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.
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Last reviewed September 29, 2026 by the Nutrition Reviews Editorial Team · How we review
Our verdict
The safest choice if you want a plain collagen powder: a full 20 g dose, one ingredient and NSF Certified for Sport status. The science behind collagen for skin is weaker than the marketing suggests, and the small canister is not the cheapest per gram, but few competitors match its verification.
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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.
Vital Proteins Collagen Peptides is the product most people picture when they think of collagen powder. The unflavored version contains a single ingredient, collagen peptides from grass-fed, pasture-raised bovine hide, at 20 g per four-tablespoon serving (18 g protein, 70 calories). It dissolves into coffee, tea or smoothies without adding flavor, and it is made without dairy or gluten.
Its biggest advantage is verification. NSF's Certified for Sport database lists Vital Proteins Collagen Peptides (unflavored), meaning lots are screened for banned substances and label accuracy, and the company says its manufacturing facility is NSF-certified for cGMP. That is rarer than it should be in collagen. Note that the brand also sells a separate Collagen Peptides Advanced blend with hyaluronic acid and vitamin C, which is a different formula from the one reviewed here.
The evidence for collagen itself is the main caveat. Meta-analyses report improvements in skin hydration and elasticity after about three months, but a 2025 analysis found no significant effect when it looked only at high-quality or non-industry-funded trials; joint studies show small-to-moderate benefits for osteoarthritis pain. Collagen is also an incomplete protein and should not replace other protein sources.
On Amazon the 9.33 oz canister (about 14 servings) sells for roughly $19, around $1.33 per 20 g serving, and it has 4.6 stars from nearly 70,000 ratings; on TikTok Shop the official listing shows more than 24,000 units sold. Buyers mostly praise mixability and see results in hair, skin and nails, while complaints center on value, occasional clumping or stomach upset, the lack of an amino acid profile on the label, and a California Prop 65 lead warning on the Amazon listing.
| Key ingredient | Per serving | Why it matters |
|---|---|---|
| Collagen peptides (from bovine hide) Hydrolyzed type I and III collagen; meta-analyses of skin and joint trials mostly used 8-12 weeks of daily intake. | 20 g | Hydrolyzed type I and III collagen; meta-analyses of skin and joint trials mostly used 8-12 weeks of daily intake. |
| Protein Collagen protein is incomplete, which is why the label lists 0% of the protein Daily Value. | 18 g | Collagen protein is incomplete, which is why the label lists 0% of the protein Daily Value. |
Supplement Facts
Serving Size 4 Tbsp (20 g)
Servings Per Container About 14
* Percent Daily Values are based on a 2,000 calorie diet. † Daily Value not established.
This product is manufactured in a facility that processes milk, fish, and tree nuts.
Flavors & variants
Testing & quality
Several collagen powders, including unflavored Collagen Peptides, are NSF Certified for Sport; the company says its manufacturing facility is NSF-certified for cGMP.
Goals it supports
Independent creators reviewing Collagen Peptides (Unflavored) on TikTok and YouTube.
What we like
Watch-outs
Similar products, ranked by our score.
Garden of Life
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.
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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