Calcium Paraben
AKA “Calcium bis(4-hydroxybenzoate), EINECS 274-235-4, RefChem:122778, DTXCID30142725, calcium;4-carboxyphenolate, MSK2535Ca”
Synthetic
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Ingredient Facts
Calcium paraben
AKA: Calcium bis(4-hydroxybenzoate), EINECS 274-235-4, RefChem:122778, DTXCID30142725, Calcium;4-carboxyphenolate, MSK2535Ca
Synthetic · Preservative | Antimicrobial · EWG: 4
Plant-Derived
Preservative
Synthetic
Not Clean
Preservative that helps keep the product fresh and effective throughout its shelf life.
Formula
C14H10CaO6
Mol. Weight
314.30
CAS #
69959-44-0
Form
Powder
Plant-Derived
Synthetic. Calcium paraben is synthesized from para-hydroxybenzoic acid (PHBA), a compound derived from petroleum or synthesized via benzoic acid. It is produced through esterification of PHBA with methanol, followed by calcium salt formation.
Function
Preservative | Antimicrobial
Benefits
Preservative
Anti-Inflammatory
Boosts Collagen
Antimicrobial
Prevents microbial growth
Traditional Use
Parabens were first synthesized in 1924 as synthetic preservatives designed to replace traditional salt-based preservation methods. The calcium salt form was developed to extend shelf life in cosmetic formulations.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
Restricted By
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Phototoxicity Concern
Concentration Guide
8.0%
0%11%
Reg. Limit
EU regulatory limit: 8.0%. 0,4% (as acid) for single ester 0,8% (as acid) for mixtures of esters Source: EU Cosmetics Regulation (EC) 1223/2009, Annex V (Preservatives), Entry 12. Dermal absorption: 0.1%. Source: CIR Safety Assessment (CIR Seq 746).
Regulatory Agencies
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR