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Moumoujus

BUTYROSPERMUM PARKII NUT SHELL POWDER.

Valuable CAS 91080-23-8 / ABRASIVE

A sustainable physical exfoliant derived from ground shea nut shells that provides mechanical removal of dead skin cells through its naturally hard cellulose and lignin-rich particles. This biodegradable alternative to microplastic beads offers effective surface cleansing while removing excess oils and environmental pollutants. The ingredient delivers controlled abrasion suitable for both facial and body applications when properly formulated.

Summary

Physical exfoliant Abrasive agent Cleansing aid

Science

Mechanism of Action

Functions through mechanical abrasion where cellulose and lignin-rich shell particles physically dislodge dead corneocytes from the stratum corneum via grinding and polishing action, simultaneously removing surface oils and environmental debris

Research

Clinical Evidence

Medium confidence
Effective range 0.2–10%
Optimal

1%

Key findings

  1. 01 Supplier data demonstrates high efficacy in dead skin cell removal at 0.2-10% concentrations with optimal sustainability profile
  2. 02 CIR assessment at up to 1% concentration showed non-sensitizing properties based on read-across data from related shea derivatives

Transparency

Dusting Analysis

Not commonly dusted

As a physical exfoliant with established safety data and specific concentration guidelines, dusting is not a primary concern for this ingredient

The Formula

Formulation

Solubility
Both
Optimal pH 3 – 10
0 7 14

Stability

Demonstrates excellent stability across wide temperature and pH ranges as an insoluble solid, with stability primarily dependent on formulation's ability to maintain particle suspension

Synergies

  • Thickening agents
  • Yield value enhancers
  • Suspension aids

Conflicts

  • Low-viscosity liquids
  • Formulations lacking adequate thickening systems

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Pregnancy
Safe
Sensitization risk Low

CIR Expert Panel approval with requirement for non-sensitizing formulation approach, positioned as eco-friendly microplastic alternative

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

An effective, sustainable physical exfoliant with good safety profile and broad skin type compatibility, though requires careful formulation for optimal performance.

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