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Verified by IngredientMD/Bulletproof/Collagen Peptides
VERIFIED BYingredientMD

Collagen Peptides.

Backed by human trialsBulletproof, verified Oct 2026Formula verified. Independently reviewed.Independent review. Not commissioned by Bulletproof.

Sodium is the lead active here, studied most for hydration. 11 human studies on Sodium back this formula, each one cited. Who it fits: for everyone, adults.

Clinically dosedFull label disclosure
2Active ingredients18Human studies75 mgSodium
Collagen PeptidesVerified by IngredientMD
BulletproofIngredientMD
The verdict
Backed by human trials
For everyone, adults.
How we verify

The brand submits the formula. We read the supplement facts panel and weigh dose, form and synergy against the clinical evidence. Labs test. IngredientMD verifies. The fee pays for review time, never for the outcome.

The formula
Hydrolyzed Collagen: Collagen and connective tissueWell studied
Sodium: HydrationKey driver

How we read this product

Source: Supplement facts
Supplement Facts panel for Collagen Peptides
  1. 01
    We read the label.

    The panel on the left is the one we evaluated, line by line.

  2. 02
    Every active, separately.

    All 2 actives checked against the clinical evidence: dose, form, and what the research actually shows.

  3. 03
    Then the formula as a whole.

    Doses, ratios, and how the ingredients work together. That assessment is the verdict above: "Backed by human trials".

  4. 04
    Earned, not bought.

    The verdict is public and identical whether or not a brand pays. A formula that does not clear the bar gets nothing.

Read by the engine against 2.1 million data points from clinical trials, PubMed and more than a hundred vetted sources. No individual reviewer is named or implied.

The receipts

18
Human studies
75 mg
Sodium
24 g
Hydrolyzed Collagen
24 g per serving clears the studied 2.5 g minimum
Hydrolyzed Collagen, Choi 2019 meta-analysis + Zague 2011 skin studies

Cross-checked against 11 documented interactions for these actives.

Read the evidenceHydrolyzed Collagen, the evidence →Sodium, the evidence →

Inside the formula

Hydrolyzed Collagen
Collagen and connective tissue
Well studied
Sodium
11 studies
Hydration
Key driver
In context

The gap this formula speaks to.

Public health figures the engine matched to this formula's ingredients. Reported by their source, cited and dated, never written by the brand.

This formulaNHANES 2017-2018, published 2021

57.6%

During 2017 to 2018, 57.6% of US adults aged 20 and over reported using a dietary supplement in the past 30 days.

CDC National Center for Health Statistics
14 more
Daily use

59 to 66 days

was the median time it took adults to make a new daily health habit automatic across the studies a 2024 review pooled, with individuals ranging from 4 to 335 days.

Systematic review and meta-analysis, 2024
Hydrolyzed Collagen

Open-label trial, 2025

Supplementation with type 1 and type 3 collagen peptide and type 2 hydrolysed collagen was assessed against joint comfort and function measures in adults with age related joint wear.

Joint Diseases and Related Surgery
Hydrolyzed Collagen

Meta-analysis, 2025

A network meta-analysis comparing nutritional supplements in adults with knee pain and stiffness ranked collagen preparations among the options linked to greater reduction in reported pain than placebo.

Nutrients
Hydrolyzed Collagen

Randomised trial, 2025

In healthy adults, a single dose of hydrolysed collagen raised blood glycine and proline more than free amino acids but no increase in muscle connective tissue protein synthesis rates was detected.

Medicine and science in sports and exercise
Hydrolyzed Collagen

Randomised trial, 2025

Adults with knee pain who took type I and III collagen peptides plus type II hydrolysed collagen reported greater improvement in pain and daily function scores than the comparison group over the trial period.

BMC musculoskeletal disorders
Hydrolyzed Collagen

Open-label trial, 2024

After resistance exercise, a collagen synthesis marker rose more with a 30 gram hydrolysed collagen dose than with a lower dose. This measures a circulating marker, not an actual tissue change.

The Journal of Nutrition
Sodium

Systematic review, 2026

A systematic review catalogued gastrointestinal symptoms reported across sodium bicarbonate dosing protocols and described how symptom burden varies with dose, timing and whether the dose is split or given with food.

European Journal of Sport Science
Sodium

Randomised trial, 2026

Microencapsulated sodium butyrate was tested against abdominal symptom scores and carbohydrate metabolism markers in adults with high blood sugar. Again a butyrate trial in which sodium is the carrier salt.

Scientific Reports
Sodium

Randomised trial, 2026

A randomised trial tested an algorithm-driven sodium supplementation protocol against usual care and measured growth in infants born preterm.

Pediatrics Open Science
Sodium

Randomised trial, 2025

In a trial of 104 very preterm infants, oral sodium supplementation raised daily weight gain by 3.6 grams per kilogram compared with placebo.

BMJ Paediatrics Open

Population figures from public health data. Context for the category, not a statement about any individual and not a claim about this product.

What this formula earned

Every one of these is a fact the engine could ground.

Each line below was derived from this formula's own record at the time of verification. Nothing here was written by the brand, and nothing can be added that the evidence does not carry.

  • Studied in people11 human studies on Sodium back this formula, each one cited.
  • A mechanism that is settledHow Hydrolyzed Collagen and Sodium work is settled pharmacology.
  • Recent work on the recordThe most recent study on this record was published in 2026.
  • Why this formatIt is a powder, so the serving scales to the amount you want and mixes into something you already drink.
  • The exact form, describedThe label names its forms exactly: Hydrolysed type II collagen from chicken sternum, Sodium chloride, table salt, sea salt. The record says what each one is and what it suits.
  • Full label disclosureEvery ingredient on this label carries its own declared amount.
  • Where it comes from and how it is madeHydrolyzed Collagen is made by animal.
  • Positions this formula already qualifies forThis formula already qualifies for positions beyond the one it is sold into, on the evidence it carries.
  • A position nobody is holding yetSome of those positions are ones almost nobody is selling to yet.
What the trials show

What the trials show about timing.

Time-to-effect windows the engine read from the trial record. Each is a window a named study measured, cited and dated, never written by the brand.

  • Sodiumabout 3 days to 4 weeks of steady intakeBuilds with daily use

    In the excretion studies the EFSA reference opinion reviews, urinary output closely tracked dietary sodium once intake was held steady: 98% of dietary sodium appeared in 24-hour urine in a 3-day study, and 86% of sodium ingested over 4 weeks was recovered in 24-hour urine collected during the same period.

    Early
  • Sodiumabout 29 days at each fixed intake levelBuilds with daily use

    In the controlled metabolic study the EFSA reference opinion reviews, young men held at constant sodium intakes for 29 days per level showed rising average daily urinary aldosterone excretion as intake was stepped down from 4.9 g/day to 2.5 g/day.

    Promising

Windows measured in the cited trials. Context for how the active behaves over time, not a statement about any individual and not a claim about this product.

General timing

How each ingredient usually behaves over time.

Two ingredients, from each one's own page.

How each ingredient usually behaves over time, from its own page on IngredientMD. General timing for the ingredient, not a measurement of this product.

Format

Powder

It is a powder, so the serving scales to the amount you want and mixes into something you already drink.

Best forGram-scale actives: creatine, collagen, protein, electrolytes, beta-alanine.

Questions shoppers ask

Is Collagen Peptides independently verified?
Yes. IngredientMD reviewed this formula independently and verified it in Oct 2026. The verdict is earned, not bought: brands can't edit or purchase it.
What's in Collagen Peptides?
Collagen Peptides is built on Hydrolyzed Collagen, Sodium. Each ingredient links to its own evidence page on IngredientMD.
Were ingredient interactions checked?
Yes. The combination was screened against 11 documented interactions for these actives in IngredientMD's interaction database.
Who is IngredientMD?
IngredientMD is an independent supplement-science platform. We analyze ingredients and formulas against clinical research, and we verify products only when they clear our bar. Labs run the tests. We review the results.
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These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This record is not medical advice. Always consult your healthcare provider before starting any supplement regimen.

Independent review by IngredientMD, not commissioned by BulletproofWork at Bulletproof? This verification is yours to claim →