Dicalcium Phosphate

AKA: 7757-93-9, CALCIUM HYDROGEN PHOSPHATE, Calcium phosphate dibasic, Calcium hydrogenphosphate, Dibasic calcium phosphate, Dibasic, Secondary Calcium phosphate, Biofos, Phosphoric acid, Calcium salt (1:1)
Synthetic
Clean
Calcium hydrogenorthophosphate
Effective at 24.65%
Solubility Sparingly soluble in water. Insoluble in ethanol
Formula
CaHO4P
Mol. Weight
136.06
CAS #
7757-93-9
Form
Powder
State
Dry Powder, Pellets or Large Crystals; Pellets or Large Crystals; Other Solid; Dry Powder
Functions
Abrasive
Bulking
Opacifying
Oral Care
Physical Exfoliant
Adds Body & Volume
Adds Opacity
Antioxidant Protection
Reduces Inflammation
Brightens Skin
Gently polishes surface
Supports dental health
Adds volume
Creates creamy opacity
Traditional Use
Mineral salt used historically as a mild abrasive in tooth powders and dentifrices dating back to the 19th century. Later adopted in cosmetics as a bulking agent and anti-caking ingredient.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.3%
49.0%
0%69%
Reported use
CIR reported use: 0.3-47.7 | 6.8-49
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR