Science
Mechanism of Action
Calcium Carbonate functions as a bulking agent, increasing product volume and imparting a smooth, luxurious texture. Its particulate structure effectively absorbs excess sebum, delivering a mattifying finish while also blurring imperfections through its opacifying action. Furthermore, it acts as a mild, non-scratching abrasive for gentle exfoliation and helps to stabilize formulations by buffering pH levels.
Research
Clinical Evidence
High confidence3-10%
Transparency
Dusting Analysis
CI 77220 is a functional ingredient typically incorporated at substantial concentrations (e.g., up to 35% in certain cosmetic types) to actively deliver its intrinsic benefits such as textural improvement, mattification, and opacifying effects, rather than being used merely to dilute other active components.
The Formula
Formulation
Stability
The raw ingredient itself typically presents with a pH between 9.0 and 10.5 and exhibits chemical stability in neutral to alkaline environments. However, for optimal formulation integrity and enhanced acid resistance, cosmetic compositions containing CI 77220 are preferably formulated within a pH range of 4.0 to 7.0, as it will react with acidic phases.
Conflicts
- Strong oxidizers
- Strong acids
Safety
Safety Profile
The CIR Expert Panel has concluded CI 77220 is safe for use in cosmetics under current practices and concentrations, referencing prior FDA assessments. The FDA recognizes it as a color additive for cosmetics (excluding the eye area) and as Generally Recognized As Safe (GRAS) for use in OTC antacid products. Strict guidelines from regulatory authorities dictate appropriate concentrations for its various functions.
Your Skin
Skin Compatibility
Our Assessment
Verdict
CI 77220 is a valuable, multi-functional ingredient, particularly beneficial for oily and normal skin types, offering significant contributions to texture, mattification, and formulation pH stability across various skincare and cosmetic applications.
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