Calcium Phosphate (Tricalcium Phosphate) - thickener, viscosity modifier

INCI Name

Calcium Phosphate

Functions

2 Roles

Sustainability

8/10

What It Does

A mineral-derived inorganic salt that functions as a thickening and viscosity-modifying agent in cosmetic formulations. It provides texture enhancement and helps stabilize product consistency.

Controls product consistency

Improves application experience

Stabilizes suspensions and emulsions

Creates desired texture profiles

Technical Properties

pH Range

7.0-9.0

Optimal working range

Ionic Charge

nonionic

Molecular charge type

Viscosity Effect

thickening

Impact on formula thickness

Foaming Ability

none

Lather generation

Ingredient Compatibility

Known Interactions

IRONUse CautionAbsorption Competition

Calcium inhibits both heme and non-heme iron absorption by 50-60% when taken together. These minerals compete for the same absorption pathways. Separate by at least 2 hours or formulate for different serving times.

ZINCNoteAbsorption Competition

High-dose Calcium (>600mg) can reduce Zinc absorption by 30-50%. Consider separating doses or using chelated zinc (zinc bisglycinate) for better absorption.

MAGNESIUMNoteAbsorption Competition

Calcium and Magnesium compete for absorption at high doses. While they can be combined at moderate levels, high-dose formulations should separate them or use chelated forms.

CITRIC ACIDNotePrecipitation

High Calcium + Citric Acid can form calcium citrate precipitate in beverages, causing cloudiness or sedimentation. Manageable with proper formulation (sequestrants, pH control), but test stability.

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