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L-Methylfolate 15mg with Methyl B12 Cofactor – High Potency Liquid Sublingual Active 5-MTHF – Organic Berry Flavour – Bioactive Forms Vitamin B9 and B12 (30 ml)

L-Methylfolate 15mg with Methyl B12 Cofactor – High Potency Liquid Sublingual Active 5-MTHF – Organic Berry Flavour – Bioactive Forms Vitamin B9 and B12 (30 ml)

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L-Methylfolate 15mg with Methyl B12 Cofactor – High Potency Liquid Sublingual Active 5-MTHF – Organic Berry Flavour – Bioactive Forms Vitamin B9 and B12 (30 ml)

Regular price £35.14
Sale price £35.14 Regular price
Save % Sold out
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Key Benefits of This High-Strength Methylfolate and Methyl B12 Formula

This unique formula combines L-methylfolate with methylcobalamin (vitamin B12), two nutrients that work synergistically in methylation pathways. L-methylfolate and methylcobalamin contribute to normal homocysteine metabolism, supporting cardiovascular health. Vitamin B12 also contributes to normal energy metabolism and the reduction of tiredness and fatigue. Additionally, folate contributes to normal psychological function and normal function of the nervous system. The combination of these bioactive forms in a liquid sublingual delivery optimises absorption and efficacy.

How to Uses: Dosage and Sublingual Administration

This liquid supplement is designed for sublingual administration. Place the recommended number of drops (as indicated on the label) under the tongue and hold for 30 seconds before swallowing. Sublingual absorption allows the active compounds to enter the bloodstream directly, bypassing the digestive tract for prompt uptake. Each serving provides 15 mg of L-methylfolate and a complementary amount of methylcobalamin. Do not exceed the recommended dosage unless directed by a health care professional. Shake well before each uses.

What Is L-Methylfolate and Why Does It Matter?

L-methylfolate, also known as 5-MTHF, is the biologically active form of folate (vitamin B9). Unlike folic acid, which must be converted by the MTHFR enzyme, L-methylfolate is immediately available for uses in vital processes such as DNA synthesis, neurotransmitter production and homocysteine metabolism. Many people have genetic variations in the MTHFR gene that impair conversion of folic acid, making L-methylfolate a preferred option for supporting methylation and overall health. This product delivers 15 mg of L-methylfolate (as calcium salt) per serving, offering a high-strength dose for those requiring robust support.

Who Should Consider a Bioactive Folate Supplement?

This high-strength formula is particularly suited for individuals with MTHFR gene variants who cannot efficiently convert folic acid. It may also be beneficial for those seeking to support psychological function, cognitive function, and energy levels. Women planning pregnancy or during pregnancy may find L-methylfolate useful, as adequate folate intake contributes to normal foetal development. Individuals with elevated homocysteine levels, vegans or vegetarians who may lack B12, and older adults concerned with methylation and cognitive health may also consider this supplement. As with any high-strength product, it is advisable to consult a health care professional before uses.

L-Methylfolate vs. Folic Acid: What's the Difference?

Folic acid is a synthetic form of folate found in many supplements and fortified foods. It requires conversion by the enzyme MTHFR into active 5-MTHF to be used by the body. For individuals with MTHFR mutations, this conversion is inefficient, potentially leading to unmet needs. L-methylfolate bypasses this step entirely, providing the active coenzyme directly. This product also includes methylcobalamin, the active form of vitamin B12, which works alongside methylfolate in methylation reactions. Together, they contribute to normal homocysteine metabolism and neurotransmitter synthesis more effectively than isolated forms.

What to Look for in a Quality Methylfolate Supplement

When choosing a methylfolate supplement, consider the form and potency. Look for L-methylfolate as calcium salt (5-MTHF) rather than folic acid or other folate forms. Third-party testing for purity and potency ensures you receive what is stated on the label. A liquid sublingual formulation, like this one, offers enhanced absorption. Also check added ingredients: this product uses organic berry flavour and avoids artificial additives. Ensure the supplement is free from common allergens if necessary. Triquetra Health focuses on bioactive, high-quality ingredients that align with these criteria.

Potential Side Effects and Important Precautions

L-methylfolate and methylcobalamin are generally well tolerated. However, high doses of 15 mg may cause mild side effects in some individuals, including insomnia, anxiety or digestive upset. Because this product provides a high-strength dose, it is recommended for uses under medical supervision, especially if you are pregnant, nursing, or taking other medications. Methylfolate can mask a vitamin B12 deficiency (whilst this product contains B12), so appropriate testing is advised. No Tolerable Upper Intake Level has been established for L-methylfolate specifically; caution is warranted with high doses.

Frequently Asked Questions

Can I take this alongside other supplements? This formula can be combined with most supplements, but consult your GP or health care provider to avoid interactions, especially with medications that affect methylation or homocysteine levels.

How long does it take to notice effects? Individual responses vary. Some users report improved energy and psychological wellbeing within a few days, while others may take longer. Consistency is key.

Is this product vegan-friendly? Yes, methylcobalamin is derived from microbial fermentation and is vegan-friendly. The liquid base is also plant-based.

Does it contain any allergens? This product is free from common allergens such as gluten, dairy and soya. Always check the label for specific allergen information.

What should I do if I miss a dose? Simply take your next dose as scheduled. Do not double the dose to make up for a missed one.


These statements have not been evaluated by the European Food Safety Authority (EFSA). This product is not intended to diagnose, treat, or prevent any disease. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

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UK Vitality Vitamins offers straightforward post-purchase support with a clear returns process. Please check the store returns policy before sending an item back, as final eligibility may depend on product condition, packaging integrity and whether the return request is started within the stated return window.

How to choose

Use the product description, ingredient list, serving information and available variants to compare supplement options. Always check the full ingredient list, directions for use and any allergen information on the product packaging before taking any food supplement.

Ingredients and important information

Ingredient lists and formulations may vary by batch or supplier. Always check the product packaging for the most up-to-date information. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended daily intake. If you are pregnant, nursing, taking medication or have a medical condition, consult your healthcare professional before use.

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Supplement guide

L-Methylfolate 15mg with Methyl B12 Cofactor – High Potency Liquid Sublingual Active 5-MTHF – Organic Berry Flavour – Bioactive Forms Vitamin B9 and B12 (30 ml) at UK Vitality Vitamins

Key Benefits of This High-Strength Methylfolate and Methyl B12 FormulaThis unique formula combines L-methylfolate with methylcobalamin (vitamin B12), two nutrients that work synergistically in methylation pathways. L-...

Category Vitamin B Supplements
Delivery area Worldwide
Checkout Secure checkout
Brand Triquetra Health
Price £35.14
Availability In stock
5-MTHFactive folatecognitive functionenergygluten-freehigh potencyliquid supplementmethyl B12methylationmethylfolate

How to choose if this supplement fits your routine

Read the ingredient list, check the serving size and directions for use. Consider the supplement form (tablet, capsule, liquid) and whether it suits your dietary requirements. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

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Questions about L-Methylfolate 15mg with Methyl B12 Cofactor – High Potency Liquid Sublingual Active 5-MTHF – Organic Berry Flavour – Bioactive Forms Vitamin B9 and B12 (30 ml)

Is L-Methylfolate 15mg with Methyl B12 Cofactor – High Potency Liquid Sublingual Active 5-MTHF – Organic Berry Flavour – Bioactive Forms Vitamin B9 and B12 (30 ml) available with worldwide delivery?

Yes. This product is currently available on UK Vitality Vitamins with free worldwide delivery.

How should I compare this with similar supplements?

Compare the active ingredients, serving size, number of servings per container, supplement form, brand reputation and price per serving. Check allergen information if relevant to your dietary needs.

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