Ammonium Alginate
AKA “5-dihydroxy-6-methoxyoxan-3-yl)oxy-4, 5-dihydroxy-3-methoxyoxane-2-carboxylic acid, Kaltostat, 4-dihydroxy-5-methoxytetrahydro-2H-pyran-2-yl)oxy)-4, 5-dihydroxy-6-methoxytetrahydro-2H-pyran-2-carboxylic acid, GKFPPCXIBHQRQT-UHFFFAOYSA-N”
Synthetic
Ingredient Facts
Ammonium alginate
AKA: 5-dihydroxy-6-methoxyoxan-3-yl)oxy-4, 5-dihydroxy-3-methoxyoxane-2-carboxylic acid, Kaltostat, 4-dihydroxy-5-methoxytetrahydro-2H-pyran-2-yl)oxy)-4, 5-dihydroxy-6-methoxytetrahydro-2H-pyran-2-carboxylic acid, GKFPPCXIBHQRQT-UHFFFAOYSA-N
Synthetic · Emulsion Stabilising · EWG: 4
Synthetic
Occlusive
Emulsifier
Marine
Synthetic
Clean
Derived from seaweed, ammonium alginate helps bind ingredients together and creates a smooth, stable texture that feels lightweight on skin and hair.
Formula
C14H22O13
Mol. Weight
398.32
CAS #
9005-34-9
Form
Powder
See origin →
Functions
Binding
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Viscosity Controlling
Holds Formula Together
Stabilizes Emulsion
Creates Protective Barrier
Controls Viscosity
Reduces Inflammation
Locks In Moisture
Traditional Use
Derived from seaweed by extracting alginic acid and converting it to ammonium salt in the 20th century. Algae has been used in traditional skincare for centuries, but the purified ammonium form is a modern development used as a thickener and gelling agent.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
Dermal absorption: 2%. Source: CIR Safety Assessment (CIR Seq 680).
Regulatory Agencies
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR