California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets
Each three-tablet serving lists 3 g of hydrolyzed bovine collagen and 30 mg vitamin C; the directions call for two servings daily, or 6 g collagen and six tablets. The page links an iTested product certificate, and the active cost is about $0.088 per gram.
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Our Verdict
Its linked product-specific certificate and low cost per gram narrowly outweigh the sub-10 g directed daily dose. Its much larger iHerb review volume also breaks the close quality tie with Life Extension, without overriding form or dose.
Score Breakdown
Pros & Cons
Pros
- •Product page links a product-specific iTested certificate
- •Low active cost of about $0.088 per gram of collagen
- •Fully disclosed 30 mg calcium ascorbate vitamin C per serving
Cons
- •3 g per label serving and 6 g per directed day remain below the 10 g used in several generic hydrolyzed-collagen joint trials
- •Directed use requires six tablets daily
Specifications
| Collagen form | Hydrolyzed Types I and III peptides |
| Source | Bovine |
| Collagen per serving | 3 g; directions specify two servings daily |
| Branded ingredient | None |
| Other labeled actives | Vitamin C 30 mg; sodium 10 mg |
| Serving size | 3 tablets |
| Other ingredients | Stearic acid, silicon dioxide, magnesium stearate |
| Testing evidence | iTested Verified; product page links a product-specific certificate image |
Who Is This For?
Best For
- Buyers prioritizing a linked product-specific test certificate
- Buyers who prefer tablets and low cost per active gram
Not For
- Buyers unwilling to take six tablets daily
- Buyers wanting about 10 g of peptides in one serving
Where to Buy
Appears In
Customer Reviews
Alternatives to Consider
BUBS Naturals, Collagen Peptides, Unflavored, 10 oz (283 g)
BUBS Naturals
The Supplement Facts panel lists 20 g of hydrolyzed bovine Types I and III collagen peptides per scoop, with about 14 servings and no separate inactive ingredients. The exact 20 g serving is present in NSF’s current Certified for Sport listing, and the active cost is about $0.096 per gram.
NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules
NOW Foods
One capsule supplies 40 mg of UC-II standardized chicken cartilage, providing 10 mg total collagen including undenatured Type II, plus 250 mg Aquamin and 80 mg calcium. The 40 mg UC-II serving matches the dose used in cited human trials and costs about $0.0098 per mg of UC-II.
Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g)
Life Extension
One scoop lists 11.1 g of hydrolyzed Types I, II and III collagen peptides from bovine and chicken sources, with no other ingredients. That dose is close to the 10 g used in several human hydrolyzed-collagen joint trials, and the active cost is about $0.083 per gram.
Jigsaw Health, Collagen Boost, Unflavored, 21 oz (595 g)
Jigsaw Health
The label provides 17.5 g of hydrolyzed bovine collagen in a complex naming Fortigel, Fortibone and Verisol, plus 80 mg hyaluronic acid. It does not disclose the grams of each branded peptide, and its active cost is about $0.133 per gram.