Life Extension, Collagen Peptides for Skin & Joints, 12 oz (343 g)
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.
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Our Verdict
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.
Score Breakdown
Pros & Cons
Pros
- •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
Cons
- •No USP, NSF or published product-specific COA is shown on the iHerb page
- •Animal sources include both bovine and chicken
Specifications
| Collagen form | Hydrolyzed Types I, II and III peptide complex |
| Source | Bovine and chicken |
| Collagen per serving | 11.1 g |
| Branded ingredient | None |
| Other labeled actives | None; panel also lists 10 g protein and 30 mg sodium |
| Serving size | 1 scoop (about 11 g) |
| Other ingredients | None |
| Testing evidence | Non-GMO LE Certified; no USP, NSF or product-specific COA shown |
Who Is This For?
Best For
- Buyers wanting roughly 10 g of peptides per scoop
- Buyers wanting a powder with no inactive ingredients
Not For
- Buyers requiring external finished-product certification
- Buyers avoiding bovine or chicken sources
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.
California Gold Nutrition, Hydrolyzed Collagen Peptides Type I & III with Vitamin C, 250 Tablets
California Gold Nutrition
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.
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.