Potassium Bicarbonate
AKA “Potassium hydrogen carbonate, Potassium hydrogencarbonate, Potassium acid carbonate, Monopotassium carbonate, CARBONIC ACID, MONOPOTASSIUM SALT, Armicarb, KHCO3
Synthetic
Ingredient Facts
Potassium bicarbonate
AKA: Potassium hydrogen carbonate, Potassium hydrogencarbonate, Potassium acid carbonate, Monopotassium carbonate, CARBONIC ACID, MONOPOTASSIUM SALT, Armicarb, KHCO3
Synthetic · Buffering · EWG: 4
Synthetic
Synthetic
Clean
Helps balance the pH of the formula so the product feels comfortable and works effectively on skin.
Solubility Soluble
Formula
CHKO3
Mol. Weight
100.11
CAS #
298-14-6
Form
Powder
State
Liquid; Dry Powder
See origin →
Functions
Buffering
pH Adjusting
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
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Potential Sensitizer
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR