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Ingredient directory

Acacia Arabica Stem Bark Powder

A traditional botanical powder derived from Babul tree bark, delivering potent astringent properties through its remarkable 12-20% tannin content. This natural antimicrobial agent demonstrates clinically-backed wound healing acceleration and acne-fighting capabilities while providing gentle pore-tightening effects.

Directory entry · Individual source review pending

This profile is awaiting an individual source review. Treat its ratings, dose estimates and compatibility labels as provisional; they are not medical advice or proof of a finished product’s effects.

skin conditioning astringent antimicrobial wound healing

Science

Mechanism of Action

Functions as a dual-action astringent and antimicrobial through tannin-mediated protein precipitation that contracts skin tissue and creates protective barriers against pathogens. Gallic acid and flavonoid compounds provide antioxidant defense while stimulating TGF-β pathways to enhance collagen production and accelerate cellular repair processes.

Research

Clinical Evidence

Medium confidence
Effective range 1–5%
Optimal

5%

Key findings

  1. 01 5% gel formulation accelerated wound healing via enhanced re-epithelialization and collagen synthesis
  2. 02 Bark-based treatments reduced acne lesions by 50% over 6-week application period
  3. 03 12-20% tannin content demonstrated potent antimicrobial activity against S. aureus and P. aeruginosa

Transparency

Dusting Analysis

Not commonly dusted

Traditional botanical ingredient with established therapeutic uses, not typically associated with marketing-driven inclusion

The Formula

Formulation

Solubility
Water
Optimal pH 4.5 – 7
0 7 14

Stability

Maintains stability across wide pH spectrum but performs optimally in slightly acidic to neutral conditions. May experience gradual oxidative darkening due to tannin content over extended storage periods.

Synergies

  • Niacinamide for acne treatment
  • Hyaluronic acid for moisture balance
  • Zinc oxide for antimicrobial enhancement

Conflicts

  • Heavy metal ions
  • Strong oxidizing agents
  • Highly alkaline ingredients

Safety

Safety Profile

CIR Status
Insufficient data
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

Traditional safety profile supported by centuries of topical use, though formal CIR evaluation remains incomplete for this specific Acacia species

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A scientifically-supported botanical with proven antimicrobial and wound-healing properties, particularly beneficial for oily and acne-prone skin types.

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