Source Naturals Advanced B-12 Complex – 5 mg, 60 Lozenges

Key Benefits of Vitamin B12

Discover Source Naturals Advanced — Vitamin B12 contributes to normal energy-yielding metabolism, normal functioning of the nervous system, normal red blood cell formation, and normal homocysteine metabolism. The three active forms in this complex provide comprehensive support: methylcobalamin aids methylation, adenosylcobalamin fuels cellular energy, and hydroxocobalamin assists in transport and detoxification. Together, they help maintain steady energy levels and cognitive function.

Ingredients and Their Roles

This product contains three distinct forms of vitamin B12:

• Methylcobalamin – the active, co-enzymated form essential for methylation and nervous system health.
• Adenosylcobalamin (Dibencozide) – the primary B12 form in mitochondria, supporting ATP production and cellular energy.
• Hydroxocobalamin – a natural transportable form that contributes to nitric oxide regulation and toxin neutralisation. It serves as a precursor to the other active forms.

Each lozenge delivers 5 mg (5000 mcg) of B12 – significantly above the daily requirement – making it ideal for those with absorption concerns or increased needs.

How to Use the Lozenge

For optimal results, allow one lozenge to dissolve slowly in your mouth, ideally on an empty stomach. Sublingual absorption bypasses the digestive system, delivering B12 directly into the bloodstream. This method is particularly beneficial for those with low stomach acid or gastrointestinal conditions. Daily use ensures consistent support.

Selecting the Right B12 Supplement

When choosing a B12 supplement, consider the form. Cyanocobalamin, a synthetic form, requires conversion to active forms and may be less effective for individuals with methylation issues. Active forms such as methylcobalamin and adenosylcobalamin offer superior bioavailability. This formulation also includes hydroxocobalamin, which has a longer half-life. The lozenge format overcomes digestive absorption problems, making it excellent for vegetarians, vegans, and older adults. For those with allergies, this product contains no yeast, dairy, egg, gluten, soy, or wheat, and no artificial additives.

Understanding the B-Complex Family

The B-complex comprises eight essential B vitamins that work together to support overall health. While a complete B-complex includes all eight, many individuals opt for targeted supplementation of individual B vitamins. Source Naturals Advanced B-12 Complex is a specialised formula providing 5 mg of vitamin B12 in three bioavailable forms: methylcobalamin, adenosylcobalamin, and hydroxocobalamin. The lozenge format allows for efficient absorption through the oral mucosa.

Possible Side Effects and Interactions

Vitamin B12 is generally well tolerated, even at high doses. Rare side effects may include mild nausea, headache, or dizziness. B12 can interact with certain medications, including metformin, proton pump inhibitors, and some antibiotics. If you have a medical condition or are taking prescription drugs, consult your health care provider before use. Always read the label and follow directions for use.

Frequently Asked Questions

What is the difference between methylcobalamin and cyanocobalamin?

Methylcobalamin is an active co-enzymated form that the body can use immediately, whilst cyanocobalamin is synthetic and requires conversion in the liver. Active forms are generally preferred for individuals with MTHFR gene variants or absorption issues.

Can I take this on an empty stomach?

Yes, this lozenge is designed for sublingual absorption and can be taken without food. In fact, taking it on an empty stomach may enhance absorption.

Is this suitable for vegans?

Yes, Source Naturals Advanced B-12 Complex is suitable for vegetarians and vegans. The B12 is derived from fermentation, not animal sources.

Why does this B12 contain three different forms?

Each form serves a unique biological role. Methylcobalamin supports methylation, adenosylcobalamin fuels cellular energy, and hydroxocobalamin aids transport and detoxification. This combination ensures comprehensive B12 activity.

The claims made about vitamin B12 are authorised by the European Food Safety Authority (EFSA). Always read the label and follow directions for use.