🏅 California Gold Nutrition: iHerb's house brand — history, iTested and price
How the premium private label of the world's largest online retailer became one of the most bought in the world
California Gold Nutrition (abbreviated CGN) is the premium private-label brand of the iHerb platform, launched in 2013. The brand covers vitamins, minerals, omega-3, protein, collagen, superfoods and sports nutrition.
History: iHerb and the 2013 launch
To understand CGN, you have to start with its parent. iHerb was founded in 1996 in California (headquartered in Irvine) by Iranian immigrant Feredas Fedgar. It all began with a personal story: his father suffered from depression and found relief in St. John's Wort, but the remedy was hard to get in California. So Fedgar launched an online store selling St. John's Wort — and quickly saw its global potential: the first orders came from Argentina, Iceland and Israel.
By the early 2010s, iHerb was shipping products from roughly 1,800 brands and had accumulated huge data on which categories sell at which prices. A logical step was to create its own brand without retailer markup. In 2009 iHerb began launching its own house brands, and in 2013 California Gold Nutrition was launched as the flagship house brand — the retailer's direct answer to the question "why are supplements so expensive?".
| Year | Event |
|---|---|
| 1996 | iHerb founded in California |
| 2009 | iHerb starts launching own house brands |
| 2013 | Launch of California Gold Nutrition |
| 2018 | iHerb surpasses $1 billion in sales |
| 2022 | iHerb surpasses $2 billion in sales |
| 2025 | Launch of CGN BEAUTY line for hair care |
| Today | iHerb: 11M+ customers, 180+ countries, 19 languages |
Manufacturing model and partners
The key feature of CGN: iHerb is a retailer, not a manufacturer. The brand does not own its own plants but contracts third-party production facilities that meet cGMP standards (current Good Manufacturing Practices per 21 CFR Part 111 of the US FDA).
- Contract manufacturing at certified facilities (NSF, GMP or UL).
- iHerb oversees ingredient selection, dosing and finished-product specifications.
- All products are quality tested in the United States.
- Global delivery via 7 climate-controlled fulfillment centers in the US and Asia.
iTested testing program
The main "signature" element of CGN is the iTested program. Products are sent to independent labs — Eurofins, Alkemist Labs and ABC Testing — for analysis.
- Confirmation of ingredient identity.
- Verification of the Supplement Facts / Nutrition Facts panel.
- Microbial analysis and heavy metal testing.
- Certificates of analysis are published on the product page on iHerb.
- Products are retested roughly every 6 months.
Ingredients and forms
CGN's assortment focuses on well-researched ingredient forms. Starting with basics, the brand expanded methodically, adding chelated forms and branded ingredients.
| Category | Examples |
|---|---|
| Vitamins and minerals | Vitamin D3, vitamin C (Gold C), chelated magnesium Albion TRAACS, B-complex |
| Fatty acids | Fish oil, omega-3 TG (triglyceride form), kd-pur concentrate |
| Protein | Whey isolate, plant protein |
| Collagen | Hydrolyzed collagen peptides |
| Botanical and branded | Turmeric Curcumin C3 Complex, curcumin + BioPerine, krill oil |
Key products
Popular brand products most commonly bought on iHerb.
| Product | Purpose |
|---|---|
| Omega-3 Fish Oil TG | Fatty acids in triglyceride form |
| Vitamin D3 | Vitamin D for immunity and bones |
| Gold C Vitamin C | Vitamin C (ascorbic acid) |
| Whey Protein | Whey protein for sports |
| Collagen Peptides | Hydrolyzed collagen for skin and joints |
| CoQ10 Ubiquinone | Coenzyme Q10 for cellular energy |
| Probiotic | Probiotics for digestion |
| Antarctic Krill Oil | Omega-3 from krill |
Price and value
CGN is positioned as "premium at an affordable price". The private-label model allows offering well-researched ingredients cheaper than most branded alternatives.
Pros and cons
| Pros | Cons |
|---|---|
| Great value for money | iTested platform operated by brand owner |
| Wide range (300+ products) | Main sales through iHerb |
| Public certificates of analysis | Contract manufacturing, no own plants |
| Branded ingredients (Albion, BioPerine, C3) | Some packaging recalls occurred |
| cGMP production, US testing | Niche expertise lags specialists |
What is California Gold Nutrition?
iHerb's premium private-label brand launched in 2013, focused on affordable quality.
Who owns CGN?
The brand of iHerb — the world's largest online retailer of vitamins and supplements.
When was CGN launched?
In 2013. The parent company iHerb was founded in 1996.
Does the brand test its products?
Yes, through the iTested program — independent labs Eurofins, Alkemist and ABC Testing, results are published.
What is iTested?
A program verifying products via independent labs for purity, label accuracy and lack of contaminants.
Does CGN own factories?
No. iHerb uses contract manufacturing at certified cGMP/NSF/UL facilities.
What products does CGN have?
Omega-3, vitamin D3, vitamin C, protein, collagen, CoQ10, probiotics, krill oil and more.
Is the quality of CGN good?
Good for its price segment, with public testing. But iTested is run by the brand owner.
Is CGN expensive?
Usually more affordable than many brands at comparable composition thanks to the private-label model.
Where to buy CGN?
Main sales through iHerb; products are also available on other platforms, including Amazon.
Are there any downsides?
iTested is run by the owner, contract manufacturing and dependence on iHerb as the main channel.