Science
Mechanism of Action
This extract operates through several precise pathways to enhance skin vitality. It acts as a potent antioxidant, effectively neutralizing free radicals to shield skin cells from damage induced by environmental aggressors such as pollution and UV radiation. Its anti-aging efficacy stems from inhibiting collagenase and active MMP-2 enzymes, which are primary contributors to the breakdown of essential collagen and elastin, thereby preventing premature skin aging and the formation of wrinkles. Furthermore, it exhibits antibacterial activity against Streptococcus pyogenes, contributes to maintaining skin hydration and smoothness through conditioning properties, and demonstrates radioprotective effects. Its natural silica content is also believed to promote collagen synthesis, complementing its anti-inflammatory actions.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Exhibited significant antioxidant activity with an IC50 value of 21.182 µg/ml (0.0021%) using the DPPH assay.
- 02 Showed strong collagenase inhibition with an IC50 value of 1.26±1.01 mg/ml (0.126%), comparable to ascorbic acid.
- 03 Achieved 100% inhibition of active MMP-2 and 21.49±2.60% inhibition of pro-MMP-2 in human skin fibroblasts, without observed cytotoxicity in this range.
- 04 Pretreatment with 0.2 µg/ml (0.00002%) Centotheca lappacea extract for 3 hours prior to irradiation demonstrated a radioprotective effect on human endothelial cells, significantly increasing cell viability and decreasing abnormal nuclei formation.
- 05 Effectively inhibited the growth of Streptococcus pyogenes with a Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) of 125 µg/ml (0.0125%).
- 06 No cytotoxicity observed in human skin fibroblasts at extract concentrations up to 1000 µg/ml (0.1%), with cell viability consistently remaining above 90%.
Transparency
Dusting Analysis
Centotheca Lappacea Extract demonstrates significant efficacy at remarkably low concentrations, such as 0.00001% for MMP-2 inhibition and 0.00002% for radioprotection in vitro. While a general cosmetic usage recommendation exists for 1-10%, its potent effects are observed at levels far below this, indicating that it is not typically 'dusted' by being included at ineffectively low concentrations.
The Formula
Formulation
Stability
The stability of bioactive compounds within this plant extract can be influenced by environmental factors including pH, light exposure, temperature fluctuations, and the presence of oxygen.
Safety
Safety Profile
Generally regarded as safe for topical cosmetic applications, with adverse reactions being uncommon. A patch test is recommended prior to extensive use. Specific safety data for topical use during pregnancy and breastfeeding is currently limited, therefore professional medical consultation is advised for these individuals. No regulatory prohibitions by SCCS or FDA were identified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Centotheca Lappacea Extract is a valuable ingredient for precision skincare, offering potent antioxidant, anti-aging, and radioprotective benefits at remarkably low concentrations, making it suitable for a wide range of skin types.
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