US
THORNE

THORNE Vitamin C with Citrus Bioflavonoids 500 mg

  • 500 mg vitamin C with citrus bioflavonoids
  • 90 capsules, 90 servings
  • Unflavored capsule
  • NSF Contents Certified
  • Gluten free, for adults

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A simple vitamin C capsule paired with citrus bioflavonoids and carrying an NSF contents certification. The pack is a three month supply at one capsule a day.

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ASIN: B09FYFM7N3Category: Vitamin C Supplements

Overview

Taking this capsule daily supplies vitamin C alongside bioflavonoids drawn from oranges. THORNE lists immune support, skin, hair and nails among the benefits and describes the contents as certified.

The reason to look at it is the third party certification and the citrus bioflavonoid pairing in an unflavored capsule. The limitation is that the listing gives no directions, so how many capsules count as a serving is taken from the label.

Who it's for

An adult looking for a quiet daily vitamin C with a third party check will find the capsule format straightforward. People who prefer flavored chews, or who need doses above the stated amount, should look at other forms.

Pros and cons

Pros
  • NSF Contents Certified
  • Citrus bioflavonoids included
  • Ninety capsule supply
Cons
  • Directions not listed
  • Moderate vitamin C dose
  • Adult age range only

Performance notes

Vitamin C is water soluble, so the body uses what it needs and passes the rest. Bioflavonoids are plant compounds from citrus that are often paired with it, and the capsule shell dissolves in the stomach to release both. Because the listing states no directions, the label governs how many capsules to take.

Specifications

BrandTHORNE
Dimensions & fit
Item weight2.88 ounces
Item dimensions2.58 x 2.58 x 4.5 inches
Capacity & performance
Age Range DescriptionAdult
Construction & materials
ColorOrange
Material Type Freeen_AE
Included components
Unit Count90 Count
Other details
FlavorUnflavored
Primary Supplement TypeVitamin C
Diet TypeGluten Free
Vitamin c500 mg
Item FormCapsule
Product BenefitsImmune Support, Skin, Hair & Nails
Special IngredientsCitrus Bioflavanoids
CertificationNSF Contents Certified

Frequently asked questions

Does THORNE Vitamin C 500 mg work with other vitamin C products?

The listing says nothing about combining it with other supplements. If you take several, ask a doctor or pharmacist.

What does NSF Contents Certified mean for this product?

The listing states NSF Contents Certified among its highlights, meaning a third party has checked the contents. It gives no further detail.

Is it a chewable?

No. The item form is capsule, and the flavor is listed as unflavored.