---
product_id: 10605144
title: "High Potency Vitamin C - Ascorbic Acid with Calcium, Magnesium & Potassium - Healthy Immune Function & Antioxidant Support* - Third-Party Certified - Gluten, Dairy & Soy-Free - 42 Servings"
brand: "thorne"
price: "HK$443"
currency: HKD
in_stock: true
category: "Thorne"
url: https://www.desertcart.hk/products/10605144-high-potency-vitamin-c-ascorbic-acid-with-calcium-magnesium-potassium
store_origin: HK
region: Hong Kong
---

# 1000mg Vitamin C per serving Third-party tested for purity & potency Calcium, Magnesium & Potassium for bone & tissue support High Potency Vitamin C - Ascorbic Acid with Calcium, Magnesium & Potassium - Healthy Immune Function & Antioxidant Support* - Third-Party Certified - Gluten, Dairy & Soy-Free - 42 Servings

**Brand:** thorne
**Price:** HK$443
**Availability:** ✅ In Stock

## Summary

> 💥 Elevate your wellness game with THORNE’s powerhouse Vitamin C blend!

## Quick Answers

- **What is this?** High Potency Vitamin C - Ascorbic Acid with Calcium, Magnesium & Potassium - Healthy Immune Function & Antioxidant Support* - Third-Party Certified - Gluten, Dairy & Soy-Free - 42 Servings by thorne
- **How much does it cost?** HK$443 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/10605144-high-potency-vitamin-c-ascorbic-acid-with-calcium-magnesium-potassium)

## Best For

- thorne enthusiasts

## Why This Product

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

## Key Features

- • **Immune Powerhouse:** High-potency vitamin C fortified with essential minerals to supercharge your immune defense and antioxidant protection.
- • **Skin & Tissue Glow-Up:** Boost collagen synthesis for radiant skin, stronger nails, and healthier hair—because your glow deserves science-backed support.
- • **Elite Athlete Approved:** The go-to vitamin C for 100+ pro sports teams and the #1 clinical brand recommended by health practitioners nationwide.
- • **Certified Clean & Trusted:** Third-party tested and free from gluten, dairy, and soy—purity you can trust, backed by top clinical recommendations.
- • **Gentle Absorption Formula:** Buffered with calcium, magnesium, and potassium ascorbates to maximize absorption while being kind to your stomach.

## Overview

THORNE High Potency Vitamin C delivers 1000mg of pure ascorbic acid per serving, enhanced with calcium, magnesium, and potassium to support immune function, antioxidant defense, and healthy skin. This third-party certified, allergen-free powder is trusted by professional athletes and healthcare practitioners alike, ensuring premium quality and optimal absorption without stomach discomfort.

## Description

Buy THORNE - High Potency Vitamin C - Ascorbic Acid with Calcium, Magnesium & Potassium - Healthy Immune Function & Antioxidant Support* - Third-Party Certified - Gluten, Dairy & Soy-Free - 42 Servings on desertcart.com ✓ FREE SHIPPING on qualified orders

## Features

- Immune Support: Essential vitamin C with additional minerals for optimal immune function and antioxidant support resulting in better cellular protection against free radicals within the body*
- Healthy Skin: Promotes collagen production, which enhances skin, nail, and hair health and supports healthy tissue and cartilage formation*
- Easy on the Stomach: Calcium, magnesium, and potassium ascorbates serve as a buffer to help make the higher serving of vitamin C easier to absorb, while providing additional support for healthy bones and soft tissue*
- Third-Party Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants
- Trusted: Thorne is trusted by 100+ professional sports teams and the #1 most recommended clinical brand by consumers and health-care practitioners (Based on a 2026 independent survey of US supplement consumers and health-care practitioners)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005IZIXC4 |
| ASIN  | B005IZIXC4 |
| Age Range Description | Adult |
| Allergen Information | Dairy Free, Fish Free, Shellfish Free, Soy Free |
| Best Sellers Rank | #24,923 in Health & Household ( See Top 100 in Health & Household ) #163 in Vitamin C Supplements |
| Brand Name | THORNE |
| Customer Reviews | 4.5 4.5 out of 5 stars (895) |
| Date First Available  | January 22, 2008 |
| Diet Type | Gluten Free |
| Dosage Form | Powder |
| Flavor | Unflavored |
| Global Trade Identification Number | 00693749155027 |
| Item Dimensions | 3.5 x 3.5 x 4 inches |
| Item Form | Powder |
| Item Weight | 8.32 ounces |
| Item model number  | C155 |
| Manufacturer | Thorne Research |
| Manufacturer  | Thorne Research |
| Manufacturer Part Number | C155 |
| Material Type Free | no artificial flavors,soy free,gluten free,dairy free |
| Model Number | C155 |
| Primary Supplement Type | Vitamin C |
| Product Benefits | Antioxidant Support |
| Product Dimensions  | 3.5 x 3.5 x 4 inches; 8.32 ounces |
| Specific Uses For Product | Bone |
| UPC | 693749155027 885193991829 |
| Unit Count | 8.32 Ounce |

## Product Details

- **Brand:** THORNE
- **Diet Type:** Gluten Free
- **Flavor:** Unflavored
- **Item Form:** Powder
- **Primary Supplement Type:** Vitamin C

## Images

![High Potency Vitamin C - Ascorbic Acid with Calcium, Magnesium & Potassium - Healthy Immune Function & Antioxidant Support* - Third-Party Certified - Gluten, Dairy & Soy-Free - 42 Servings - Image 1](https://m.media-amazon.com/images/I/71n0DOcc2UL.jpg)

## Questions & Answers

**Q: What makes Thorne supplements high quality?**
A: Thorne produces high-quality supplements through rigorous testing, well-researched ingredient sourcing, and strict manufacturing standards. We avoid unnecessary additives, binders, and fillers that may interfere with nutrient absorption.

**Q: How does Thorne test its supplements for quality?**
A: To confirm the purity of our ingredients, the potency of our formulas, and the absence of all contaminants, we carry out a minimum of four rounds of testing on every product we manufacture. 100+ Thorne employees are dedicated to ensuring quality.

**Q: Are Thorne supplements clinically tested and safe?**
A: Thorne partners with researchers and conducts clinical trials to support the efficacy of our products. Our team of doctors and medical experts substantiate each ingredient in every formula based on extensive clinical research and medical literature.

**Q: Why are Thorne products more expensive than other supplements?**
A: When it comes to the health of our customers, we never settle. Thorne products may be priced higher than some others because of our commitment to quality at every step. We don’t simply meet the standard in dietary supplements — we set the standard.

**Q: Where are Thorne supplements made and where are the ingredients sourced from?**
A: Located in South Carolina, Thorne manufactures supplements in the USA using globally sourced ingredients. When it comes to ingredient sourcing, we seek out only the highest-quality ingredients, selecting each one for its purity and effectiveness.

## Frequently Bought Together

- THORNE Buffered C Powder - Vitamin C (Ascorbic Acid) with Calcium, Magnesium, and Potassium - 8.32 Oz
- ORGANIC INDIA Whole Psyllium Husk Powder Organic - Psyllium Husk Fiber Supplement, Digestion Support, Vegan, Gluten-Free, Non-GMO, Soluble & Insoluble Fiber Source - 12 oz (Pack of 1)
- Spectrum Essentials Organic Ground Premium Flaxseed, 24 Oz

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**Shop now:** [https://www.desertcart.hk/products/10605144-high-potency-vitamin-c-ascorbic-acid-with-calcium-magnesium-potassium](https://www.desertcart.hk/products/10605144-high-potency-vitamin-c-ascorbic-acid-with-calcium-magnesium-potassium)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-08-10*