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ACER RUBRUM LEAF EXTRACT.

Valuable / SKIN CONDITIONING

A potent botanical extract from red maple leaves rich in glucitol-core-containing gallotannins, particularly Ginnalin A. This multi-functional ingredient delivers powerful antioxidant protection while targeting multiple signs of aging through elastase inhibition and melanogenesis regulation. Clinical studies demonstrate significant improvements in skin firmness, hydration, and cellular protection against oxidative damage.

Antioxidant Anti-aging Skin conditioning Soothing Brightening

Science

Functions through three primary pathways: inhibits elastase enzyme to preserve elastin integrity and maintain skin elasticity, acts as a tyrosinase inhibitor to reduce melanin production and hyperpigmentation, and provides cytoprotective antioxidant effects by neutralizing reactive oxygen species and enhancing cellular resistance to oxidative stress.


Research

High confidence
Effective range 0.05–0.1%
Optimal

0.075%

Key findings

  1. 01 50 μg/mL concentration increased keratinocyte viability by 22% and reduced ROS by 84.1% (Ma et al., 2020)
  2. 02 25-50 μM Ginnalin A reduced melanin content by up to 79.1% through tyrosinase downregulation (Ma et al., 2017)
  3. 03 56-day clinical trial showed 100% improvement in skin flexibility and hydration, with >90% reporting enhanced firmness

Transparency

Not commonly dusted
Min. effective
0.01%
Red flag below
0.005%

Effective concentrations are well above typical dusting thresholds, with meaningful benefits demonstrated at 50 μg/mL (0.005%) and above


The Formula

Solubility
Water
Optimal pH 5 – 7
0 7 14

Stability

Exhibits excellent stability in neutral to slightly acidic conditions but may undergo phenolic oxidation and darkening when exposed to high temperatures above 100°C or alkaline environments exceeding pH 9

Synergies

  • Vitamin C
  • Niacinamide
  • Hyaluronic Acid
  • Other antioxidants

Conflicts

  • Strong oxidizing agents
  • Iron salts
  • Strongly alkaline ingredients

Safety

CIR Status
Not reviewed by CIR
Pregnancy
Safe
Sensitization risk Low

Safety supported by traditional botanical use and recent toxicity screenings, with individual polyphenolic components having established safety profiles in cosmetic applications


Your Skin

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

Our Assessment

Valuable

A well-researched botanical extract with compelling clinical data supporting multiple anti-aging benefits at reasonable concentrations.


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