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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🍊 Elevate your immunity and glow game—because thriving is the new norm.

GLOW FROM WITHIN - Supports collagen production to keep your skin radiant and hair vibrant—because first impressions matter.
IMMUNE SHIELD POWER - Harness 1000mg of Vitamin C paired with citrus bioflavonoids for next-level antioxidant defense.
CLEAN PURE FORMULA - Free from gluten, dairy, soy, nuts, and more—perfect for the mindful, health-conscious professional.
DAILY WELLNESS RITUAL - One capsule a day keeps your immune system and tissue health in prime condition—effortless self-care.
SCIENCE BACKED VITALITY - Crafted by Thorne’s personalized wellness mission to extend your health span and boost everyday resilience.

Thorne Vitamin C with Flavonoids delivers 1000mg of vitamin C combined with natural citrus bioflavonoids in 90 capsules, supporting immune function, collagen production, and overall tissue health. Free from common allergens, it’s designed for adults seeking a clean, science-backed supplement to enhance daily wellness.

Reviews

A**R

Best supplement in my routine

Always thought I was getting plenty of vitamin C In my diet but I saw a huge improvement from taking these. Probably more than any supplement before (besides when I was vitamin d deficient).Saw an immediate brightening in my undereyes and my skin health has improved loads

11.08.2025

M**A

Great product

Thorne vitamins are best quality

26.05.2025

S**E

My favourite Vit C

I have tried many Vitamin C supplement and this one rose on top. Vitamin C is best taken with Biflavonoids, Thorne research have managed to mix the right amount in the formula. Immediate results were observed in terms of energy levels and on the skin.

9.04.2025

J**.

The price is too high

The price is too high compare with advisetizing

28.03.2023

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€ 98.43

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Units	90.00 Count
Storage Instructions	Store tightly sealed at room temperature.
Serving Recommendation	1 Capsules
Brand	THORNE
Format	Capsule
Age Range Description	Adult

Thorne Vitamin C with Flavonoids - Blend of Vitamin C and Citrus Bioflavonoids - Support Immune System and Collagen Production - 90 Capsules

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