Ultra K2 Menaquinone - 4 (90 capsules) - Klaire Labs (SFI Health)

(andere) microkristallijne cellulose, vegetarische capsule (hydroxypropylmethylcellulose, water) en siliciumdioxide.

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Het supplement moet eenmaal per dag worden genomen met voedsel, of zoals geïnstrueerd door een professional in de gezondheidszorg. Neem als voedingssupplement \, neem één softgel per dag met een maaltijd \ of zoals voorgeschreven door uw arts.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Vitamin K2 MK-4 (Menaquinone-4)

Vitamin K2 MK-4 is a fat-soluble vitamin essential for calcium utilisation in the body. This synthetic vegetarian form is chemically identical to naturally occurring menaquinone-4 and is designed to support bone and connective tissue function.

This form is vegetarian and synthetic, with minimal inactive ingredients, formulated to be hypoallergenic and suitable for vegan diets.

What Does Vitamin K2 MK-4 Do?

Vitamin K2 MK-4 activates matrix Gla-proteins and osteocalcin, which direct calcium away from soft tissues and into the bone matrix to support skeletal structure. The MK-4 form also has potential effects on cartilage health and joint flexibility through connective tissue maintenance.

In addition, this MK-4 form is capable of crossing the blood-brain barrier, suggesting broader biological reach in supporting normal physiological processes.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Why Klaire Labs Ultra K2 Menaquinone is Welzo Chosen

This brand's reputation for quality and dependability began long before today, with Klaire Labs (now SFI Health) recognised as a trusted name in the supplement industry since 1969. This longevity, paired with a commitment to purity and potency, places Klaire Labs among the most credible manufacturers in the market. Our medical team our medical team evaluated Klaire Labs against peers for consistency in formulation and manufacturing standards, emphasising rigorous quality control and transparent practices, including GMP Quality Assured production and allergen-free, Non-GMO formulations how we verify ingredient quality.

The brand really shines for product-specific quality, offering hypoallergenic, minimal inactive ingredients and a synthetic yet biologically identical MK-4 vitamin K2, manufactured under professional-grade standards. This aligns with Welzo’s criteria for reliability and safety when selecting a supplier. The result is a strong, trust-led partnership that prioritises consistent quality for customers. This is why Klaire Labs Ultra K2 Menaquinone fits nicely into our product portfolio and meets our rigorous vetting process.