CALCIUM PCA
L-Proline, 5-Oxo, Calcium Salt (2:1)
CALCIUM PCA is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.
Regulatory evidence by market
No rule for this ingredient has been imported for any of the 13 markets tracked here.
That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.
Chemical identity and properties
Calcium pidolate
The CIR Expert Panel concluded that PCA (i.e., 2-pyrrolidone-5-carboxylic acid), calcium PCA, magnesium PCA, potassium PCA, and sodium PCA are safe in cosmetics in the present practices of use and concentration described in this safety assessment. PCA and its salts should not be used in cosmetic products in which N-nitroso compounds can be formed. — Cosmetic Ingredient Review (CIR)
- IUPAC name
- calcium bis((2S)-5-oxopyrrolidine-2-carboxylate)
- Molecular formula
- C10H12CaN2O6
- Molecular weight
- 296.29 g/mol
- Exact mass
- 296.0321270 Da
- Topological polar surface area
- 138.0 Ų
- Hydrogen-bond donors
- 2
- Hydrogen-bond acceptors
- 6
- Covalent units
- 3
- Defined stereocentres
- 2
Also known as
15 more reported names
External database identifiers
- EPA DTXSID:DTXSID501019893
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Inventory details for CALCIUM PCA
INCI name
CALCIUM PCA
Description
L-Proline, 5-Oxo, Calcium Salt (2:1)
Record provenance
- Inventory reference
- 55183
- Imported identity
- CALCIUM PCA
- Source update
- 15/10/2010
Annex records for CALCIUM PCA
Key data
- HUMECTANT
- Retaining and/or preserving the moisture in a product during use.
- SKIN CONDITIONING
- Maintaining the skin in good condition.
Official EU ingredient-name evidence
The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.
Related inventory evidence
Ingredients with overlapping formulation functions
Additional official and scientific sources
11 external databases to check this identity in
Each link searches that source for this identity. What each source is, and its legal weight
How CALCIUM PCA appears in the CosIng inventory
The CosIng inventory lists CALCIUM PCA as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.
CALCIUM PCA is also tagged with 2 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.
Frequently asked questions
Source note for CALCIUM PCA
This page reproduces the CosIng inventory entry for CALCIUM PCA from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.
Use this inventory page to research CALCIUM PCA and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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