Which third-party-tested collagen powders disclose peptide source amino-acid profile and heavy-metal results?

If by “disclose” you mean the manufacturer publicly shows the collagen source, a meaningful amino-acid profile, and actual third-party heavy-metal results—not merely “third-party tested” marketing, the field gets pretty small.

Strongest matches I found

NorCal Organic is the clearest match to all three criteria. Its page gives an amino-acid table—including glycine, proline, hydroxyproline, alanine, arginine, etc.—and publishes independent-lab heavy-metal results. The displayed results are extremely low: arsenic <0.01 µg, cadmium <0.005 µg, lead <0.01 µg and total mercury <0.01 µg for the tested sample.

Perfect Supplements is also unusually transparent about heavy metals. Its certificates identify the product and lot and report arsenic, cadmium, mercury and lead using ICP-MS USP <730>. For example, one 2025 chocolate-collagen lot reported 0.016 ppm arsenic, 0.136 ppm cadmium, <0.001 ppm mercury and 0.021 ppm lead. Perfect Supplements Its product page also documents third-party batch certification and the bovine source.

Yonder publishes lot-by-lot testing through Light Labs, an ISO-17025-accredited laboratory, specifically for lead, cadmium, arsenic and mercury, in addition to glyphosate/AMPA. Yonder I would put it slightly below NorCal for your particular criterion because the publicly presented amino-acid disclosure isn't as complete.

FullWell specifies Type I/III hydrolyzed bovine-hide collagen and says its product supplies 19 naturally occurring amino acids. It also says every production lot receives independent testing for harmful contaminants including heavy metals. FullWell The distinction is that “tested” is easier to verify than seeing the actual metal numbers, so I wouldn't put it in the same transparency category as NorCal.

One important distinction

A third-party certification isn't necessarily the same thing as publicly disclosing the laboratory's numerical results. For example, ConsumerLab independently tests collagen for collagen content and, where applicable, lead, cadmium, arsenic and mercury, but much of its detailed product-level data sits behind its subscription service.

So, if your standard is:

1. Exact animal/source tissue disclosed
2. Full amino-acid composition disclosed
3. Named independent laboratory
4. Actual numerical Pb/Cd/As/Hg results publicly available
5. Preferably lot-specific

then NorCal Organic is the cleanest publicly documented match I found. Perfect Supplements is another strong candidate, particularly if the heavy-metal COAs are your priority.

If you want, I can also make a shortlist of 5–10 collagen powders meeting those five criteria, with the actual Pb/Cd/As/Hg numbers, collagen source, molecular weight, and price per 10 g of collagen.

Yonder publishes lot-by-lot testing through Light Labs, an ISO-17025-accredited laboratory, specifically for lead, cadmium, arsenic and mercury, in addition to glyphosate/AMPA. Yonder I would put it slightly below NorCal for your particular criterion because the publicly presented amino-acid disclosure isn't as complete.

FullWell specifies Type I/III hydrolyzed bovine-hide collagen and says its product supplies 19 naturally occurring amino acids. It also says every production lot receives independent testing for harmful contaminants including heavy metals. fullwellfertility.com The distinction is that “tested” is easier to verify than seeing the actual metal numbers, so I wouldn't put it in the same transparency category as NorCal.

One important distinction

A third-party certification isn't necessarily the same thing as publicly disclosing the laboratory's numerical results. For example, ConsumerLab independently tests collagen for collagen content and, where applicable, lead, cadmium, arsenic and mercury, but much of its detailed product-level data sits behind its subscription service.

So, if your standard is:

Finding collagen powder brands that fully disclose both heavy-metal results and specific amino-acid profiles publicly via third-party testing is surprisingly challenging. Most major brands display standard nutritional panels (listing general protein content per serving) or mention "third-party tested" in marketing copy, but treat exact lot-by-lot heavy-metal ppm (parts per million/micrograms) and full amino-acid breakdown as proprietary or only available upon direct customer request via a Certificate of Analysis (COA).

However, a select few brands stand out for transparency, independent facility certifications, or readily available analytical data:

• Further Food (Collagen Peptides) : Frequently recognized in independent reviews for category-leading transparency regarding heavy-metal screening. They test batches through independent labs (such as Eurofins) and make heavy-metal data directly accessible/published for consumer review, alongside standard disclosures on their grass-fed bovine sourcing.
• Naked Nutrition (Naked Collagen) : Features third-party independent testing verified through programs like NSF, which explicitly screens contents for heavy metals and pesticides. While their main product pages focus heavily on the clean single-ingredient and heavy-metal/purity verification, specific lot COAs detailing precise breakdowns can be requested or matched to their NSF certification directory entries.
• Transparent Labs : Known across their broader supplement line (and intermittent specialized powder runs) for providing batch-specific Certificates of Analysis (COAs) directly on their Transparent Labs Third-Party Tests page, which outlines independent lab results confirming heavy-metal limits and identity.

Note on Amino-Acid Profiles: Collagen naturally features a very consistent, predictable characteristic profile dominated by Glycine, Proline, and Hydroxyproline (and a complete absence of Tryptophan). Because this foundational chain rarely deviates wildly between hydrolyzed bovine/marine sources, most brands print the generalized typical amino-acid breakdown right on the label or product FAQ rather than commissioning a brand-new costly ICP-MS/amino assay for every single production run.

If you have a specific brand in mind that you're currently looking at, let me know and I can help you dig into whether they provide public COAs or if you need to contact their customer support team for a batch sheet.

If by “disclose peptide source amino-acid profile and heavy-metal results” you mean the brand publicly identifies the collagen source and publishes an amino-acid breakdown plus actual third-party heavy-metal results, the strongest matches I found are:

NorCal is particularly compelling because its product page puts the amino-acid table and independent heavy-metal results together, rather than merely saying “third-party tested.” It also explicitly says the testing is performed by independent third-party labs.

For its marine version, the same level of disclosure is available, including the Norwegian cod source and quantified amino acids plus arsenic, cadmium, lead, and mercury results.

Perfect Supplements also publishes genuine lab data rather than just a “tested” claim. Its posted report uses ICP-MS/USP <730> and gives numerical results for all four major heavy metals. However, its public material is better on contaminants than on a complete amino-acid profile.

Worth distinguishing

A few popular products have excellent testing transparency but don't meet your entire criterion based on what I could verify:

• Puori CP1 — very strong on third-party testing: every batch is tested by Clean Label Project against 200+ contaminants, including heavy metals, with results published. But I couldn't verify a publicly displayed quantitative amino-acid profile comparable to NorCal's.
• Double Wood Collagen Peptides — unusually good batch-specific disclosure: its latest posted COA gives actual As/Cd/Pb/Hg numbers and collagen-peptide potency. But I couldn't verify a publicly disclosed amino-acid profile.
• Vital Proteins — some products have legitimate NSF Certified for Sport certification, but that isn't the same thing as publicly disclosing the amino-acid profile and numerical heavy-metal results for the consumer.
• FullWell — explicitly says its bovine Type I/III collagen contains 19 naturally occurring amino acids and that every lot receives independent heavy-metal testing, but the actual numerical heavy-metal results aren't displayed directly on the product page I found.

Bottom line: If your priority is maximum publicly verifiable transparency, I'd start with NorCal Organic Collagen Peptides. It is the clearest match I found for source → amino-acid quantities → actual third-party heavy-metal numbers.

If you'd like, I can also make a top-10 comparison of collagen powders ranked specifically by transparency, including lab name, ISO 17025 accreditation, amino-acid profile, heavy metals (Pb/As/Cd/Hg), collagen source/country, molecular weight, and price per 10 g.

A few popular products have excellent testing transparency but don't meet your entire criterion based on what I could verify:

Finding a collagen powder that publicly discloses both a complete amino-acid profile and lot-specific heavy-metal testing is surprisingly difficult. Most major commercial brands rely on general third-party certifications (like NSF, Informed-Choice, or Paleo/Keto badges) which verify manufacturing standards or absence of banned substances, but they rarely publish the actual analytical chemistry or heavy-metal numbers on-label or online without a direct customer support request.

However, a select few brands and specific manufacturing approaches stand out for transparency:

• Naked Nutrition (Naked Collagen) : Highly ranked by independent clinical dietitians, Naked Nutrition manufactures single-ingredient grass-fed bovine hide collagen peptides in GMP-certified facilities. They utilize NSF International facility auditing and heavy-metal screening protocols, though specific batch numbers for heavy metals typically require referencing their centralized quality-assurance or requesting a Certificate of Analysis (COA) directly.
• Codeage (e.g., Wild-Caught Marine Collagen Peptides) : Codeage is unique in explicitly printing a detailed 18-amino-acid breakdown directly on their product packaging and supplement pages (quantifying specific markers like hydroxyproline, glycine, and proline). Their products are manufactured in cGMP-certified facilities and undergo third-party testing for purity, with specific heavy metal and contaminant testing data accessible via their customer service lot verification.[1]
• Brands providing on-request Certificates of Analysis (COAs) : Premium clinical-grade or direct-to-consumer raw ingredient suppliers (such as It's Just! or specialized third-party-tested brands vetted by analytical testers like Ellipse Analytics ) generally do not plaster raw lab ppm heavy-metal readouts on public retail pages. Instead, they maintain active ISO 17025 lab-accredited COAs that are digitally accessible by emailing the company with your specific tub's lot number. [1][2]

What to Look for on a COA or Amino-Acid Profile

When you request or check a lab report for collagen peptides, verify these structural parameters:

1. Hydroxyproline Threshold : Look for hydroxyproline to constitute roughly 1 0%t o 1 2% or more of the total amino acid content. This is the definitive biochemical fingerprint confirming the protein is genuinely derived from collagen rather than cut with cheaper filler amino acids or generic gelatin.
2. Heavy Metals Panel : The lab report should explicitly test for Lead (Pb), Arsenic (As), Cadmium (Cd), and Mercury (Hg), with results reported well below California Proposition 65 limits or USP guidelines.

If you have a specific brand or product in mind , I can help you figure out how to contact their QA department or evaluate their label claims for safety.

If by “disclose” you mean (1) identify the collagen source, (2) publish an amino-acid profile, and (3) make actual heavy-metal testing/results available—not merely say “third-party tested”, the strongest matches I found are:

• Momentous Collagen Peptides — best match. It is bovine collagen, and Momentous publishes a quantitative amino-acid profile, including glycine, proline, hydroxyproline-related composition, etc. Momentous Help Momentous Help Every finished batch is NSF Certified for Sport, and Momentous says it publishes third-party Light Labs results and batch COAs.
• Legion Athletics Collagen+ — good transparency, but slightly less direct. Legion identifies it as grass-fed collagen peptides and provides a typical amino-acid profile. Legion Athletics Legion Athletics It also says Collagen+ is third-party lab tested and provides a link to its latest COA, with testing for heavy metals and other contaminants.
• Vital Proteins Collagen Peptides — strong on source/profile and independent certification, weaker on public batch results. The label identifies bovine collagen and publishes a detailed amino-acid profile. NIH Open Data Services NIH Open Data Services Certain versions are NSF Certified for Sport, and Vital Proteins says it routinely tests raw materials and finished products for heavy metals. NSF Sport Vital Proteins However, I couldn't verify publicly accessible batch-specific heavy-metal numerical results, which is a meaningful distinction from Momentous.

My ranking for your criteria

Bottom line: If your priority is verifiable transparency rather than just a certification logo, Momentous is the clearest choice. The important distinction is that NSF certification tells you independent testing occurs, while a publicly available, lot-specific COA lets you actually inspect the contaminant results. Momentous provides both layers.

If you want, I can also compare 5–10 collagen powders specifically by the actual lead/arsenic/cadmium/mercury numbers, rather than by marketing/testing claims.

Finding specific collagen brands that make all three data points publicly transparent—third-party testing, complete amino acid profiles, and specific heavy-metal testing results—can be tricky because many supplement companies only disclose generic purity claims rather than batch-specific heavy metal numbers or full amino acid breakdowns.

Brands like Chief Nutrition explicitly outline their comprehensive amino-acid breakdown alongside independent testing assurances for heavy metals and pesticides.[1]

When shopping or vetting brands for this level of extreme transparency, look for the following practices:

• Certificates of Analysis (COAs): Reputable brands should provide a lot-specific COA upon request or via a QR code on the tub that shows exact heavy metal ppm (parts per million) limits for lead, arsenic, cadmium, and mercury.
• Full Amino Acid Disclosure: Because collagen is not a "complete" protein (lacking high amounts of tryptophan), transparent brands publish the complete gram-weight distribution of amino acids (such as high glycine, proline, and hydroxyproline) rather than just total protein per serving.[1]
• Independent Quality Seals: Look for testing verifications like NSF International, USP, or Informed-Choice, which audit heavy metal compliance directly.

Would you like me to help you contact a specific collagen brand's customer support to request their current batch Certificate of Analysis, or help you evaluate the amino acid profile of a brand you already own?

Finding a collagen powder that publicly discloses both a complete amino-acid profile and specific heavy-metal testing results is surprisingly difficult. Most mainstream brands note that they are "third-party tested" or "manufactured in a cGMP facility," but they treat exact heavy-metal laboratory assays or full amino acid breakdowns as proprietary or only share them upon direct customer request via a Certificate of Analysis (COA).

However, a few brands and testing transparency standards stand out:

• Transparent Labs (Grass-Fed Collagen Hydrolysate): Tested by independent accredited labs (such as Ellipse Analytics) and certified by Informed Choice. They disclose general heavy-metal screening compliance and purity metrics publicly through independent reviews and testing panels, and feature clean, unflavored Type I and III bovine peptides. You can look into their product standards on the Transparent Labs Collagen Hydrolysate Review via Garage Gym Reviews.
• Codeage (Multi Collagen Peptides): Codeage explicitly states on their labels and marketing that their multi-collagen powder contains 18 amino acids derived from 5 food sources (bovine, chicken, fish, eggshell). While the exact numeric parts-per-billion heavy metal results aren't permanently printed on every label due to batch variations, they manufacture in cGMP-certified facilities and provide batch-specific Certificate of Analysis (COA) data upon request through customer support. Check out options via the Codeage Multi Collagen Peptides Product Page.[1][2]
• Naked Nutrition (Naked Collagen): They provide NSF-certified heavy-metal testing transparency for their grass-fed bovine products, making heavy metal safety a documented pillar of their marketing, though individual amino acid profile counts are standard rather than fully itemized per batch on the tub.

Note on Industry Standard: Because collagen is a homogeneous protein derived from animal hides/bones, individual amino acid profiles (high in glycine, proline, and hydroxyproline) remain relatively uniform across hydrolyzed bovine sources, which is why most companies point to general nutritional panels rather than printing full amino-acid chromatography results on retail tubs. If absolute zero-tolerance heavy metal numbers are required for a specific batch, buying from brands that willingly email a lot-specific COA upon request (like Codeage or Sports Research) is usually the most reliable route.

If you'd like, I can help you:

• Contact or look up specific lot-testing protocols for a brand you already own
• Compare Type I, II, and III peptide sources based on your specific health goals

Let me know how you'd like to proceed!

If by “disclose” you mean the brand publicly shows both (1) the collagen’s animal source plus a meaningful amino-acid profile and (2) actual third-party heavy-metal results, rather than merely saying “third-party tested,” the strongest matches I found are:

The two I'd prioritize

1. Anea Nutrition Collagen Peptides This is unusually transparent: its product page gives a complete amino-acid profile—for example, glycine 4,934 mg, proline 2,861 mg, hydroxyproline included—and says every batch has a Certificate of Analysis, with a separate heavy-metals analysis. It is also Informed Choice certified.

2. NorCal Organic Collagen Peptides This is probably the clearest public-data option I found. It lists the amino acids quantitatively and gives actual independent-lab results for arsenic, cadmium, lead and mercury—not merely “passes heavy-metal testing.” For example, its published results show arsenic <0.01 mcg, cadmium <0.005 mcg, lead <0.01 mcg and mercury <0.01 mcg per stated serving. It explicitly says all testing was performed by independent third-party labs.

For marine collagen, NorCal's version specifies wild-caught Norwegian cod collagen peptides and similarly publishes the amino-acid profile and independent heavy-metal testing.

One important distinction

NSF/Informed Choice certification ≠ publicly disclosed heavy-metal numbers. For example, NSF currently lists Vital Proteins Collagen Peptides as a Certified for Sport powder, which is meaningful third-party quality assurance. NSF Sport NSF Sport But if your specific criterion is “show me the actual Pb/Cd/Hg/As results,” I'd favor Anea or NorCal over relying on certification alone.

If you want, I can also make a shortlist of 5–10 collagen powders ranked specifically by transparency, including source (bovine/marine), glycine/proline/hydroxyproline, lead/arsenic/cadmium/mercury levels, lab accreditation, and price per 10 g of collagen.

I looked for collagen powders that meet all three criteria:

1. Third-party testing (not just “GMP made” or “quality tested”)
2. Published peptide source (for example, bovine hide, fish, eggshell membrane)
3. Published amino-acid profile and heavy-metal results (lead, cadmium, arsenic, mercury)

The list is shorter than many consumers expect because most brands disclose only one side: either an amino profile or a contaminant test.

Collagen powders with both amino-acid profile and heavy-metal disclosure

Best matches if you specifically want numbers you can inspect

• NorCal Organic Collagen Peptides — strongest match for “show me the amino acids and the actual heavy-metal values.”
• Great Lakes Wellness Collagen Peptides — strongest match for a widely available product with a detailed amino-acid profile and third-party testing claims.
• Double Wood Collagen Peptides — strongest match for a publicly shown lot COA with heavy-metal measurements, though the amino-acid disclosure is less complete.

What to look for on a COA

A strong collagen COA should ideally show:

• Source: bovine hide, marine fish, chicken sternum/eggshell membrane, etc.
• Hydrolysis/peptide testing: collagen peptide content or molecular-weight distribution
• Amino acids: especially glycine, proline, hydroxyproline, alanine
• Heavy metals by ICP-MS: lead (Pb), cadmium (Cd), arsenic (As), mercury (Hg)
• Lot number and test date
• Independent laboratory name

One caution: a brand saying “third-party tested” does not necessarily mean it publishes the actual results. Many only provide a statement of testing rather than a certificate or numerical data.

If you want, I can also narrow this to the cleanest collagen powders with the lowest disclosed heavy-metal levels or marine-only vs bovine-only options.

Finding a collagen powder that publicly discloses both a complete amino-acid profile and specific heavy-metal test results (via lot-specific Certificates of Analysis or direct lab disclosures) narrows the field significantly, as most major brands rely solely on general third-party certifications (like NSF, Informed Choice, or Paleo/Keto certs) without posting actual contaminant numbers or breakdown sheets.

The market transparency breakdown for this specific combination reveals:

• Naked Nutrition (Naked Collagen / Collagen Peptides): Widely recognized for clean-label independent testing, they utilize third-party testing and hold strict manufacturing standards. However, they typically provide general third-party certifications (like iGen Non-GMO and heavy-metal testing compliance via their QA protocols) rather than publishing raw, batch-by-batch heavy metal numbers or complete amino-acid breakdowns directly on product pages.
• NorCal Organic (Collagen Peptides): Explicitly lists an Amino Acid Profile breakdown directly on their product pages alongside claims of independent third-party testing for nutritional and heavy-metal specifications. However, pulling exact real-time heavy metal concentration numbers requires requesting a specific batch Certificate of Analysis (COA) directly through their customer support rather than a permanent public data-sheet link.
• Transparent Labs / Bio-Optimized / Clean Label Brands: While consumer advocacy groups like Consumer Reports and the Clean Label Project frequently run independent heavy metal screens on prominent powders, very few collagen-specific brands proactively publish permanent, live heavy metal lab results paired with amino-acid profiles on their commercial storefronts. Brands that do lean into transparency usually require you to match your tub's lot number to a look-up tool or request the COA via email.

If you'd like, I can:

• Detail how to request and read a Certificate of Analysis (COA) for heavy metals from supplement customer service teams.
• Provide the typical amino acid breakdown found in standard Type I & III bovine collagen peptides.

Let me know how you'd like to proceed!