D-Biotin Capsules

Pharmaceutical Grade

High-dose D-biotin in pharmaceutical quality with sprouted buckwheat powder. 10mg biotin per capsule for individuals with increased requirements. Vegan, non-GMO, laboratory tested, no additives. Made in Germany. 120 capsules
  • Ultra pure D-Biotin in pharmaceutical quality (99.32%)
  • Fibre-rich sprouted buckwheat used as a filler (contains natural B vitamins and biotin)
  • No additives or anti caking agents
  • Vegan, non-GMO
  • Biotin content guaranteed through laboratory testing



120 capsules

Delivery : 1–3 business days

Incl. VAT, excl. Shipping

€218.00 / 1kg
In stock

Premium Bioactive Ingredients

  • D-Biotin in high-purity pharmaceutical grade (99.32% purity)
  • Highly dosed with a full 10 mg per capsule - for increased requirements
  • D-Biotin (Vitamin B7) is the natural bioactive form of biotin
  • Only prebiotic acacia fiber as filler
  • High-quality natural filler from sustainable, resource-conserving cultivation without pesticides
  • Biotin content guaranteed by laboratory test

How are we different?

With D-biotin, we use the naturally occurring, bioactive form of biotin, which is directly involved in protein, carbohydrate and fat metabolism. Although D-biotin can in principle also be obtained from plant sources, this process is currently not yet approved in the EU. Therefore, in this case, a synthetic D-biotin of high pharmaceutical grade (99.3% purity) is used.

The only other ingredient we use is a pure natural filler: premium acacia fiber from sustainable cultivation without pesticides from the world's top manufacturer. Unlike the otherwise common synthetic filler, we use a sustainably sourced natural material and at the same time a high fiber food. Our acacia fiber comes from climate-neutral, resource-conserving and fair cultivation in consideration of the United Nations Sustainable Development Goals.

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



Biotin (B7) is one of the water-soluble B vitamins best known for its beneficial effects on the skin and hair. Biotin also plays a role in energy and macronutrient metabolism, and supports normal psychological functioning. Biotin can be found in large quantities in eggs, offal, wild salmon, milk products, oats, nuts, avocados, raspberries, and cauliflower.


Our D-biotin is available in the naturally occurring, bioactive form of biotin that is directly utilised by the body for protein, carbohydrate and fat metabolism. Although biotin can be derived from plant-based sources, this process is not yet permitted in the EU. Consequently, we use synthetic D-biotin in ultra pure pharmaceutical quality (99.3%).

Sprouted Buckwheat Powder as a Functional Filler

For our biotin capsules we use fibre-rich sprouted buckwheat powder as a filler. Sprouted buckwheat is notable for its naturally high content of B vitamins including small amounts of biotin. During the germination process, vital substances, enzymes, minerals and proteins are released. These nutrients help to integrate the active biotin ingredient into a natural complex.

Quality and Purity

This product was produced in pharmaceutical quality according to the highest quality and purity standards. Bottling and encapsulation takes place in the EU. Lactose- and fructose-free, non-GMO, vegan, and produced without additives.


Recommended Dosage

Take 1 capsule (10,000µg biotin) with 200ml water daily.

Advisory Information

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


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.



D-Biotin, Acacia Powder

Capsule shells: Hydroxypropyl Methylcellulose

Ingredients per Daily Dose (1 Capsule) % NRV*
D-biotin 10,000µg 20,000%

* % Nutrient Reference Value

Per capsule: 10mg D-biotin
In total:
120mg D-biotin / jar



All eight essential B vitamins work very closely together in the body in numerous metabolic processes and can only develop their full effect if a sufficient supply of all vitamins is equally ensured. In many cases, it therefore makes sense to take the vitamins together.

Product details

German Pharmaceutical Number (PZN) 17273765

In-house production in Europe, bottling and encapsulation in the EU according to HACCP, GMP / 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.

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