Calcium with vitamin D3 helps keep bones strong and calcium absorption healthy, and Kirkman Labs' Ultra-Tested hypoallergenic standards ensure a safe and allergy friendly option. This chewable format makes calcium easy to take, even for those who dislike swallowing pills. The product is gluten free and casein free, keeping it suitable for allergy conscious households. This Ultra-Tested certification reflects Kirkman's commitment to quality and reliable supplementation.

Available Sizes & Variants:

120 chewable tablets calcium supplement – ideal for daily bone support.

Benefits & Features:

• Supports bone health with essential calcium for strong bones and long lasting skeletal strength.
• Vitamin D3 enhances calcium absorption for better utilisation.
• Hypoallergenic formula is gluten free and casein free, ideal for sensitive diets.
• Chewable tablets make daily supplementation easy.
• Ultra-Tested certification reflects Kirkman's commitment to robust quality controls, giving you confidence that the product meets strict allergen and purity standards so you can supplement worry free.

Born from Kirkman Labs' long standing focus on hypoallergenic supplements, this chewable calcium with vitamin D3 carries the Ultra-Tested seal, and is gluten free and casein free. The calcium carbonate source, paired with vitamin D3 to help absorption, mirrors the brand's meticulous approach to making supplementation safer for sensitive diets. Kirkman’s allergen safety standards extend to eight major allergens, backing a dependable choice for families seeking reliable bone support. It’s a practical option among calcium supplements for osteoporosis and general bone health.

Calcium Carbonate, Vitamin D-3.
Dextrose, Magnesium Stearate (plant based), Silicon Dioxide

• GTIN: 812325000000
• Manufacturer: Kirkman Laboratories
• Categories: Back to School Supplements & EssentialsCalcium SupplementsJoints, 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 one to two tablets daily, or follow your healthcare practitioner's instructions. Suggested daily intake is one (1) capsule once or twice\, with or without food\, or as directed by a medical practitioner.

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

Calcium is a mineral that helps keep normal bones and teeth and supports a range of bodily functions in the body.

This formula uses calcium carbonate as the main source and includes vitamin D3 to aid calcium absorption in the gut, matching allergen-friendly, hypoallergenic product standards.

What Does Calcium Do?

Calcium takes part in bone structure and helps with normal muscle and nervous system function, with vitamin D3 helping to boost calcium absorption as recognised in EFSA guidance.

Besides its skeletal role, the nutrient supports normal blood vessel function and other essential bodily processes, reflecting its broad backing for healthy physiology.

Kirkman Labs stands out with its evidence-based formulation approach and a steady focus on purity and safety. The brand’s Ultra-Tested® designation signals extra testing beyond the usual checks, highlighting a solid commitment to quality and reliability for sensitive, allergy-prone users.

Welzo considered Kirkman Labs against our supplier criteria, emphasising manufacturing excellence, allergen control, and transparency. The brand specialises in hypoallergenic formulations and keeps products that are gluten-free and casein-free, aligning with our standards for safe, accessible supplements. This attention to allergen avoidance supports a broad range of consumers seeking predictable ingredients and rigorous quality controls. Our expert team of doctors, nurses, and nutritionists reviews brands like Kirkman Labs for safety and consistency our expert team of doctors, nurses, and nutritionists and in conjunction with the certifications we require the certifications we require.

product-specific fit and market suitability: Kirkman’s hypoallergenic, Ultra-Tested® calcium with vitamin D3 is well aligned with bone health support needs while maintaining allergen-free integrity, making it an ideal partner for the British market. This brand’s heritage in specialised, safe formulations helped us choose them as a trusted supplier that meets our rigorous vetting process.