Life Extension Liquid Vitamin D3 is a vitamin D supplement that backs bone health, immune function, and overall wellbeing with easy, quick absorption. Rooted firmly in Life Extension's science heritage, this label leans on real research. Dr. JoAnn Manson of Harvard University notes that vitamin D3 helps maintain healthy blood levels when taken daily, and researchers emphasise its role in immune resilience. Purity remains a core focus, and quality matters to real users.

Available Sizes & Variants:

50mcg Life Extension Liquid Vitamin D3 - standard daily dose

Benefits & Features:

• Supports bone health with easy uptake.
• Liquid delivery means quicker uptake than capsules, helping support immune function and muscle health, even when outdoor sunlight is scarce and daily routines keep you indoors.
• Manufactured in the United States to GMP standards, this vitamin d supplement prioritises purity and quality.
• The formula stays free from unnecessary fillers to maximise purity and absorption.
• Life Extension brings four decades of scientific focus to this vitamin d3 supplement, backed by rigorous testing and a commitment to quality.

Life Extension has built a solid reputation since 1980, pairing science with everyday usability. This liquid vitamin D3 product mirrors the brand’s commitment to purity and transparency, backed by GMP manufacturing in the United States. The company’s standing as a science driven pioneer is reflected in its recognition by ConsumerLab.com as the #1 rated catalog and internet brand for nutritional supplements for four consecutive years. Vitamin D3 supports bone health and immune responses, aligning perfectly with this product’s purpose.

Vitamin D3 (as cholecalciferol)

• GTIN: 737870223214
• Manufacturer: Life Extension
• Size: Mint / 29 ml
• Categories: Back to School Supplements & EssentialsCHECKOUT UPSELLLife ExtensionLiquid MultivitaminsVitamin D Supplements, Tablets & Gummies
• 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 (1) drop once or twice daily with food, or as recommended by a healthcare practitioner. Store in a cool, dry place, away from direct sunlight. Keep out of reach of children. Do not exceed the recommended dose. Individuals consuming more than 50 mcg (2000 IU) per day from diet and supplements should periodically obtain a serum 25-hydroxy vitamin D measurement. Do not exceed 10,000 IU per day unless recommended by your doctor. Vitamin D supplementation is not recommended for individuals with high blood calcium levels.

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

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

Vitamin D3, also called cholecalciferol, is a fat-soluble nutrient essential for helping everyday bodily functions linked to bone and immune health.

This form is a common, well absorbed vitamin D source that goes through conversion in the body to help calcium metabolism and other bodily processes.

What Does Vitamin D3 Do?

Vitamin D3 helps regulate calcium and phosphate balance, supporting bone mineralisation and muscle function, while also contributing to normal immune responses per EFSA guidance.

Evidence from clinical research suggests that higher intake can help sustain healthy blood levels of vitamin D, with 2000 IU/day identified as a safe, effective level for many people. Dr. Manson of Harvard University found that this approach supports keeping healthy blood levels of 25(OH)D.

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

Life Extension brings a proven formulation heritage and a reputation built on scientific rigour. Founded in 1980, the brand has long been recognised for innovation and quality, earning a top tier position in consumer surveys and boasting a strong, loyal customer base. This track record underpins its credibility as a trusted partner for Welzo. Life Extension manufactures in the United States and adheres to GMP manufacturing standards, with a commitment to purity and robust product development. For customers seeking transparency, CoAs are available upon request, and the brand emphasises largely filler-free formulations as part of its quality philosophy. To support our own evaluative framework, this collaboration is reviewed by our expert team of doctors, nurses, and nutritionists and aligned with the standards we enforce, ensuring consistency with Welzo’s quality commitments.

This brand was selected for its strength in evidence-based formulation and a long-standing reputation for quality manufacturing, making Life Extension Liquid Vitamin D3 a natural fit for our vitamin D category. Their established credibility, rigorous quality mindset, and accessible batch information support a secure product journey for customers seeking 50mcg vitamin D3 supplementation tailored to daily needs.