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Moumoujus

MARBLE POWDER.

Valuable CAS - / ABRASIVE

Marble powder, primarily composed of calcium carbonate, serves as a particulate ingredient in skincare, offering gentle physical exfoliation to refine skin texture and promote a smoother complexion. It also functions as a cosmetic filler, providing a matte finish and subtle coverage. Certain forms, particularly those containing lizardite, have been noted for revitalizing and potentially anti-allergic effects.

Summary

Abrasive Exfoliant Opacifying Thickener Gelling Agent

Science

Mechanism of Action

This ingredient primarily functions as an abrasive, facilitating physical exfoliation by gently removing dead skin cells to smooth and polish the skin, which can also aid in decongesting pores. Additionally, it acts as a filler and opacifying agent in cosmetic formulations, contributing to a matte finish and offering light coverage. Some research suggests a role in maintaining skin hydration and supporting pH balance by counteracting excessive acidity.

Research

Clinical Evidence

Medium confidence
Effective range 0.5–8%
Optimal

4.0-8.0%

Key findings

  1. 01 A concentration of 0.5-2% in aqueous solutions demonstrated revitalizing and refreshing effects on the skin.
  2. 02 Formulations containing 4-8% marble powder, specifically lizardite-containing varieties, exhibited revitalizing and rejuvenating effects in creams, body lotions, and other personal care products.
  3. 03 Lizardite-containing marble powder has shown an anti-allergic effect through external application in various topical preparations.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Unknown
Optimal pH 6 – 9.5
0 7 14

Stability

Marble powder is inherently insoluble in both water and organic solvents, rendering it suitable for dry formulations or suspensions. It maintains chemical stability under typical conditions; however, it reacts vigorously with acids, producing carbon dioxide. The material exhibits absorbent properties for both moisture and oil.

Conflicts

  • Strong acids, which initiate a chemical reaction leading to the effervescence and release of carbon dioxide.
  • Formulations requiring a low pH (below 6.0), due to potential chemical instability and pH incompatibility.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

Predominantly composed of calcium carbonate, marble powder is generally considered safe for topical application in cosmetics, a status supported by the FDA's exemption for calcium carbonate in various product categories. Mild skin irritation, particularly for sensitive individuals, and potential dryness with prolonged use are noted as rare side effects. Allergic reactions are infrequent. When in powder form, care should be taken to avoid inhalation, as it may irritate the eyes, skin, and respiratory tract.

Your Skin

Skin Compatibility

Yes Normal
No Dry
Yes Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

Marble powder is a valuable ingredient primarily for physical exfoliation, offering skin refinement and a matte finish, with documented revitalizing benefits and a low risk of irritation or pore clogging.

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