Life Extension Vitamin D3 with Sea-Iodine is a vitamin d supplement that helps support bone health and immune function, while iodine supports thyroid hormone production for balanced metabolism. This blend ties vitamin d3's role in supporting bone density and immune health to iodine's part in thyroid hormone production. Clean, non GMO and gluten free, it comes in a convenient daily capsule crafted to fit busy lives and your health goals.

Available Sizes & Variants:

60 capsules Life Extension Vitamin D3 with Sea-Iodine - convenient daily dose for ongoing support.

Benefits & Features:

• Supports bone health and immune function for daily resilience.
• Key ingredients vitamin d3 and sea algae iodine work together to support thyroid hormone production and steady energy.
• Convenient daily capsule fits busy routines, helping you stay consistent with your health goals.
• Non GMO gluten free status helps ensure a clean vitamin d supplement you can trust in your daily routine.
• Each capsule provides a precise combination of vitamin D3 and sea iodine to support both bone and thyroid health, helping you maintain energy levels as seasons change.

Life Extension blends science with practical, everyday care. Sea-Iodine Complex uses organic sea algae to deliver iodine, while vitamin D3 supports bone health and immunity, with 125 mcg (5,000 IU) per capsule and 1,000 mcg iodine. The non GMO gluten free formula is easy to weave into daily routines, making this vitamin d supplement a reliable choice for wellbeing.

Vitamin D (as cholecalciferol) 125 mcg (5,000 IU), Iodine (from Sea-Iodine Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)) 1,000 mcg, microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, modified food starch, silica, stearic acid.

• GTIN: 737870175865
• Manufacturer: Life Extension
• Categories: Back to School Supplements & EssentialsLife ExtensionMineralsThyroid SupplementsVitamin 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 (1) capsule daily with food, or as recommended by a healthcare practitioner. Store in a cool, dry place away from excessive heat. Keep out of reach of children. Do not exceed the recommended dose. Consult your physician if you are undergoing treatment for a medical condition, are pregnant, or breastfeeding.

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

The Core Ingredient Is: Vitamin D3 (Cholecalciferol)

Vitamin D3, known as cholecalciferol, is a fat-soluble vitamin essential for bone and immune health.

This form is the everyday cholecalciferol used in supplements and helps with calcium metabolism to support bone mineralisation and immune function.

What Exactly Does Vitamin D3 Do?

Vitamin D3 helps regulate calcium absorption, keeping bone density up and supporting immune system function.

Dr. Anderson at University of Oxford found that Vitamin D3 helps immune function and calcium metabolism, in line with EFSA guidance.

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

Life Extension is Welzo’s chosen partner for this Vitamin D3 with Sea-Iodine formula because this brand demonstrates a clear commitment to quality, purity and transparency in its product formulation. The Life Extension approach delivers a non-GMO, gluten-free capsule that combines Vitamin D3 with a Sea-Iodine Complex, offering a streamlined daily option for essential nutrient support. This brand stands out in our evaluation for its focus on reliable, well-formulated ingredients in a single capsule, which aligns with our aim to provide straightforward, well‑characterised products to customers.

Our medical team our medical team reviewed how Life Extension structures its formulation to maintain potency and simplicity, and we verify that the product leverages a clear combination of ingredients that are easy to understand for informed choices. This choice is reinforced by our ingredient quality and purity standards our ingredient quality and purity standards, ensuring the brand meets Welzo’s strict expectations for safety and consistency.

The selection decision hinges on Life Extension’s proven alignment with our criteria for credibility, product integrity and customer reassurance, making them a natural fit over alternatives in this category.