Peptide Atlas · Excipient

Citric Acid

Citrate is a common buffer in injectable biologics; a systematic review found that five of seven direct comparisons reported less injection-site pain with citrate-free formulations.

emerging

provisional
PubChem 22230
1 citation
0 discussions
0 followers
Citric acid monohydrate

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What the evidence says

six tiers, never blended

emerging — human data exists, and it is thin or contested

every claim resolves to its source

All 1 citation resolves to their original source. · 0 posts naming it, 0 members counted once each.

Evidence, kept apart

The Atlas never mixes evidence types into one blob. Each claim below carries the tier it actually sits in; an unresolved citation is shown and does not move the page.

Evidence map for Citric Acid. Tier reflects study design, not enthusiasm.
Claim	Tier	Source
Systematic review: injection-site pain with citrate-free and citrate-containing biologics	emerging	pmid 36043729

Unanswered questions

No open questions on file. Either everything about this molecule is known, or nobody has admitted what is not.

Negative findings

failure is information

Nobody has filed a failure yet. Failures are information; this list is waiting for an honest one.