What makes Thorne supplements high quality?

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.

How does Thorne test its supplements for quality?

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.

Are Thorne supplements clinically tested and safe?

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.

Why are Thorne products more expensive than other supplements?

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.

Where are Thorne supplements made and where are the ingredients sourced from?

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.

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High Potency Vitamin C - Ascorbic Acid with Calcium, Magnesium & Potassium - Healthy Immune Function & Antioxidant Support* - Third-Party Certified - Gluten, Dairy & Soy-Free - 42 Servings

Product ID: 10605144

Details

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

💊1000mg Vitamin C per serving

🔬Third-party tested for purity & potency

🦴Calcium, Magnesium & Potassium for bone & tissue support

HK$443

Duties & taxes included

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Description

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

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.

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.

Specifications

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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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HK$443

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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