Collagen JS
How we scored this product Show the full breakdown
Bevisning gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Säkerhet caps applied after weighting.
This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.
Question 1
Does the molecule work?
Does the molecule work?
The science behind each active ingredient, independent of which brand sells it.
Genuine benefits for skin and joint tissue at 10 g/day.
Question 2
Is this bottle good?
Is this bottle good?
The specific product: dose, price, transparency, and what buyers report.
Question 3
What's the catch?
What's the catch?
Säkerhet flags, transparency gaps, dosing concerns, and recurring buyer complaints.
Quick verdict
The numbers
Data verification
Per-ingredient breakdown
All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Bevisning grades are reviewed when new human RCTs are published. Read how we verify.
What's inside
Consumer signals
2.64 out of 5 across 8 verified reviews on 4 platforms.
Medium confidenceConsumer sentiment compiled from 4 public sources.
8 reviews · 2.4/5 · negative sentiment
Compiled from Trustpilot listing located during research; verified at build time.
4.6/5 · positive sentiment
Compiled from Amazon listing located during research; verified at build time.
positive sentiment
Compiled from iHerb listing located during research; verified at build time.
1 threads discussed · positive sentiment
Compiled from Reddit listing located during research; verified at build time.
These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.
What others say (unverified)
No external reviews aggregated yet for this product.
Research behind this product
The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.
Redaktionellt notes
Uses patented BioCell Collagen (hydrolyzed type II collagen + hyaluronic acid + chondroitin sulfate from chicken sternal cartilage) rather than the type I/III marine or bovine collagen more common in longevity-branded skin produkter, positioned more for joint health than skin, despite skin-appearance claims.
Why this scored this way
This Pure Encapsulations Collagen JS scores 4.4, making it among the lowest-scoring produkter we track. It contains 1000.0mg of Collagen Peptider, which is only 10% of the 10000mg trial dose with grade B evidence (promising human data, not yet comprehensive). The quality transparency (5.0) is limited by the lack of third-party testing. At $7.75/day it's among the more expensive options in Connective tissue.
What drives the score up
- Overall score of 4.4 with no single dominant strength.
What drags it down
- Dose-evidence score of 4.2 is below average for the site.
- Overall dose is only 10% of the trial dose across ingredients.
- Collagen Peptider (1000.0mg is 10% of the 10000mg trial dose) is significantly under-dosed.
- No third-party testing, which caps the quality transparency.
- Quality transparency of 5.0 is below the site average.
Why you'd choose it
- You want Collagen Peptider from a Pure Encapsulations product.
Why you might skip it
- You want third-party verified purity.
- You want a product with a publicly available CoA.
- You need a full trial dose of collagen peptides (this product under-doses it).
Where this sits
Spot an error?
If you are the manufacturer or brand owner of Collagen JS and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.
We review every request, verify it against primär sources, and publish any change with a dated note in the version history above. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.
Request a correction →Similar produkter
All Connective tissue →The next highest-scoring produkter in Connective tissue, same scoring method, same rules.