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ACACIA ARABICA STEM BARK EXTRACT.

Insufficient Data CAS 93164-88-6 / SKIN CONDITIONING

A botanically-derived extract rich in tannins (12-20%) and phenolic compounds that provides astringent, antioxidant, and antimicrobial benefits to skin. This traditional ingredient demonstrates measurable improvements in skin texture parameters while offering potent free radical scavenging activity that surpasses ascorbic acid in certain assays.

Astringent Antioxidant Antimicrobial Skin conditioning

Science

Functions through multiple pathways: high tannin concentration creates astringent effects that tighten pores and improve skin texture, while phenolic compounds including gallic acid, ellagic acid, and epicatechin neutralize reactive oxygen species to prevent oxidative damage. Additionally exhibits antimicrobial activity against bacteria like S. aureus through cell wall disruption and enzyme inhibition.


Research

Medium confidence
Effective range 3–3%
Optimal

3%

Key findings

  1. 01 3-month topical application at 3% concentration significantly reduced skin roughness, scaliness, and fine lines while improving texture smoothness parameters
  2. 02 Demonstrated potent antioxidant activity with IC50 values of 6.44 µg/mL (DPPH) and 4.38 µg/mL (ABTS)
  3. 03 Oral supplementation reduced transepidermal water loss and improved dry skin symptoms at 8 weeks

Transparency

Not commonly dusted

Limited commercial usage data available, but clinical studies suggest meaningful concentrations around 3% for topical efficacy


The Formula

Solubility
Water
Optimal pH 4 – 6.6
0 7 14

Stability

Most stable in hydroalcoholic or aqueous solutions with peak antioxidant activity at pH 4.0

Conflicts

  • Heavy metal salts (precipitation with tannins)
  • Strong oxidizing agents
  • Highly alkaline environments (phenolic degradation)

Safety

CIR Status
Insufficient data
Sensitization risk Low

CIR reports from 1998-2023 maintain insufficient safety data for A. arabica species, though A. senegal is considered safe as used


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Insufficient Data

Promising clinical results at 3% but limited safety assessment requires cautious formulation approach.


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