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Vitamin B12 Deficiency

Needle-Free Treatment for B12 Deficiency & Pernicious Anaemia

Can vitamin B12 injections be administered without needles?

Needleless injecting of Vitamin B12 coenzyme (methylcobalamin) or methyl-B12, is a very popular use for the Comfort-in™ jet injector system, particularly because they reduce pain and anxiety.

The Comfort-in™ needle-free injection system is an excellent alternative to needle-based syringes and is an effective and convenient method for B12 needle-free delivery.

Is intramuscular or subcutaneous delivery relevant for B12?

Parenteral administration of vitamin B-12 via injection has been standard protocol for decades, according to the Centers for Disease Control and Prevention. Both types of injections have few associated side effects and constitute very effective treatment. Patients report less burning with a subcutaneous administration, which gives it a slight advantage over an intramuscular injection, according to the CDC.

from SFGATE

People with dietary restrictions, such as vegans or vegetarians, use methyl B12 injections to supplement diets lacking in sufficient vitamin B12.

Another common use for methyl B12 is in children with autism spectrum disorders and dyslexia and often involves injecting methyl-B12 into subcutaneous fat, allowing for slow and sustained release from the tissue.

The Comfort-in™ jet injection system allows injection of methyl-B12 without needles, making 'injection time' a much simpler and relaxed experience for both parent and child.

Who may be prescribed vitamin B12 injections?

  • Inadequate dietary intake of B12
  • Loss of gastric parietal cells in chronic atrophic gastritis
  • Structural damage or surgical resection of the small intestine or stomach
  • Long-term use of acid regulating medication
  • Alcoholism
  • Gastric banding surgery
  • Celiac's disease
  • Pernicious anaemia
  • Crohn's disease

Until now, injection of methyl-B12 has required a needle. However, needles and syringes can be a cause of concern for many people, especially if needing to be self-administered or administered to a loved one.

Jet injection is a virtually painless and comfortable method of injecting methyl-B12 without needles and can be used with adults, children and pets.

Client Testimonial

"A Game Changer in Comfort and Efficiency. I recently had the pleasure of experiencing the cutting-edge technology of the Needless Injector, and I must say, it's nothing short of revolutionary. This device has completely transformed my perception of injections, making the process safe and remarkably efficient. It's a game changer for anyone, especially those with needle phobia or sensitive skin. The Customer Service team is outstanding - truly superb. They answered all my questions promptly and efficiently. Overall, my experience with the Needless Injector has been exceptionally positive. I highly recommend this innovative device."

— Steve Novick

Can Vitamin B12 be administered needle-free?

Comfort-in can support some B12 injection routines when the route, dose, and device choice match clinician or product guidance. Suitability still depends on the prescribed medication, delivery route, and clinical context.

What route is relevant for B12?

B12 routines may use intramuscular or subcutaneous delivery depending on the prescription and clinical context. Match the device setup to the instructions supplied by the clinician or pharmacist.

Routine backdrop

Your New Routine

A medical-grade procedure in 4 simple steps.

01

Fill

Draw your TRT or Trimix into the nozzle using the included adapter.

02

Charge

Use the pressure lever to engage the spring and prime the Comfort-in™ injector.

03

Position

Place the nozzle against thigh, glute, or abdomen with a firm seal.

04

Inject

Press the trigger. Medication disperses through the skin in under 0.3 seconds.

Comfort-in IM Kit

Comfort-in™

Intramuscular Injector Kit

Everything you need in one kit

  • Comfort-in™ Powerful IM injector kit
  • Luer adapter for vial decanting
  • Pressure lever / winder
  • Needle-free delivery with no loose sharps to dispose of after use
  • Designed for clinician-prescribed TRT, Trimix, and hormone routines
  • Ships from Australia with secure checkout and international delivery support

Updating price...

Your New Routine

A medical-grade procedure in 4 simple steps.

01

Fill

Draw your TRT or Trimix into the nozzle using the included adapter.

02

Charge

Use the pressure lever to engage the spring and prime the Comfort-in™ injector.

03

Position

Place the nozzle against thigh, glute, or abdomen with a firm seal.

04

Inject

Press the trigger. Medication disperses through the skin in under 0.3 seconds.

Starter pack

Comfort-in™ IM Kit

The Intramuscular kit

The IM-labelled injector is certified for intramuscular delivery and packaged with the adapter, nozzles and guide needed for clinician-directed TRT, Trimix and hormone routines.

Certified Comfort-in intramuscular injector

Certified Comfort-in intramuscular injector

Certified IM injector

Intramuscular (IM) injector engineered for consistent depth and control.

Universal Luer adapter

Universal Luer adapter

Luer adapter

Universal Luer adapter included for vial access and compatibility.

Sterile nozzles and syringes

Sterile nozzles and syringes

Nozzles / syringes

Individually packed sterile nozzles for optimal flow and hygiene.

Manual and setup guide

Manual and setup guide

Manual & guide

Step-by-step instructions for setup, use, and care.

Secure checkout
Ships worldwide
Add to Cart & Checkout

Clinically proven

Comfort-in™ uses high-velocity jet technology to deliver medication through a micro-orifice—minimising tissue trauma, eliminating sharps disposal, and reducing anxiety for frequent injectors.

  • Suitable for TRT, Trimix, and intramuscular hormone therapy.
  • Reduces scarring and improves absorption consistency.
  • Trusted globally for medical and personal use.
Comfort-in study

Trusted by Thousands

Real experiences from real people who've made the switch to needle-free injections

5.0from 100+ reviews

"The Comfort-In Intramuscular Injector has completely redefined my experience with medication delivery. What used to be a daunting and uncomfortable process is now effortless, efficient, and virtually painless. The device is engineered with impressive precision—its mechanism ensures consistent, reliable dosage delivery without the need for traditional needles."

Victor A.
Intramuscular Injections
2 months ago
Posted on Google

"Being sick my entire childhood I have developed a strong needlephobia and thought the benefits of TRT and peptides will never be available to me. After discovering Comfort-In over social media, I reached out and all of my questions and concerns were swiftly answered by email. 1 week later I had the SQ started kit at home and was absolutely blown away by the medical grade build quality."

Jakub D.
TRT & Peptides
2 months ago
Posted on Google

"I switched to Comfort-In needle-free injections on a friend's recommendation and couldn't be happier with the change. From my very first enquiry, the team was professional, responsive, and genuinely helpful in answering all of my questions. The device itself has been a game-changer, and the support I've received hasn't stopped after the initial purchase."

Scott W.
Needle-Free Injections
2 months ago
Posted on Google

"Happy with product. Using for TRT and Team is very responsive when you need help."

Ika U.
TRT
1 month ago
Posted on Google

"The team worked with me and communicated the whole way through. They went out of their way to make sure I got what I needed."

Mack B.
Customer Support
2 months ago
Posted on Google

Comfort-in Knowledge

TRT, peptides, and needle-free best practices

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FAQ

Answers to common questions about Comfort-in™

Is it suitable for TRT and Trimix?

The Powerful IM kit is designed for intramuscular delivery routines, including TRT and Trimix where your clinician has prescribed the medication and route. Always follow your prescriber's dose and site guidance.

Does it hurt?

Most customers describe a short pressure snap rather than a needle prick. The micro-orifice stream delivers quickly, and the video at the top of this page shows the kit in use.

What about oily TRT medications?

For thicker oil-based fluids, many users prefer smaller micro-doses and high-flow nozzles. The bundle includes the IM kit, extra nozzles, and a free A310L pulse oximeter gift for training-focused customers.

How do I buy?

Click any Buy button to add the kit directly to cart on injectneedlefree.com. You'll be taken straight to secure checkout.

Skip needles on your next dose

Add the Comfort-in™ IM Kit to your cart and check out instantly on injectneedlefree.com.

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Vitamin B12 Deficiency - Needle Free Injections | Comfort-in | Comfort-in™ Needle-Free IM Kit