Potassium Bicarbonate
AKA “298-14-6, Potassium hydrogen carbonate, Potassium hydrogencarbonate, Potassium acid carbonate, Monopotassium carbonate, CARBONIC ACID, MONOPOTASSIUM SALT, Armicarb, KHCO3, Kafylox
Ingredient
Ingredient Facts
Potassium bicarbonate
AKA: 298-14-6, Potassium hydrogen carbonate, Potassium hydrogencarbonate, Potassium acid carbonate, Monopotassium carbonate, CARBONIC ACID, MONOPOTASSIUM SALT, Armicarb, KHCO3, Kafylox
Ingredient · Buffering · EWG: 1
Synthetic
Clean
Potassium bicarbonate is a white, crystalline, slightly alkaline and salty substance. It is produced by the passage of carbon dioxide through an aqueous potassium carbonate solution. It is used in medicine as an antacid. It is registered in the FDA under the section of suitable, safe and effective ingredients for OTC antacids. This FDA denomination classifies potassium bicarbonate as a GRAS ingredient.
Solubility Soluble
Formula
CHKO3
Mol. Weight
100.11
CAS #
298-14-6
Form
Powder
State
Liquid; Dry Powder
See origin →
Functions
Buffering
Stabilizes pH
Traditional Use
A mineral salt with historical use as baking soda (sodium bicarbonate) in various cultures. Potassium bicarbonate is a modern variant used in contemporary cosmetics as a pH buffer and mild exfoliant.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Potential Sensitizer
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR