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AVERRHOA BILIMBI LEAF EXTRACT.

Valuable CAS - / SKIN CONDITIONING

A nutrient-dense botanical extract derived from the Bilimbi tree, recognized for its dual-action capability in managing blemish-prone skin while accelerating tissue repair. Its high concentration of flavonoids and phenolics provides a robust defense against oxidative stress and environmental aggressors.

skin conditioning antioxidant antimicrobial anti-inflammatory wound healing

Science

This extract functions through a multi-targeted approach: it disrupts the cellular integrity of acne-causing bacteria like P. acnes, stimulates fibroblast migration to optimize collagen synthesis for wound closure, and neutralizes DPPH free radicals to prevent lipid peroxidation and UVB-induced damage.


Research

Medium confidence
Effective range 0.02–11%
Optimal

7%

Key findings

  1. 01 Demonstrated a 50% reduction in inflammatory acne lesions in human subjects at concentrations between 7-11%.
  2. 02 Accelerated cutaneous wound healing in vivo within 7 days at a 2% inclusion rate via enhanced fibroblast proliferation.
  3. 03 Showed significant antioxidant activity in lipid peroxidation assays at concentrations as low as 0.02%.

Transparency

Commonly dusted
Min. effective
2%
Red flag below
0.5%

While antioxidant benefits may exist at very low levels, the clinically significant anti-acne and regenerative effects require concentrations of at least 2% to 7%. Products listing this ingredient near the bottom of the INCI (below 0.5%) are likely using it for marketing claims rather than functional performance.


The Formula

Solubility
Both
Optimal pH 4.6 – 6.2
0 7 14

Stability

Highly sensitive to pH fluctuations; requires a slightly acidic environment to maintain structural integrity. The extract naturally introduces a warm brownish-yellow hue to the finished formulation.

Synergies

  • Other botanical extracts for hair growth
  • Complementary antioxidants
  • Collagen-boosting peptides

Conflicts

  • Strong oxidizing agents
  • Extreme pH environments (highly alkaline or highly acidic)

Safety

CIR Status
Not reviewed
Max tested
11%
Sensitization risk Low

Human patch testing at 11% confirms excellent skin tolerability with no reported irritation. Oral toxicity data classifies the extract as practically non-toxic (LD50 > 2000 mg/kg).


Your Skin

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

Our Assessment

Valuable

A high-performance botanical that bridges the gap between antimicrobial blemish control and accelerated skin barrier repair.


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