--- product_id: 109469208 title: "Maximum Strength Vitamin D 4000 iu + (365 Tablets / 1 Year Supply) 100% Pure Certified Vitamin D3 Cholecalciferol" brand: "biopharm-x" price: "€ 15.92" currency: EUR in_stock: true reviews_count: 8 category: "Biopharm X" url: https://www.desertcart.pt/products/109469208-maximum-strength-vitamin-d-4000-iu-365-tablets-1-year store_origin: PT region: Portugal --- # 4000 IU max strength dose 365 tablets = 1 year supply UK-made, FDA & MHRA approved Maximum Strength Vitamin D 4000 iu + (365 Tablets / 1 Year Supply) 100% Pure Certified Vitamin D3 Cholecalciferol **Brand:** biopharm-x **Price:** € 15.92 **Availability:** ✅ In Stock ## Summary > ☀️ Elevate your daily health game with Maximum Strength Vitamin D—because your glow deserves the best! ## Quick Answers - **What is this?** Maximum Strength Vitamin D 4000 iu + (365 Tablets / 1 Year Supply) 100% Pure Certified Vitamin D3 Cholecalciferol by biopharm-x - **How much does it cost?** € 15.92 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/109469208-maximum-strength-vitamin-d-4000-iu-365-tablets-1-year) ## Best For - biopharm-x enthusiasts ## Why This Product - Trusted biopharm-x brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Vegan & Unflavored:** 100% vegan-friendly and unflavored for clean, hassle-free supplementation. - • **Certified Pure & Safe:** Manufactured in a UK FDA & MHRA approved facility, guaranteeing premium quality and safety. - • **EFSA-Approved Benefits:** Backed by European Food Safety Authority approval for trusted, science-backed health support. - • **Power-Packed Daily Dose:** Get your optimal 4000 IU Vitamin D3 in just one tablet a day—no more multiple pills! - • **Year-Long Wellness Supply:** 365 tablets ensure uninterrupted health support for a full 12 months—never run out. ## Overview Maximum Strength Vitamin D 4000 IU delivers a potent daily dose of pure Vitamin D3 in a convenient once-daily tablet. With 365 tablets per pack, it provides a full year’s supply of vegan-friendly, unflavored supplements manufactured in a UK FDA and MHRA approved facility. EFSA-approved benefits ensure trusted support for optimal body function and skin health. ## Description Maximum Strength Vitamin D 4000 iu + (365 Tablets / 1 Year Supply) 100% Pure Certified Vitamin D3 Cholecalciferol : desertcart.co.uk: Health & Personal Care Review: Great vitamins. - Excellent product. I only take one ta belt now and again. Review: Great product, secure delivery. 5⭐ - As I have a D3 deficiency this pill is great. Due to its strength I only have to take 1 a day instead of 2 or 3. How much gets absorbed I can not tell, I am no doctor. The delivery was fast, next day. The cost is competitive with others. The pills arrived in a plain silver sealed bag inside a cardboard envelope. ## Features - Maximum Strength Vitamin D Supplement - A full years supply (365 Tablets - 1 Per Day) - Vitamin D is fundamental to maintain health and to enable the body to function optimally - Manufactured within the UK in an FDA and MHRA approved facility for your highest level of safety - All benefits have been approved by the European Food Safety Authority (EFSA) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07M9CHLLG | | ASIN | B07M9CHLLG | | Best Sellers Rank | 39,789 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 369 in Vitamin D | | Brand Name | Biopharm-X | | Customer Reviews | 4.6 4.6 out of 5 stars (1,144) | | Customer reviews | 4.6 4.6 out of 5 stars (1,144) | | Diet Type | Vegan | | Dosage Form | Tablet | | Flavour | Unflavoured | | Item Form | Tablets | | Manufacturer | Biogen Health Science | | Manufacturer | Biogen Health Science | | Number of Items | 1 | | Package Dimensions | 22.5 x 15.9 x 1.4 cm; 110 g | | Primary Supplement Type | Vitamin D3,Calcium,Vitamin D | | Specific Uses For Product | Skin | | Unit Count | 365 Count | ## Product Details - **Brand:** Biopharm-X - **Diet type:** Vegan - **Flavour:** Unflavoured - **Item form:** Tablets - **Primary supplement type:** Vitamin D3,Calcium,Vitamin D ## Images ![Maximum Strength Vitamin D 4000 iu + (365 Tablets / 1 Year Supply) 100% Pure Certified Vitamin D3 Cholecalciferol - Image 1](https://m.media-amazon.com/images/I/71I+QKUNNAL.jpg) ## Questions & Answers **Q: Is this product (vit d3 - chlolecalciferol) actually 5000 iu? information leads me to believe otherwise. confirmation would be greatly appreciated** A: I can confirm the strength is as advertised - Formula: 1 ug = 40 IU / 125ug x 40 = 5000 **Q: 60mg each tablet.??. mg = milligrams (NOT micrograms). Clearly you have a serious labelling error here. micrograms = mcg or ug** A: Avoid this brand the doses dont make sense. **Q: Please can you clarify. Your packaging is wrong. You state 60mg = 5000iu but 60mg using the formula 1mcg=40iu means that yr tablets are 2,400,000iu.** A: It says NRV2.500 amount per serving 60mg providing 5000iu vitamin D 365 tablet's **Q: Does this product contain silicon dioxide?** A: Hi, I hope you are well. I can confirm this product does not contain silicon dioxide. Warmest regards ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great vitamins. *by A***R on 30 November 2025* Excellent product. I only take one ta belt now and again. ### ⭐⭐⭐⭐⭐ Great product, secure delivery. 5⭐ *by H***T on 19 January 2020* As I have a D3 deficiency this pill is great. Due to its strength I only have to take 1 a day instead of 2 or 3. How much gets absorbed I can not tell, I am no doctor. The delivery was fast, next day. The cost is competitive with others. The pills arrived in a plain silver sealed bag inside a cardboard envelope. ### ⭐⭐⭐⭐⭐ Easy to take *by N***L on 3 March 2025* Always good ## Frequently Bought Together - Maximum Strength Vitamin D 4000 iu + (365 Tablets / 1 Year Supply) 100% Pure Certified Vitamin D3 Cholecalciferol - Vitamin B12 1000mcg (365 Vegan Tables / 1 Year Supply) Premium Grade / 100% Pure Certified & Maximum Strength - Vitamin C 1000mg Tablets + Rosehip & Bioflavanoids (4 Month Supply) 100% Pure Certified Ascorbic Acid - Suitable for Vegetarians & Vegans - Manufactured in The UK by BioPharmX --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/109469208-maximum-strength-vitamin-d-4000-iu-365-tablets-1-year](https://www.desertcart.pt/products/109469208-maximum-strength-vitamin-d-4000-iu-365-tablets-1-year) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-24*