Purchased thorne vitamin c locally. was going to refill on amazon. can the manufacturer thorne simply state whether ingredients are from china or not?

Dan, one of the reasons I buy Thorne is because the brand is highly recommended by Dr. Andrew Huberman from Standford Med. The ingredients are not from China. Headquaters are in NYC and manufacturing is in South Carolina. Hope that helps.

Is this NSF certified?

There is nothing on the label that says NSF Certified.

Ascorbic acid? so sourced from China?

The container does not specify where it is manufactured.

What are the capsules made of?

Hypromellose – also known as hydroxypropyl methylcellulose – is used to make Thorne's vegetarian capsules. Most of the HPMC Thorne uses to make their vegetarian capsules is naturally derived from wood pulp. In addition, Thorne’s vegetarian capsules are organic compliant, non-GMO, Kosher and Halal certified, vegan, and hypoallergenic.

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Thorne Vitamin C Supplement

Product ID: 812734455

Details

Brand
THORNE
Flavor
Unflavored
Item Form
Capsule
Primary Supplement Type
Vitamin C
Special Ingredients
Vitamin C

🏆Trusted by 100+ pro teams

💊90 instant-release capsules

🇺🇸Made in USA with pure ingredients

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₪177

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Description

💥 Elevate your immunity with pro-level purity and power!

INSTANT BOOST - Fast-acting vitamin C capsules for immediate immune support.
PRO GRADE PERFORMANCE - Chosen by over 100 professional teams and backed by Mayo Clinic research.
ORANGE DERIVED FLAVONOIDS - Natural antioxidant synergy for enhanced absorption and efficacy.
PURE POWER ZERO ADDITIVES - No gluten, soy, dairy, nuts, or major allergens—clean nutrition you can trust.
MILLENNIAL APPROVED WELLNESS - Non-GMO, allergen-free, and crafted for your active, health-conscious lifestyle.

Thorne Vitamin C Supplement delivers 90 instant-release capsules of pure, allergen-free vitamin C enhanced with orange-derived flavonoids. Proudly made in the USA, it’s trusted by over 100 professional sports teams and developed in partnership with the Mayo Clinic, ensuring top-tier quality and efficacy for your daily immune support.

Specifications

ASIN	B09FYFM7N3
ASIN	B09FYFM7N3
Amazon Bestseller	#131,252 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #1,852 in Vitamin Supplements
Brand Name	THORNE
Country of Origin	USA
Country of Publication	USA
Customer Reviews	4.8 4.8 out of 5 stars (3,318)
Dosage Form	Capsule
Dose Release Method	Instant Release
Flavor	Unflavored
Item Dimensions	6.6 x 6.6 x 11.4 cm
Item Form	Capsule
Item Weight	0.18 Pounds
Item model number	C154
Manufacturer	Yitmuiy
Manufacturer	Yitmuiy
Manufacturer Part Number	C154
Model Number	C154
Number of Items	1
Package Size Name	1 set
Primary Supplement Type	Vitamin C
Product Dimensions	6.55 x 6.55 x 11.43 cm; 81.65 g
Special Ingredients	Vitamin C (with orange flavonoids)
Supplement Formulation	Individual Supplement
UPC	693749012481
Unit Count	90.00 粒

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