Calcium Carrageenan
AKA “Carrageenan calcium salt”
Synthetic
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Ingredient Facts
Calcium carrageenan
AKA: Carrageenan calcium salt
Synthetic · Emulsion Stabilising | Film Forming | Viscosity Controlling · EWG: 1
Plant-Derived
Occlusive
Emulsifier
Marine
Synthetic
Clean
A natural thickener derived from seaweed that creates a smooth texture and helps our formula stay blended and effective.
CAS #
9049-05-2
Form
Powder
Plant-Derived
Synthetic. Derived from red seaweed (Rhodophyceae class) harvested from marine sources worldwide. Extracted through alkaline treatment and precipitation of native carrageenan, then calcium-complexed for stabilization.
Function
Emulsion Stabilising | Film Forming | Viscosity Controlling
Benefits
Emulsion Stabilising
Film Forming
Viscosity Controlling
Anti-Inflammatory
Boosts Collagen
Antimicrobial
Creates protective layer
Keeps product blended
Controls product thickness
Traditional Use
Derived from red seaweed (carrageenan), which has been used in Celtic and Asian cuisine for centuries. The calcium salt form was developed in the 20th century as a gelling and thickening agent for modern skincare formulations.
Skin Types
all-skin-types, gentle
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score1
CIR Safety Findings
ewg-1, medical-approval, pregnancy-nursing-safe, all-shades-safe, Not a Sensitizer
Concentration Guide
Dermal absorption: 2%. Source: CIR Safety Assessment (CIR Seq 680).
Regulatory Agencies
Verified Feb 2026
Data: CosIng · EWG · CIR