Calcium Phosphate

AKA: 7758-23-8, CALCIUM PHOSPHATE MONOBASIC, Calcium dihydrogen phosphate, Acid calcium phosphate, Monobasic calcium phosphate, Monocalcium orthophosphate, Calcium bis(dihydrogen phosphate), Primary calcium phosphate, Calcium monobasic phosphate, Calcium phosphate (1:2)
Synthetic
Clean
Calcium bis(dihydrogenorthophosphate)
Effective at 24.65%
Solubility Solubility: Cold water 1.8 g/100 cc @ 30 °C; decomposes in hot water. /Calcium phosphate monobasic monohydrate/
Formula
CaH4O8P2
Mol. Weight
234.05
CAS #
7758-23-8, 10103-46-5
Form
Powder
State
NKRA; Dry Powder, Pellets or Large Crystals; Pellets or Large Crystals; Dry Powder
Functions
Abrasive
Antiplaque
Buffering
Bulking
Oral Care
Viscosity Controlling
Physical Exfoliant
Fights Plaque
Stabilizes pH
Adds Body & Volume
Antioxidant Protection
Reduces Inflammation
Wound Healing
Traditional Use
Used historically in traditional medicine as a mineral supplement. In cosmetics, developed as a conditioning agent and bulking ingredient in modern formulations.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-1
medical-approval
pregnancy-nursing-safe
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, gentle
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