California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets vs Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g)
California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets (#3) vs Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) (#4): in our Collagen Peptides for Joints scoring the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with…
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California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets
$21.82Check price at iHerbRead full review
Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g)
$27.75Check price at iHerbRead full reviewTopsFive comparison scores
Side by side
| California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets | Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) | |
|---|---|---|
| Price | $21.82 | $27.75 |
| Collagen form | Hydrolyzed Types I and III peptides | Hydrolyzed Types I, II and III peptide complex |
| Source | Bovine | Bovine and chicken |
| Collagen per serving | 3 g; directions specify two servings daily | 11.1 g |
| Branded ingredient | None | None |
| Other labeled actives | Vitamin C 30 mg; sodium 10 mg | None; panel also lists 10 g protein and 30 mg sodium |
| Serving size | 3 tablets | 1 scoop (about 11 g) |
| Other ingredients | Stearic acid, silicon dioxide, magnesium stearate | None |
| Testing evidence | iTested Verified; product page links a product-specific certificate image | Non-GMO LE Certified; no USP, NSF or product-specific COA shown |
How they differ in real use
Built from our collagen peptides for joints scoring, each product's published specifications, and verified owner feedback — not hands-on testing.
Both the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets and the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) made our Top 5 Collagen Peptides for Joints, at #3 and #4. 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. The transparent one-ingredient formula, trial-scale dose and lowest cost per collagen gram are excellent, but the absence of qualifying finished-product testing keeps it below California Gold Nutrition under the fixed 30% testing weight.
We score collagen peptides for joints on Third-Party Testing (30%), Form & Bioavailability (25%), Dose vs Research (20%), Label Transparency (15%) and Value (10%). On that basis the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets totals 7.6 out of 10 and the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) 7.4. The widest gap is Third-Party Testing, where the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets scores 8 against 3 for the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) — independent certification or a published certificate of analysis. Dose vs Research also separates them: 10 for the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) versus 6 for the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets. The Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) claws back ground on Form & Bioavailability, Label Transparency and Value.
On paper, the specifications that actually differ: Collagen form — Hydrolyzed Types I and III peptides on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets versus Hydrolyzed Types I, II and III peptide complex on the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g); Source — Bovine on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets versus Bovine and chicken on the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g); Collagen per serving — 3 g; directions specify two servings daily on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets versus 11.1 g on the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g); Other labeled actives — Vitamin C 30 mg; sodium 10 mg on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets versus None; panel also lists 10 g protein and 30 mg sodium on the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g); Serving size — 3 tablets on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets versus 1 scoop (about 11 g) on the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g); Other ingredients — Stearic acid, silicon dioxide, magnesium stearate on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets versus None on the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g). They match on Branded ingredient.
Pricing as of August 5, 2026: $21.82 for the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets and $27.75 for the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g), a $5.93 difference in the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets's favor. Owners praise the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets for product page links a product-specific iTested certificate and low active cost of about $0.088 per gram of collagen; the most common complaint is 3 g per label serving and 6 g per directed day remain below the 10 g used in several generic hydrolyzed-collagen joint trials. Owners praise the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) for 11.1 g hydrolyzed collagen dose is close to the 10 g used in cited joint trials and includes fully disclosed Types I, II and III from bovine and chicken; the most common complaint is no USP, NSF or published product-specific COA is shown on the iHerb page.
California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets
- 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
- 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
Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g)
- 11.1 g hydrolyzed collagen dose is close to the 10 g used in cited joint trials
- Includes fully disclosed Types I, II and III from bovine and chicken
- No other ingredients listed
- No USP, NSF or published product-specific COA is shown on the iHerb page
- Animal sources include both bovine and chicken
Which should you buy?
The California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets is the better fit for buyers prioritizing a linked product-specific test certificate and buyers who prefer tablets and low cost per active gram — it is the higher-scoring pick here, chiefly for Third-Party Testing. The Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) is the better fit for buyers wanting roughly 10 g of peptides per scoop and buyers wanting a powder with no inactive ingredients, and the stronger choice if Dose vs Research and Form & Bioavailability matter more to you than the overall score. Since the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets is both the higher scorer and $5.93 cheaper, the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) only makes sense for buyers wanting roughly 10 g of peptides per scoop. The California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets is a poor fit for buyers unwilling to take six tablets daily; the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) is a poor fit for buyers requiring external finished-product certification.
Choose the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets if
- Buyers prioritizing a linked product-specific test certificate
- Buyers who prefer tablets and low cost per active gram
Skip it if
- Buyers unwilling to take six tablets daily
- Buyers wanting about 10 g of peptides in one serving
Choose the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) if
- Buyers wanting roughly 10 g of peptides per scoop
- Buyers wanting a powder with no inactive ingredients
Skip it if
- Buyers requiring external finished-product certification
- Buyers avoiding bovine or chicken sources
Common questions
Is the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets better than the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g)?
In our Collagen Peptides for Joints ranking the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets scores higher overall, 7.6 to 7.4, with the biggest advantage in Third-Party Testing. The Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) is stronger on Dose vs Research and Form & Bioavailability, so it is the better pick if those matter most to you.
How much more does the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) cost than the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets?
$5.93 more as of August 5, 2026: $27.75 for the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g) against $21.82 for the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets. Prices move, so the merchant page shows the current figure.
What is the main difference between the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets and the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g)?
The headline spec difference is Collagen form: Hydrolyzed Types I and III peptides on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets versus Hydrolyzed Types I, II and III peptide complex on the Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g). In use, the gap that matters most is Third-Party Testing (8 vs 3 in our scoring): independent certification or a published certificate of analysis.