300mg Capsules


High-purity choline as bioavailable alpha-GPC in purest pharmaceutical quality. 300 mg alpha GPC per capsule. Highest purity with at least 98%. Without additives, without genetic engineering, in PEG- and carrageenan-free capsule shell. Vegan. 2x90 capsules
  • Bioactive choline in the form of alpha-GPC
  • Bioavailable choline source as a precursor of acetyl choline
  • 300mg alpha-GPC per capsule, of which approx. 40% pure choline
  • To support liver, fat and homocysteine metabolism
  • Important cofactor of B vitamins (previously vitamin B4)
  • Minimum 98% purity (up to 102%)
  • No solvent residues
  • No additives
  • 100% vegan
Customize Alpha-GPC<br>300<span class="protect-case">mg</span> Capsules
2 x Alpha-GPC 300mg Capsules   + €0.00

* Required Fields

€32.11 €33.80

2x90 capsules

Delivery : 1–3 business days

Incl. VAT, excl. Shipping

€37.08 / 100g

Premium Bioactive Ingredients

  • Bioactive choline in the form of alpha-GPC
  • High bioavailability achieved via passage through the blood-brain barrier
  • 300mg alpha-GPC per capsule
  • Of which 40% pure choline
  • No solvent residues
  • Minimum 98% purity
  • 100% vegan
  • Vegan HPMC capsules made from plant-based cellulose sourced from Western European and North American conifers
  • 100% disclosure: all ingredients listed on the label

How are we different?

Alpha-GPC (L-α-glycerylphosphorylcholine) with 40% pure choline is a choline form that occurs naturally in the brain and liver. It serves as a precursor to acetylcholine and proves to be an excellent bioavailable source of choline as it crosses the blood-brain barrier to enter the brain directly. Our Alpha-GPC is pharmaceutical grade and is 98% ultra-pure L-α-glycerylphosphorylcholine and 2% water.

For the capsule shells we use custom-made HPMC capsules that, unlike most other HPMC and pullulan capsules on the market, are 100% free from controversial additives such as carrageenans and PEG. We then package this product in environmentally friendly amber glass.


  • 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


Choline was long counted among the B vitamins as B4. Today, it is considered a semi-essential vitaminoid, since the body can cover part of the requirement through self-synthesis. However, it is not known by scientists if this self-synthesis is really sufficient.

Choline plays an important role in a number of bodily functions. In the fat metabolism of the liver, it supports its enzyme system and is an important component of bile secretion. Choline furthermore has an important transport function in fat metabolism: as a component of VLDL (Very Low Density Lipoproteins), it transports fat and cholesterol from the liver to other bodily tissues that need these compounds. Choline also plays a role as a methyl group donor. Just like betaine, vitamin-B12, folate and S-adenosylmethionine, it helps to regulate homocysteine levels.

Furthermore, choline is involved in production of various neurotransmitters (e.g. acetyl choline) and is one of the main components of cell membranes and myelin sheaths of nerve cells (e.g. phosphatidylcholine).

Health Benefits of Choline (According to EFSA)

  • Choline contributes to normal homocysteine metabolism
  • Choline contributes to normal lipid metabolism
  • Choline contributes to maintenance of normal liver function


Recommended Dosage

Take 1 capsule daily with 200ml water before meals.

Food Supplement

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


Store in a cool, dry place.


Ingredients: L-Alpha Glycerylphosphorylcholine.
Capsule shells: Hydroxypropyl Methylcellulose.

Ingredients per Capsule % NRV*
Alpha-GPC 300mg -**

* Nutrient Reference Value
** no reference available

Per capsule: 300mg
In total: 27g / jar

Product Details

German Pharmaceutical Number (PZN) 17583460
Production Bottling and encapsulation in the EU according to HACCP, GMP / ISO 22000 2005 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.

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