Can I take BetterYou B12 Boost Spray with other vitamins or supplements?

Generally, yes — vitamin B12 is commonly taken alongside other B vitamins, vitamin D, and iron without known interactions. However, if you are taking multiple supplements, it is worth checking with your pharmacist to avoid unnecessary duplication. You can browse the full vitamins and supplements range at Cured Pharmacy for complementary options.

Does BetterYou B12 Boost Spray interact with any medicines?

Some medicines can reduce B12 absorption, including metformin, proton pump inhibitors (such as omeprazole), H2 receptor antagonists, and colchicine. The spray's buccal absorption route may partially mitigate gut-related interactions, but you should still inform your pharmacist or GP if you are taking any of these medicines. Do not use this spray as a replacement for medically prescribed B12 treatment.

What are the alternatives to BetterYou B12 Boost Spray?

Alternatives include standard cyanocobalamin or hydroxocobalamin tablets, sublingual lozenges, and — for clinical deficiency — intramuscular injections prescribed by a GP. The oral spray format is particularly suited to those who dislike tablets or have absorption difficulties. If you are unsure which format is right for you, speak to your pharmacist for personalised advice.

How quickly will I notice results from BetterYou B12 Boost Spray?

This varies between individuals. Some people notice improvements in energy and reduced fatigue within a few weeks of consistent use, particularly if they were previously deficient. However, food supplements are not medicines and results are not guaranteed — if you have a confirmed clinical deficiency, medical treatment may be needed for faster correction.

What does the latest research say about oral B12 sprays?

Research into buccal and sublingual B12 delivery suggests it can be an effective alternative to oral tablets for people with absorption difficulties, though intramuscular injection remains the gold standard for treating severe deficiency. Studies indicate that buccal absorption can raise serum B12 levels meaningfully in those with mild to moderate insufficiency. Always discuss your specific situation with a healthcare professional before changing your supplementation approach.

Is BetterYou B12 Boost Spray safe during pregnancy?

Vitamin B12 is an essential nutrient during pregnancy, and deficiency can have serious consequences for both mother and baby. However, you should always consult your GP or midwife before starting any new supplement during pregnancy or breastfeeding. They can advise on the appropriate dose and whether this product is suitable alongside your existing antenatal care.

How Should You Use BetterYou B12 Boost Spray?

Using BetterYou B12 Boost Spray correctly ensures you get the most from each dose. The spray is designed for buccal delivery, meaning it works best when applied directly to the soft tissue inside your mouth rather than simply swallowed immediately.

Avoid eating or drinking immediately before or after use if possible, as this may dilute the formula before it has fully absorbed.

What Is the Correct Dose of BetterYou B12 Boost Spray?

The dose will depend on your individual needs and the specific product instructions. Always follow the label guidance and do not exceed the recommended daily intake without medical advice. The table below provides a general overview.

If you are using this spray to address a confirmed B12 deficiency diagnosed by your GP, follow their specific guidance on dosing — they may recommend a different approach entirely, such as prescription-strength supplementation or injections.

When Is the Best Time to Use BetterYou B12 Boost Spray?

There is no strict clinical requirement for a specific time of day. Most people find that incorporating it into their morning routine — alongside breakfast or other daily supplements — helps with consistency. Vitamin B12 is water-soluble and is not known to disrupt sleep, so morning or midday use is generally preferred. The key is to use it at the same time each day to build a reliable habit.

If you are also taking medications that affect B12 absorption, such as metformin or a proton pump inhibitor, speak to your pharmacist about whether timing your spray separately from those medicines could be beneficial.

How Long Can You Use BetterYou B12 Boost Spray For?

For most adults using it as a dietary supplement — particularly vegans, vegetarians, or older adults — long-term daily use is appropriate and safe. Vitamin B12 is water-soluble, so excess is excreted rather than stored to harmful levels at typical supplement doses. If you are using the spray to correct a diagnosed deficiency, your GP will advise on how long to continue and when to retest your B12 levels.

Each bottle provides 48 doses, which equates to approximately six to seven weeks of daily use at one spray per day. Reassess your needs periodically, especially if your diet or health circumstances change.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of BetterYou B12 Boost Spray?

Vitamin B12 supplements are generally very well tolerated, and side effects at recommended doses are uncommon. Because B12 is water-soluble, any excess your body does not need is excreted in urine rather than accumulating to harmful levels. That said, a small number of people may notice mild reactions, particularly when first starting the spray.

  • Mild nausea, especially if used on an empty stomach
  • Temporary tingling or mild irritation in the mouth at the spray site
  • A slightly metallic or sweet taste after spraying

What Are the Less Common Side Effects of BetterYou B12 Boost Spray?

Less commonly, some individuals may experience reactions that go beyond mild oral sensations. These are not typical but are worth being aware of before you start using the product.

  • Skin flushing or redness
  • Itching or mild skin rash
  • Headache
  • Loose stools or diarrhoea
  • Dizziness

These effects are generally mild and tend to resolve on their own. If they persist beyond a few days, stop using the spray and consult your pharmacist.

What Are the Serious Side Effects of BetterYou B12 Boost Spray?

Serious side effects from vitamin B12 supplementation at over-the-counter doses are rare. However, allergic reactions — though uncommon — can occur. Signs of a serious allergic reaction include swelling of the face, lips, tongue, or throat, difficulty breathing, a widespread rash, or a sudden drop in blood pressure. If you experience any of these symptoms, stop using the product immediately and call 999 or go to your nearest A&E department.

People with Leber's disease (a hereditary optic nerve condition) should not use cyanocobalamin-containing products without medical supervision, as it may worsen optic atrophy.

What Should You Do If You Experience Side Effects?

For mild side effects such as nausea or a tingling sensation, try using the spray after a light meal or reducing the number of sprays temporarily. Most minor reactions settle within a few days as your body adjusts. Keep a note of any symptoms and when they occur — this information will be useful if you need to speak to a healthcare professional.

You can report suspected side effects from food supplements to the Food Standards Agency (FSA) or speak to your GP or pharmacist for personalised advice.

Can BetterYou B12 Boost Spray Interact With Other Medicines?

Yes — certain medicines are known to reduce vitamin B12 absorption or interfere with its metabolism. If you are taking any of the following, speak to your pharmacist or GP before using this spray:

  • Metformin (for type 2 diabetes) — long-term use is associated with reduced B12 levels
  • Proton pump inhibitors (e.g. omeprazole, lansoprazole) — reduce stomach acid, impairing B12 release from food
  • H2 receptor antagonists (e.g. famotidine) — similar mechanism to PPIs
  • Colchicine (for gout) — may impair B12 absorption in the gut
  • Chloramphenicol — may reduce the haematological response to B12

The buccal absorption route of this spray may partially reduce the impact of gut-related interactions, but it does not eliminate them entirely. Always disclose all supplements to your prescribing clinician.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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