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Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules

by California Gold Nutrition

50 reviews analysed · 1 sources · Last verified: 28 Mar 2026 · Price data: 19 Feb 2026 · Confidence: 17% · Reviewed by Bart, Health & Tech Enthusiast
Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules
79
Overall Score
Good

Compare Prices

Verdict: Good 🥈 #2 in Vitamin C View Vitamin C Rankings →

1,000 mg of pure ascorbic acid per capsule, with just a hypromellose capsule and magnesium stearate — the formula is about as stripped-back as it gets. Best for People who want a no-frills 1,000 mg vitamin C without proprietary blends or unnecessary additives and Vegetarians seeking a plant-based capsule format.

According to the AIScored 0–100 scoring system, Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules by California Gold Nutrition scores 79.0/100, ranking #2 out of 19 products in Vitamin C (2026). Strongest category: Side Effects (90.0/100). Weakest: Certifications (45.0/100).

Data quality note: this page currently has limited evidence coverage (low review/source volume or lower confidence). Treat this as directional and cross-check with primary sources.

Is Gold C®, USP-Grade Vitamin C, 1,... worth buying?

“California Gold Nutrition's Gold C® scores 84/100 with proper USP-grade certification and iTested verification, so you're getting the real thing at 1,000 mg per capsule. What's genuinely impressive is how gentle it is on your stomach—most vitamin C products give you heartburn, but this one doesn't.”

— AIScored Editorial Team, Mar 2026

What Do Reviewers Say About Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules?

Sample excerpts from currently available source material used in this product analysis.

"Vitamin C. I often order this product. It's very high quality and easy to use. The ingredients are perfect. It's great for winter, especially for health. The packaging is good, as is the form. My immune system says thank you. The results ar..."

Iherb • iHerb Customer

"I recently started taking vitamin C tablets and want to share my impressions. Firstly, it's convenient that one tablet contains a sufficient dose to support immunity and overall well-being. The tablets are easy to swallow, don't have an unp..."

Iherb • iHerb Customer

"How to choose the right Vitamin C? 🍊💊. Many people see so many types of Vitamin C and don't know the difference, but it's simple: 🔹 Make sure it says USP or GMP certified; this means the product is pure and of guaranteed quality. 🔹 Choose a..."

"My experience with the product. California Gold Nutrition Gold C is an excellent product for immune support and daily energy. I've been using it for a while and have found my energy levels have increased and my immune system has improved, e..."

"Until now, I have not seen anything. I do not know, maybe it is working in the body without my knowledge. The quality is excellent. The ingredients are excellent. The quantity is excellent. The immunity is excellent. There is no acidity. Th..."

How does Gold C®, USP-Grade Vitamin C, 1,000 m... score?

Detailed score breakdown and key findings from our analysis of 50 reviews across 1 source.

Effectiveness How well the product works based on user reviews
80.0/100
Good
Ingredient Quality Clean label, bioavailable forms, minimal fillers
83.0/100
Good
Value for Money Price relative to quality and quantity
82.0/100
Good
Side Effects Profile Higher = fewer/milder side effects reported
90.0/100
Excellent
Certifications & Testing Third-party testing, GMP, and quality certifications
45.0/100
Below Average
Overall Score Weighted overall recommendation
79.0/100
Good

Pros

  • +Exceptionally well-tolerated — most reviewers report no stomach acidity or discomfort, even taken on an empty stomach
  • +Clean, minimal formula: pure ascorbic acid, hypromellose capsule, magnesium stearate — nothing unnecessary
  • +1,000 mg dose is practical for meaningful daily support without pill-splitting
  • +Consistent immune support reported across many reviews, particularly during cold season
  • +Good value overall; free from gluten, GMOs, soy, and major allergens

Cons

  • -Ascorbic acid is the standard form — not buffered or esterified, which users with genuinely sensitive stomachs might want
  • -No independently verified third-party testing confirmed by product specs, despite iTested claims on packaging
  • -60-capsule size lasts only two months at one daily — higher per-unit cost than the 240-capsule option
  • -A handful of reviewers note the capsules run on the larger side, though most find them manageable

Best For

People who want a no-frills 1,000 mg vitamin C without proprietary blends or unnecessary additives Vegetarians seeking a plant-based capsule format Anyone who has had stomach trouble with other vitamin C supplements — this form is widely well-tolerated Daily immune support during autumn and winter

Watch Out

  • !Those with a history of gastric sensitivity to acidic supplements may prefer a buffered form such as sodium ascorbate — a few reviewers still recommend taking with food
  • !Product packaging claims iTested verification, but product specs do not confirm third-party testing — the quality claim is unverified externally

What is Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules?

Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules is a vitamin c product by California Gold Nutrition, scoring 79.0/100 on AIScored.

  • Product overview Description Helps support immune health and overall wellness* Suitable for vegetarians Formulated without gluten, GMOs or soya California Gold Nutrition® Gold C® features 1000 mg of USP-grade vitamin C in veggie capsules.
  • It is triple-quality tested to ensure that it meets or exceeds strict quality standards.
  • iTested Verified Suggested use Take one capsule per day, with or without food.
  • Best when taken as directed by a qualified healthcare professional.
  • Other ingredients Main ingredients Vitamin C (as ascorbic acid) Other ingredients Modified cellulose (hypromellose veggie capsule) and magnesium stearate.
  • Not manufactured with milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soya, sesame or gluten.
  • Produced in an FDA-registered, third-party audited and cGMP-compliant facility that may process other products containing these allergens or ingredients.
  • Warnings Keep out of reach of children.
  • Consult a doctor, pharmacist, naturopath or other qualified healthcare professional prior to taking food supplements.
  • Sealed for your protection.
  • Do not use if seal is missing or broken.
  • Store in a cool, dry place.
  • Protect from heat, light and moisture.
  • The aroma, colour and consistency may vary.
  • Colour shift is normal and cannot be avoided.
  • Disclaimer While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site.
  • Although items may occasionally be despatched with alternative packaging, freshness is always guaranteed.
  • We recommend that you read labels, warnings and directions of all products before use and do not rely solely on the information provided by iHerb.
  • This website has been machine translated as a courtesy to customers.
  • iHerb does not represent or warrant that the translations are complete or error-free and iHerb is not responsible for any translation errors or omissions.
  • Supplement information Serving Size: 1 Capsule Servings.

Is Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules Independently Tested?

?

No Third-Party Testing Visible

We could not find evidence of independent third-party testing for this product. This doesn't mean it's unsafe, but independent verification provides additional assurance.

How We Score Supplements

Our methodology analyses review data, ingredient science, and product information, then scores each product on a 0-100 scale across evidence-based categories:

1

Effectiveness

How well the product delivers its claimed benefits, based on reviews and ingredient evidence.

2

Ingredient Quality

Bioavailable forms, clinically effective dosages, clean label, minimal fillers.

3

Value for Money

Price relative to ingredient quality, dosage count, and effectiveness.

4

Side Effects Profile

Higher score = fewer side effects. 100 means virtually no adverse reactions reported.

5

Certifications & Testing

Third-party lab testing, GMP certification, and independent quality verification.

6

Overall Score

Weighted combination of all factors. Our bottom-line recommendation.

Price History (90 days)

Quick Facts

Vegan
No

Frequently Asked Questions

Is Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules worth buying in 2026?
Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules scores 79.0/100 in our analysis, based on 50 reviews. 1,000 mg of pure ascorbic acid per capsule, with just a hypromellose capsule and magnesium stearate — the formula is about as stripped-back as it gets. Reviewers (50 reviews, almost entirely 5-star) repeatedly highlight how well it sits on the stomac...
What is the best price for Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules in the UK?
The best price we found is £5.08 at iHerb. We compare prices from 1 UK retailer and update them regularly.
What are the pros and cons of Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules?
Pros: Exceptionally well-tolerated — most reviewers report no stomach acidity or discomfort, even taken on an empty stomach. Clean, minimal formula: pure ascorbic acid, hypromellose capsule, magnesium stearate — nothing unnecessary. 1,000 mg dose is practical for meaningful daily support without pill-splitting. Cons: Ascorbic acid is the standard form — not buffered or esterified, which users with genuinely sensitive stomachs might want. No independently verified third-party testing confirmed by product specs, despite iTested claims on packaging. 60-capsule size lasts only two months at one daily — higher per-unit cost than the 240-capsule option.
Is Gold C®, USP-Grade Vitamin C, 1,000 mg, 60 Veggie Capsules third-party tested?
We could not find evidence of third-party testing for this product. While this does not mean the product is unsafe, independent testing provides additional quality assurance.

Disclaimer: AIScored provides research-backed summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.

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