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Where is the Shaklee Sustained Release Vitamin C made?

Who owns the brand, where it's manufactured, and where its materials come from — and how much of it is made in United States.

The Shaklee Sustained Release Vitamin C is manufactured in United States (100%). The brand is owned by Shaklee Corporation (United States). Its Local Score for United States is 93/100 (Homegrown). Last verified 6 Aug 2026.

Origin report

Cached — Served from the shared 24h cache

Shaklee Sustained Release Vitamin C

Shaklee · supplement · traced 6 Aug 2026

Homegrown

93 of 100 points for 🇺🇸 United States — combining who owns the brand, where it's made, and where the materials come from.

Brand ownership
20/20 pts
Manufacturing
55/55 pts
Materials
18/25 pts
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Shaklee’s sustained-release vitamin C is a Shaklee-branded supplement, apparently U.S.-origin, formulated around corn-derived vitamin C with additional botanical and release-system ingredients.

01Brand ownership

Reported — Credible source(s), not independently corroborated

Shaklee Corporation — United States

Shaklee -> Shaklee Corporation

02Manufacturing

Reported — Credible source(s), not independently corroborated
  • United StatesRetail listings and Shaklee product pages identify the product as U.S.-origin; no alternate manufacturing country was found in the provided evidence.100%

03Materials

Inferred — Reasonable deduction from indirect evidence
  • vitamin C from corn-derived sourceUnited States70%
  • bioflavonoids / hesperidin / rose hips / tablet release gums and waxesunknown30%

04Route

  1. Materials
    🇺🇸✳
  2. Production
    🇺🇸
  3. Ownership HQ
    🇺🇸

05Sources

  1. 01Shaklee Sustained Release Vita-C product page
  2. 02Vita-C 500 SRT product sheet
  3. 03Shaklee Malaysia product guide page 59
  4. 04Watsons Singapore listing for Shaklee Sustained Release Vita-C 500Mg

How we research and score →

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Frequently asked

Where is the Shaklee Sustained Release Vitamin C made?

The Shaklee Sustained Release Vitamin C is manufactured in United States (100%).

Who owns Shaklee?

Shaklee is owned by Shaklee Corporation, based in United States (ownership chain: Shaklee -> Shaklee Corporation).

What is the Shaklee Sustained Release Vitamin C made of?

The Shaklee Sustained Release Vitamin C is made from vitamin C from corn-derived source (from United States), bioflavonoids / hesperidin / rose hips / tablet release gums and waxes (from unknown).

Is the Shaklee Sustained Release Vitamin C made in United States?

Largely, yes. Its Local Score for United States is 93/100 (Homegrown), combining brand ownership, manufacturing, and material origins.