
Vital Proteins
Collagen Peptides (Unflavored)
20 g of grass-fed bovine collagen peptides per serving and nothing else, NSF Certified for Sport; the TikTok Shop and Amazon bestseller that set the category.

20 g of grass-fed bovine collagen per scoop with a small probiotic dose, NSF Contents Certified and NSF Gluten-Free, at a mid-range price per gram.
Good
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Last reviewed September 29, 2026 by the Nutrition Reviews Editorial Team · How we review
Our verdict
Our pick for buyers who want independent certification without paying top dollar: 20 g collagen, NSF Contents Certified, NSF Gluten-Free and a published amino acid profile. The probiotic adds little and it does not dissolve well in cold drinks, but the fundamentals are solid.
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Our five-factor score out of 10. Factors are weighted by how much they matter to the outcome you’re paying for. Methodology
out of 10
Key ingredients at clinically studied doses, and how strong the evidence is.
Third-party testing and certifications, manufacturing standards, contaminant testing, recall history.
Cost per effective serving compared with category peers.
Taste, mixability, texture and tolerability from aggregated buyer and creator feedback.
Full label disclosure (no proprietary blends), available COAs, honest marketing.
Garden of Life Grass Fed Collagen Peptides is a well-verified, no-frills bovine collagen. One scoop provides 20 g of collagen peptides from bovine hide (18 g protein, 70 calories, 100 mg sodium) plus 250 million CFU of the probiotic Bacillus coagulans SNZ 1969, counted at expiration. The label also prints a typical amino acid profile, including about 3.7 g glycine, 2.4 g proline and 2.1 g hydroxyproline per serving.
Verification is its standout feature. NSF's official listings under NSF/ANSI 173, the standard behind NSF Contents Certified, include Garden of Life Grass Fed Collagen Peptides, meaning the label contents and contaminant limits are independently checked. The brand also carries NSF Gluten-Free certification and IGEN non-GMO testing, and Garden of Life, now part of Nestlé Health Science, has been a certified B Corporation since 2015. It is not certified for sport, so tested athletes should look elsewhere.
The probiotic is a nice extra rather than a reason to buy: the dose is small, and there is little evidence that it improves collagen outcomes. Collagen itself has modest evidence, with skin benefits that shrink in independent, high-quality trials and small-to-moderate joint benefits in osteoarthritis.
The 19.75 oz tub (about 28 servings) costs about $33, roughly $1.17 per 20 g serving or $0.59 per 10 g of collagen, between Orgain and Vital Proteins. It rates 4.5 stars from more than 17,000 buyer ratings. Buyers report that it dissolves well in coffee but not in cold drinks, opinions on taste vary, and a scoop is included.
| Key ingredient | Per serving | Why it matters |
|---|---|---|
| Collagen Peptides (from Bovine Hide) Grass-fed, pasture-raised type I and III collagen. | 20 g | Grass-fed, pasture-raised type I and III collagen. |
| Bacillus coagulans SNZ 1969 Spore-forming probiotic counted at time of expiration; a small add-on. | 250 million CFU (2.5 mg) | Spore-forming probiotic counted at time of expiration; a small add-on. |
| Glycine From the label's typical amino acid profile. | 3,716 mg | From the label's typical amino acid profile. |
Supplement Facts
Serving Size 1 Scoop (About 20 g)
Servings Per Container About 28
* Percent Daily Values are based on a 2,000 calorie diet. † Daily Value not established.
Manufactured in a facility that also processes egg, milk, soy, wheat, fish, tree nuts and sesame.
Testing & quality
SPORT protein products are listed in NSF's Certified for Sport database; many products are USDA Organic and Non-GMO Project Verified.
Goals it supports
Independent creators reviewing Grass Fed Collagen Peptides on TikTok and YouTube.
What we like
Watch-outs
Similar products, ranked by our score.

Vital Proteins
20 g of grass-fed bovine collagen peptides per serving and nothing else, NSF Certified for Sport; the TikTok Shop and Amazon bestseller that set the category.

Sports Research
Single-ingredient bovine collagen with a full amino acid profile on the label, NSF Certified Gluten-Free; 11 g scoops make the dose flexible, and it is a TikTok Shop staple.

The budget pick: 20 g of grass-fed bovine collagen per serving for roughly a dollar on Amazon, with a full amino acid profile, though it lacks a named third-party certification.

Ancient Nutrition
A '10 types of collagen' blend with vitamin C and a probiotic; heavily marketed, but the collagen sources sit in an undisclosed blend and it costs more per gram.

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