---
product_id: 5311166
title: "Premier Research Labs Vitamin D3 Serum - Liquid Vitamin D Oil Drops for Adults, Liquid Vitamin D3 5000 IU, Sublingual Vit D3 Liquid - 0.43 fl oz"
brand: "premier research labs"
price: "$45.24"
currency: USD
in_stock: true
reviews_count: 8
category: "Premier Research Labs"
url: https://www.desertcart.us/products/5311166-premier-research-labs-vitamin-d3-serum-liquid-vitamin-d-oil
store_origin: US
region: United States of America
---

# Non-GMO & natural formula 5000 IU liquid D3 per dose Supports bone & immune health Premier Research Labs Vitamin D3 Serum - Liquid Vitamin D Oil Drops for Adults, Liquid Vitamin D3 5000 IU, Sublingual Vit D3 Liquid - 0.43 fl oz

**Brand:** premier research labs
**Price:** $45.24
**Availability:** ✅ In Stock

## Summary

> ☀️ Elevate your wellness game with every drop!

## Quick Answers

- **What is this?** Premier Research Labs Vitamin D3 Serum - Liquid Vitamin D Oil Drops for Adults, Liquid Vitamin D3 5000 IU, Sublingual Vit D3 Liquid - 0.43 fl oz by premier research labs
- **How much does it cost?** $45.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/5311166-premier-research-labs-vitamin-d3-serum-liquid-vitamin-d-oil)

## Best For

- premier research labs enthusiasts

## Why This Product

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

## Key Features

- • **Sublingual Convenience:** Fast-absorbing liquid serum designed for easy daily use without pills or hassle.
- • **Clean & Pure Ingredients:** Non-GMO, Kosher, and free from harmful additives—because your health deserves the best.
- • **Ultra-Potent Daily Boost:** 5,000 IU of naturally sourced Vitamin D3 in every 5-drop dose for maximum wellness impact.
- • **Enhanced Absorption Formula:** Infused with extra virgin olive oil to ensure your body soaks up every drop efficiently.
- • **Sustainably Sourced Excellence:** Crafted with premium, globally sourced ingredients for a supplement you can trust.

## Overview

Premier Research Labs Vitamin D3 Serum delivers a potent 5,000 IU dose of natural liquid Vitamin D3 per serving, enhanced with extra virgin olive oil for superior absorption. This clean, non-GMO, and Kosher formula supports bone health, immune function, and cardiovascular wellness in a convenient sublingual liquid form, offering about 114 servings per bottle for sustained daily vitality.

## Description

Buy Premier Research Labs Vitamin D3 Serum - Liquid Vitamin D Oil Drops for Adults, Liquid Vitamin D3 5000 IU, Sublingual Vit D3 Liquid - 0.43 fl oz on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Good product - Was recommended by a doctor. Easy to use, just a couple of drops per day to stabilize vitamin D levels. The product is great, but the price has gone up so much over the last couple of years
Review: Best D3 around! - Excellent product that raises D# levels fast. Great in winter.

## Features

- HIGH-POTENCY VITAMIN D3: Premier Research Labs Vitamin D3 Serum provides 5,000 IU of naturally-sourced liquid vitamin D3 per five-drop dose to promote overall health and wellness
- BONE HEALTH & IMMUNE SUPPORT: Our liquid Vitamin D drops promote bone health and mineralization for adults, as well as supporting the body's natural immune response and cardiovascular health*
- PURE & EFFECTIVE FORMULA: We source natural Vitamin D3 & combine with extra virgin olive oil for enhanced absorption. Our premier vitamin D serum is Non-GMO, Kosher, & made with no harmful additives
- SUGGESTED USE: Take 5 drops of our Vitamin D3 oil daily, equating to approximately 125 mcg/5,000 IU of Vitamin D3 per dose. Each bottle of our Vitamin D3 drops for adults contains about 114 servings
- PREMIER-QUALITY SUPPLEMENTS: At Premier Research Labs, we pride ourselves in creating high quality supplements using sustainably & meticulously sourced natural ingredients from around the globe

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006PFBVAC |
| Best Sellers Rank | #25,914 in Health & Household ( See Top 100 in Health & Household ) #844 in Blended Vitamin & Mineral Supplements |
| Brand | Premier Research Labs |
| Brand Name | Premier Research Labs |
| Customer Reviews | 4.7 out of 5 stars 678 Reviews |
| Item Form | Serum |
| Manufacturer | Premier Research Labs |
| Material Feature | Natural, Organic |
| Material Features | Natural, Organic |
| Material Type Free | Artificial Color Free |
| Number of Items | 1 |
| Recommended Uses For Product | Provides Vitamins |
| Scent | Unscented |
| Scent Name | Unscented |
| UPC | 661799414777 |

## Product Details

- **Scent:** Unscented
- **Brand:** Premier Research Labs
- **Item Form:** Serum
- **Material Feature:** Natural, Organic
- **Material Type Free:** Artificial Color Free

## Images

![Premier Research Labs Vitamin D3 Serum - Liquid Vitamin D Oil Drops for Adults, Liquid Vitamin D3 5000 IU, Sublingual Vit D3 Liquid - 0.43 fl oz - Image 1](https://m.media-amazon.com/images/I/610mffpiSJL.jpg)

## Questions & Answers

**Q: What are ingredients?**
A: I can no longer read the ingredients on my bottle.
I will tell u that my blood work has the appropriate amount of D3 since taking just 3 drops per day. At age 64, it’s difficult to accomplish this.
It’s a small bottle but lasts for a long time. I will never run out of this product.

**Q: is it vegan? what is the source of vitamin D ?**
A: supposed to be vegan, I used this brand many years ago so can't say if they've changed the composition

**Q: Does this come with a graduated dropper so I can get the exact amount?**
A: It comes with an eye dropper I take just one drop.

**Q: Is this cholecalciferol**
A: Yes, it is D3 (cholecalciferol). It's the best one I've ever taken.  It really works for me. I've, recently, fallen off my bike and fallen down while hiking and have never broken a bone or been hurt. I'm 71 years old!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by L***Y on November 7, 2025*

Was recommended by a doctor. Easy to use, just a couple of drops per day to stabilize vitamin D levels. The product is great, but the price has gone up so much over the last couple of years

### ⭐⭐⭐⭐⭐ Best D3 around!
*by M***R on November 17, 2025*

Excellent product that raises D# levels fast. Great in winter.

### ⭐⭐⭐⭐⭐ Great source of vitamin D3
*by G***Y on January 12, 2026*

Best source of vitamin D3; it’s in a base of olive oil oil most other vitamin D’s are in a base of medium chain triglycerides

## Frequently Bought Together

- Premier Research Labs Vitamin D3 Serum - Liquid Vitamin D Oil Drops for Adults, Liquid Vitamin D3 5000 IU, Sublingual Vit D3 Liquid - 0.43 fl oz
- Premier Research Labs: Max B-ND Liquid Vitamin B-Complex for Liver & Brain Health - Sublingual Drops for Energy, Immune & Adrenal Support - 2 fl oz - Thiamin, B12, B6 & More - for Men, Women
- Premier Research Labs B12-ND - High-Potency Vitamin B12 - Supports Energy Levels, Memory & More - Brain Focus for Vegetarians & Vegans - Kosher Certified, Organic Ingredients - 2 fl oz

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-24*