Science
Mechanism of Action
It functions through a triple-action pathway: suppressing tyrosinase activity to inhibit melanin synthesis, neutralizing free radicals to prevent UV-induced oxidative damage, and inhibiting collagenase and elastase enzymes to maintain structural integrity. Furthermore, it modulates the NF-kB signaling pathway to reduce pro-inflammatory cytokine production.
Research
Clinical Evidence
High confidence2.5%
Key findings
- 01 Demonstrated significant reduction in melanin production in B16F10 melanoma cells at a 0.4% concentration.
- 02 Proven to shield human cells from H2O2-induced oxidative stress at concentrations as low as 2-10 µg/mL.
- 03 Formulation benchmarks indicate a 2% to 5% range is necessary for comprehensive anti-aging and moisturizing benefits.
Transparency
Dusting Analysis
While it shows bioactivity at very low levels (0.4%) for brightening, many anti-aging claims require 2% or more. Products listing it near the bottom of the INCI list often fail to meet the therapeutic threshold for structural skin repair.
The Formula
Formulation
Stability
Highly pH-sensitive; the extract transitions from a greenish-yellow hue to an orange-red shade when pH exceeds 7.0.
Synergies
- Vitamin C
- Niacinamide
- Hyaluronic Acid
Conflicts
- Strong oxidizing agents
- Extreme pH environments (<3.5 or >9.0)
Safety
Safety Profile
Topical application is considered safe and non-toxic. While extreme oral doses in animal models raised reproductive concerns, these are not applicable to the concentrations and delivery methods used in skincare.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A sophisticated botanical active that provides robust antioxidant defense and brightening efficacy when formulated within its stability window.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources