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Moumoujus

ASTRAGALIN.

Valuable CAS 480-10-4 / ANTIOXIDANT, SKIN CONDITIONING - MISCELLANEOUS

A high-performance flavonoid glycoside, also known as Kaempferol 3-glucoside, that functions as a dual-action antioxidant and anti-inflammatory shield. It is specifically engineered to protect the skin's structural proteins while simultaneously inhibiting the pathways responsible for hyperpigmentation and redness.

Summary

antioxidant anti-inflammatory collagen-protection skin-brightening soothing

Science

Mechanism of Action

Astragalin operates by downregulating the NF-κB and MAPK (p38 and JNK) signaling pathways, which significantly lowers the production of pro-inflammatory cytokines like TNF-α and IL-6. It further preserves the extracellular matrix by suppressing Matrix Metalloproteinases (MMPs) that degrade collagen, while providing tyrosinase inhibition to modulate melanin production and ROS scavenging to neutralize UVB-induced oxidative stress.

Research

Clinical Evidence

High confidence
Effective range 0.5–2%
Optimal

1%

Key findings

  1. 01 In vitro data demonstrates a 35-55% reduction in Reactive Oxygen Species (ROS) and suppression of TNF-α at concentrations between 50-500 µg/mL.
  2. 02 Research published in the Journal of Agricultural and Food Chemistry confirms inhibition of MMP-1 and MMP-3 expression via NF-κB pathway suppression at 10-80 µM concentrations.
  3. 03 European Patent EP3135341A1 identifies the 0.5% to 2.0% range as optimal for achieving skin-whitening and anti-proliferative effects on melanocytes without cytotoxicity.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.5%
Red flag below
0.1%

Astragalin is frequently present as a trace constituent in botanical extracts like Centella Asiatica or Equisetum Arvense. Formulas claiming 'Astragalin benefits' using only these extracts often fall below the 0.5% threshold required for localized physiological impact. For precision results, it should be utilized as a standardized isolate.

The Formula

Formulation

Solubility
Both
Optimal pH 4.5 – 6.5
0 7 14

Stability

Stable within the physiological pH range of the skin. It is susceptible to hydrolysis into its aglycone (kaempferol) if exposed to highly acidic environments (pH < 3.0) or extreme thermal stress. It is also light-sensitive.

Synergies

  • Vitamin C (L-Ascorbic Acid)
  • Niacinamide
  • Centella Asiatica Saponins

Conflicts

  • Strong oxidizing agents
  • Highly alkaline environments (pH > 8.0)
  • Strong mineral acids

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
2%
Pregnancy
Safe
Sensitization risk Low

While not formally reviewed by the CIR as a standalone, it is a primary component of several botanical extracts rated 'safe as used.' It exhibits very low toxicity with an LD50 >5000 mg/kg in animal models.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A highly precise multi-target flavonoid that bridges the gap between botanical soothing and clinical anti-aging by protecting collagen and inhibiting inflammatory pigment pathways.

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