Folate (Folic Acid)


400µg bioactive folic acid in the form of pure L-methylfolate (Quatrefolic®). Premium folate with a purity of 99.9%. Vegan, non-GMO, laboratory tested, no additives. 2x120 capsules
  • Patented premium active ingredient Quatrefolic®
  • Active folate as L-methylfolate (L-5-MTHF) bonded to glucosamine
  • 400µg folate per capsule
  • Folate supports homocysteine metabolism, mental function, immune system, reduction of tiredness/fatigue and cell division
  • Folate supports the growth of tissue during pregnancy, amino acid synthesis and blood formation
  • High-quality natural filler: fibre-rich acacia fibre from cultivation without pesticides
Customize Folate (Folic Acid)<br>Quatrefolic®<br>400<span class="protect-case">µg</span>
2 x Folate (Folic Acid) Quatrefolic® 400µg   + €0.00

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€18.80 €19.80

Delivery : 1–3 business days

Incl. VAT, excl. Shipping

€324.14 / 1kg

Premium Bioactive Ingredients

  • MH3A® formula: bioactive vitamin B12 in the form of methylcobalamine, hydroxocobalamin, and adenosylcobalamin (MHA)
  • All 3 natural forms of vitamin B12
  • 2 active coenzyme forms with high bioavailability
  • 5 premium active ingredients produced in the EU
  • Folate Complex Ultra: 3 premium folate ingredients
  • 2 patented L-methylfolate (L-5-MTHF) ingredients: Quatrefolic® + Magnafolate® Pro
  • Folate in the form of L-5-MTHF: active coenzyme form with the highest bioavailability
  • Full-spectrum of natural folate from lemon peel
  • Ideal ratio of vitamin B12 to folate
  • Highly effective supply of methylfolate
  • Lozenges: ideal for sublingual administration (direct absorption through the mucous membrane of the mouth)
  • Fast and direct absorption into the blood stream, circumventing absorption difficulties in the intestines
  • High-dose: 1000µg B12 + 400µg folate per lozenge
  • Natural lozenges made from prebiotic guar gum powder (non-GMO)

How are we different?

Not all forms of vitamin B12 have the same level of efficiency. Common synthetically produced forms of folate and vitamin B12 must first be converted within the body to bioactive forms before they can be used. Sunday Natural Vitamin B12 MH3A® plus Folate Complex Ultra supplies for both vitamins the full range of bioactive and natural forms.

Generic combination supplements of B12 and folate typically only supply 1 ingredient per vitamin, but our bodies are accustomed to many different active forms. Each form has its own effects and uses different metabolic pathways within the body. Correspondingly, bodies respond individually to these forms and may absorb certain B12 or folate forms better than others. For this reason and to optimise the absorption of both vitamins, we combine 2 high-quality active complexes that cover all active and natural forms of B12 and folate.

As a pioneer in B12 products, our innovative Vitamin B12 MH3A® formula supplies B12 in the same form as it occurs in natural foods; as a combination of all three natural and bioactive B12 compounds. These three MHA (methylcobalamine, hydroxocobalamin, and adenosylcobalamin) forms each fulfil unique functions in the body and have different effect profiles. Our MH3A® formula contains all three in a balanced ratio and thus delivers an ideal and well-rounded supply of vitamin B12.

We combine 3 premium folates in our unique Folate Complex Ultra. 2 bioactive, patented L-methylfolates: the glucosamine salt Quatrefolic® as well as the highly bioavailable calcium salt Magnafolate® Pro. Both contain 99.9% pure L-methylfolate, and the contained L-5-MTHF can be quickly and effectively absorbed via different metabolic pathways. The third ingredient, lemon peel extract, provides a full spectrum of folate.

The advantage of lozenges is that the vitamin B12 can be absorbed directly through the mucous membrane of the mouth. As a result, potential digestive difficulties in the intestines can be avoided and the bioavailability of the B12 is increased. Through this method, the B12 enters the bloodstream directly and does not need to pass through the intestines or liver.

Our lozenges contain guar gum powder, with no artificial colours or flavours, sweeteners, animal products such as gelatine, or additives such as magnesium stearate.


  • Premium active ingredients in their purest form
  • Sourced directly from the world’s best producers
  • Our select raw materials are the basis of all our formulations
  • Complete avoidance of all unnecessary additives and adjuvants
  • Exclusive use of valuable natural ingredients for additives
  • We voluntarily declare all ingredients
  • All extractions performed without the use of chemical solvents
  • Custom production when necessary, in order to achieve the highest possible level of purity
  • Independent laboratory testing available on product pages
  • Raw materials sourced only from premium suppliers who are committed to fair working conditions
  • Amber glass and compostable pouches used for packaging
  • Vegan capsule shells, free from PEG and carrageenans
  • Packaged in the EU according to HACCP, GMP and ISO 22000:2018 standards
  • Stored in non-toxic containers
  • Shipped in mineral oil-free boxes
  • All products guaranteed 100% free from magnesium stearate, silicon dioxide, nanoparticles (no legal opportunism), genetic engineering, artificial colours and flavours, titanium dioxide and added sugar & sweeteners



Technically speaking, folate does not occur naturally. The folate used in many nutritional supplements is an artificial, synthetic agent which cannot be found in nature or directly utilised by the body.

Synthetic folate must be first converted into active folate by the body before taking effect. Folate conversion can be difficult for individuals with inherited metabolic disorders, because it requires the use of various cofactors and enzymes.

The optimal, biologically active form of folate is L-methylfolate (more specifically L-5-methyltetrahydrofolate or L-5-MTHF). L-methylfolate is an important methyl donor and an essential part of the methylation cycle, which has a significant impact on important processes such as DNA, amino acid, hormone, and neurotransmitter synthesis.

The geometric variant R-methylfolate, which exists along with L-methylfolate, cannot be utilised by the body. Many active ingredients contain a combination of these two forms as they appear together in most production processes. Common forms of methylfolate can contain up to 50% of these ineffective variants.


As a premium ingredient with 99.9% bioactive L-methylfolate guaranteed, Quatrefolic® is a patented product in which methyfolate is bonded to glucosamine to improve stability and to ensure optimal efficiency and shelf life. Glucosamine is a valuable and natural component of many bodily tissues and thus is of added benefit to the product. Quatrefolic® is characterised by its unrivalled bioavailability and can be directly utilised by the body. Its extreme purity,, high stability, and excellent bioavailability make Quatrefolic® one of the most effective forms of L-methylfolate.

Nutritious Filler

Instead of using cellulose, we use fibre-rich sprouted buckwheat powder as a nutritious filler for this product.

Quality and Purity

The product was produced according to the highest quality and purity standards in the EU. It is gluten- and lactose-free, non-GMO, and vegan. The only additive is guar gum powder.



Take 1 capsule (400µg folate) daily with 200ml water 1 hour before a meal.

Food Supplement

Do not exceed the recommended dose. Food supplements cannot replace a balanced and varied diet. Keep out of reach of children.


Folate is not recommended for highly sensitive individuals. If you suffer from pernicious anaemia, do not take folate in isolation, but rather in combination with vitamin B12.


Amber glass jar to protect against light and oxidation (free from plasticisers and BPA)


Store in a cool, dry place away from direct sunlight and heat.


Ingredients: L-Methylfolate (in the form of Quatrefolic®), Acacia Fibre.
Capsule shells: Hydroxypropyl Methylcellulose.
Contains: 120 capsules

Ingredients/Capsule % NRV*
Folic Acid (Quatrefolic®) 400µg 200%

* Nutrient Reference Value

Per capsule: 400µg folate
Per jar: 48,000µg folate

Product Details

German Pharmaceutical Number (PZN) 17273736
Origin Quatrefolic®: High value raw material from a certified manufacturer in Europe.
Production In-house production in Europe, bottling and encapsulation in the EU according to HACCP, GMP and ISO 22000:2018 standards
Finished products packaged in amber glass jars and stored in non-toxic containers
Shipping in mineral oil-free boxes
Capsules Plant-based cellulose (HPMC). Vegan
Premium HPMC quality: Free from controversial additives such as carrageenans and PEG
Packaging Amber glass jar to protect against light and oxidation (free from plasticisers and BPA)
To Reuse Remove product label by soaking the jar in warm water for 5 minutes. Glue residue can be removed with dish soap

Laboratory Tests

The purity of our formulas is important to us. This is why we have both our raw ingredients as well as our finished products extensively tested by independent laboratories to confirm purity and active ingredient content. Here, we have provided the results of some of the tests carried out on this product.

Sunday Natural

Our Philosophy

For thousands of years, cultures all over the world have been using medicinal plants and nutritious foods to naturally foster and maintain vitality and good health.

With our products, we try to emulate this ancient wisdom as much as possible.

Consequently, our philosophy is simple: everything we do meets the highest standards of quality and purity; our focus is on organic and natural ingredients.

We follow this philosophy with meticulous care on all levels and down to every last detail.

Learn more.

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