NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules vs California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets
NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules (#2, best premium) vs California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets (#3): in our Collagen Peptides for Joints scoring the NOW Foods, UC-II Joint Health with Undenatured…
We may earn a commission when you buy through our links. Prices and availability shown are accurate as of Aug 5, 2026 and are subject to change; the merchant's price at purchase applies.
NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules
$23.5Check price at iHerbRead full review
California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets
$21.82Check price at iHerbRead full reviewTopsFive comparison scores
Side by side
| NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules | California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets | |
|---|---|---|
| Price | $23.5 | $21.82 |
| Collagen form | Undenatured Type II within standardized UC-II chicken cartilage | Hydrolyzed Types I and III peptides |
| Source | Chicken sternum cartilage | Bovine |
| Collagen per serving | 40 mg UC-II material, providing 10 mg total collagen | 3 g; directions specify two servings daily |
| Branded ingredient | UC-II; Aquamin | None |
| Other labeled actives | Aquamin 250 mg; calcium 80 mg | Vitamin C 30 mg; sodium 10 mg |
| Serving size | 1 capsule | 3 tablets |
| Other ingredients | Hypromellose, microcrystalline cellulose, corn starch, potassium chloride, stearic acid, silicon dioxide | Stearic acid, silicon dioxide, magnesium stearate |
| Testing evidence | GMP Quality Assured and company quality-tested; no USP, NSF or product-specific COA shown | iTested Verified; product page links a product-specific certificate image |
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 NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules and the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets made our Top 5 Collagen Peptides for Joints, at #2 (best premium) and #3. It ranks second because its joint-specific form and exact trial-matched dose are stronger than the lower-ranked peptide products, despite weak qualifying third-party evidence. One-capsule dosing and a low cost per researched dose reinforce the placement. 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.
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 NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules totals 7.7 out of 10 and the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets 7.6. 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 NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules — independent certification or a published certificate of analysis. Dose vs Research also separates them: 10 for the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules versus 6 for the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets.
On paper, the specifications that actually differ: Collagen form — Undenatured Type II within standardized UC-II chicken cartilage on the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules versus Hydrolyzed Types I and III peptides on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets; Source — Chicken sternum cartilage on the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules versus Bovine on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets; Collagen per serving — 40 mg UC-II material, providing 10 mg total collagen on the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules versus 3 g; directions specify two servings daily on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets; Branded ingredient — UC-II; Aquamin on the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules versus None on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets; Other labeled actives — Aquamin 250 mg; calcium 80 mg on the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules versus Vitamin C 30 mg; sodium 10 mg on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets; Serving size — 1 capsule on the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules versus 3 tablets on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets.
Pricing as of August 5, 2026: $23.5 for the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules and $21.82 for the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets, a $1.68 difference in the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets's favor. Owners praise the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules for 40 mg UC-II standardized chicken cartilage in one capsule and label dose matches the 40 mg daily dose used in cited human trials; the most common complaint is no USP, NSF or published product-specific certificate of analysis is shown on the listing. 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.
NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules
- 40 mg UC-II standardized chicken cartilage in one capsule
- Label dose matches the 40 mg daily dose used in cited human trials
- Low $0.39 cost per complete label serving
- No USP, NSF or published product-specific certificate of analysis is shown on the listing
- Contains microcrystalline cellulose, corn starch, potassium chloride, stearic acid and silicon dioxide in addition to the capsule
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
Which should you buy?
The NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules is the better fit for buyers specifically choosing a 40 mg UC-II format and buyers who prefer one capsule per day — it is the higher-scoring pick here, chiefly for Dose vs Research and Form & Bioavailability. 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, and the stronger choice if Third-Party Testing matters more to you than the overall score. If the $1.68 saving matters more than Third-Party Testing, the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets is the better value. The NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules is a poor fit for vegetarians or buyers avoiding chicken-derived ingredients; 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.
Choose the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules if
- Buyers specifically choosing a 40 mg UC-II format
- Buyers who prefer one capsule per day
Skip it if
- Vegetarians or buyers avoiding chicken-derived ingredients
- Buyers requiring USP, NSF or a public product-specific COA
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
Common questions
Is the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules better than the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets?
In our Collagen Peptides for Joints ranking the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules scores higher overall, 7.7 to 7.6, with the biggest advantage in Third-Party Testing. The California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets is stronger on Third-Party Testing, so it is the better pick if that matters most to you.
How much more does the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules cost than the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets?
$1.68 more as of August 5, 2026: $23.5 for the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules 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 the extra buys is mostly Third-Party Testing — 8 versus 3 in our scoring.
What is the main difference between the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules and the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets?
The headline spec difference is Collagen form: Undenatured Type II within standardized UC-II chicken cartilage on the NOW Foods, UC-II Joint Health with Undenatured Type II Collagen, 60 Capsules versus Hydrolyzed Types I and III peptides on the California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets. In use, the gap that matters most is Third-Party Testing (3 vs 8 in our scoring): independent certification or a published certificate of analysis.