---
product_id: 413303862
title: "Theralogix Thera-D 4000 Vitamin D Supplement - 4,000 IU (100 mcg) Vitamin D3 Tablets - 90-Day Supply - Immune Support Supplement for Women & Men - Aids Bone & Heart Health - NSF Certified - 90 Tablets"
brand: "theralogix"
price: "€ 101.86"
currency: EUR
in_stock: true
reviews_count: 5
category: "Theralogix"
url: https://www.desertcart.nl/products/413303862-theralogix-thera-d-4000-vitamin-d-supplement-4-000-iu
store_origin: NL
region: Netherlands
---

# 4000 IU Vitamin D3 per tablet Supports bone & heart health NSF Certified purity & potency Theralogix Thera-D 4000 Vitamin D Supplement - 4,000 IU (100 mcg) Vitamin D3 Tablets - 90-Day Supply - Immune Support Supplement for Women & Men - Aids Bone & Heart Health - NSF Certified - 90 Tablets

**Brand:** theralogix
**Price:** € 101.86
**Availability:** ✅ In Stock

## Summary

> ☀️ Elevate your wellness game with Thera-D 4000—because your health deserves the spotlight.

## Quick Answers

- **What is this?** Theralogix Thera-D 4000 Vitamin D Supplement - 4,000 IU (100 mcg) Vitamin D3 Tablets - 90-Day Supply - Immune Support Supplement for Women & Men - Aids Bone & Heart Health - NSF Certified - 90 Tablets by theralogix
- **How much does it cost?** € 101.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/413303862-theralogix-thera-d-4000-vitamin-d-supplement-4-000-iu)

## Best For

- theralogix enthusiasts

## Why This Product

- Trusted theralogix brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sunshine in a Tablet:** Get 4000 IU of biologically active Vitamin D3 daily—no sunburn required.
- • **Certified Clean & Pure:** NSF-certified, vegan, gluten-free, and free from dyes and additives for peace of mind.
- • **Heart & Bone Powerhouse:** Clinically shown to support optimal heart and bone health for active professionals.
- • **Immune Resilience Boost:** Fortify your immune system with clinically supported Vitamin D levels.
- • **90-Day Supply, Zero Hassle:** Convenient daily dosing with 90 easy-to-swallow tablets—stay consistent, stay strong.

## Overview

Theralogix Thera-D 4000 delivers a potent 4000 IU dose of biologically active Vitamin D3 per tablet, supporting immune function, bone strength, and heart health. Manufactured in the USA, NSF-certified for purity and potency, vegan, gluten-free, and free from additives, this 90-day supply ensures daily wellness with trusted quality.

## Description

Buy Theralogix Thera-D 4000 Vitamin D Supplement - 4,000 IU (100 mcg) Vitamin D3 Tablets - 90-Day Supply - Immune Support Supplement for Women & Men - Aids Bone & Heart Health - NSF Certified - 90 Tablets online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: I've been taking these supplements for over a year and notice less hair loss and a fully set of hair. Not only it's effective, the product is one of the cleanest hair supplements out there. Highly recommend this product.
Review: This product meets my needs. Tablets are easy to swallow. I will order again.

## Features

- Support Bone & Heart Health: Numerous studies suggest optimal vitamin D levels aid heart and bone health, making Thera-D an ideal supplement*
- Biologically Active Vitamin D3: Our vitamin D tablets provide the same biologically active form of vitamin D created in our bodies after direct sunlight exposure, without the risk of UVB’s*
- Immune Support Supplement: Thera-D 4000 supports healthy immune function to help your body stay resilient with 4,000 IU (100 mcg) of vitamin D per tablet*
- Purity Tested: Our USA-manufactured supplements are independently verified for potency and purity by NSF; gluten-free, no dyes, vegan, contains no additives and made with premium ingredients
- About Theralogix: Theralogix produces scientifically formulated nutritional supplements made from premium ingredients, independently tested & certified, and trusted by healthcare providers & patients for over 20 years

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08SY6PV7R |
| ASIN  | B08SY6PV7R |
| Age Range Description | Adult |
| Brand | Theralogix |
| Customer Reviews | 4.9 4.9 out of 5 stars (107) |
| Customer reviews | 4.9 4.9 out of 5 stars (107) |
| Date First Available | 8 April 2021 |
| Format | Tablet |
| Item model number  | 4000IU/100mcg |
| Manufacturer  | Theralogix |
| Product Dimensions  | 5.08 x 5.08 x 8.89 cm; 50 g |
| Serving Recommendation | Take one tablet per day with food, or as directed by your healthcare provider. |

## Product Details

- **Brand:** Theralogix
- **Diet type:** Vegetarian
- **Flavour:** Unflavored
- **Item form:** Tablet
- **Primary supplement type:** Vitamin D

## Images

![Theralogix Thera-D 4000 Vitamin D Supplement - 4,000 IU (100 mcg) Vitamin D3 Tablets - 90-Day Supply - Immune Support Supplement for Women & Men - Aids Bone & Heart Health - NSF Certified - 90 Tablets - Image 1](https://m.media-amazon.com/images/I/71KkDkAu1QL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***A on 18 May 2025*

I've been taking these supplements for over a year and notice less hair loss and a fully set of hair. Not only it's effective, the product is one of the cleanest hair supplements out there. Highly recommend this product.

### ⭐⭐⭐⭐⭐ Review
*by F***E on 5 November 2024*

This product meets my needs. Tablets are easy to swallow. I will order again.

### ⭐⭐⭐⭐⭐ Review
*by A***E on 26 May 2023*

My kidney doctor asked me to add a vitamin D supplement to my meds, and he has been happy with my labs reports since I started using Thera D 4,000 IU.

## Frequently Bought Together

- Theralogix Thera-D 4000 Vitamin D Supplement - 4,000 IU (100 mcg) Vitamin D3 Tablets - 90-Day Supply - Immune Support Supplement for Women & Men - Aids Bone & Heart Health - NSF Certified - 90 Tablets
- Theralogix NeoQ10 Coenzyme Q10 Supplement - Heart Health & Fertility Support - CoQ10 Fertility Supplement for Men & Women* - NSF Certified - 90 Softgels (90-Day Supply)
- Theralogix TherOmega Omega-3 Fish Oil Supplement - Supports Heart, Brain, Immune & Joint Health* - 700 mg DHA & EPA from Wild Alaska Pollock - Sustainably Sourced - NSF Certified - 90 Softgels

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-04*