Calcium with Vitamin D-3 Powder helps bone health by delivering calcium and vitamin D-3 to promote stronger bones and teeth. Hypoallergenic and additive free, it’s designed for daily use by those with sensitivities. A blend of calcium citrate and calcium carbonate boosts absorption, while Kirkman Labs' Ultra Tested quality control and allergen free standards set it apart.

Available Sizes & Variants:

454g Calcium with Vitamin D-3 Powder - Great for consistent daily use and long term bone support.

Benefits & Features:

• Supports bone and teeth health with calcium blend.
• Enhances calcium absorption thanks to a calcium citrate and carbonate mix.
• Hypoallergenic formula is free from major allergens, making it suitable for sensitive souls.
• Ultra Tested quality control and third party purity testing give you consistent, reliable calcium intake with fewer allergens, making it easier to fit into a daily routine.
• Maintains bone density in adults over 50 to support mobility.

Kirkman Labs has built its reputation on hypoallergenic, allergen free supplements and rigorous quality controls. Ultra Tested quality control and third party purity checks back every batch, giving you confidence in what you swallow. The formula blends calcium carbonate with calcium citrate for better absorption, paired with vitamin D-3 to support calcium uptake. Unflavoured and easy to mix, it suits daily wellness routines for families and older adults alike. As a vitamin d supplement, it helps support bone health alongside daily diet.

Calcium Carbonate, Calcium Citrate, Vitamin D-3.

• GTIN: 812325020287
• Manufacturer: Kirkman Laboratories
• Categories: Back to School Supplements & EssentialsCalcium SupplementsHypoallergenic Makeup ProductsIn stockJoints, Bones & Muscles HealthKirkmanMineralsNew ArrivalsPopular Supplement BrandsVitamin D
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the 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 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1/2 teaspoon daily or as advised by your healthcare practitioner. Adults and Children: Start with 1 - 3 droppers full (26 - 78 drops) three to five times a day in hot water. Regular use is recommended. Dosage is related to improvement. Do not use during pregnancy or while nursing unless supervised by a physician.

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

The Active Ingredient Is: Calcium (Calcium Carbonate and Calcium Citrate)

Calcium is a mineral that sits naturally in the body and is essential for skeletal structure and teeth mineralisation. This formulation combines two well absorbed calcium forms to support regular calcium availability for bone health. This formula also includes vitamin D3 to help support calcium uptake.

Calcium carbonate and calcium citrate provide the primary mineral source, while vitamin D3 enhances how the mineral is utilised in the body. This combination is designed to optimise calcium availability for bone and teeth maintenance.

What Does Calcium Do?

Calcium contributes to the maintenance of normal bones and teeth, playing a role in mineralisation and structural support. It works in conjunction with vitamin D3 to support healthy calcium balance in the body.

Dr. Dawson-Hughes of Tufts University found that combined calcium and vitamin D supplementation can reduce fracture risk in older adults, reflecting a supportive role for calcium in bone health in the context of adequate vitamin D status.

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

Kirkman Labs shines for its long-standing commitment to quality and allergy-conscious formulation. The brand is recognised for its hypoallergenic, additive-free methods and a manufacturing philosophy built around spaces that reduce common allergens, which aligns with Welzo’s emphasis on safety and purity.

This brand was assessed by Welzo's healthcare professionals for compliance with our ingredient quality and purity standards, and the team confirmed Kirkman Labs’ GMP compliance and its Ultra-Tested® quality control protocol with third‑party testing for purity and safety. These practices support confidence in both the product and its manufacturing process.

Welzo picked Kirkman Labs Calcium with Vitamin D-3 Powder because the brand shows a solid mix of reliability, emphasis on allergen safety, and strict quality controls that suit a calcium plus vitamin D formulation aimed at supporting bone health. This brand’s reputation, together with our expert assessment, underpins a trusted partnership for this supplement.