Science
Mechanism of Action
This extract exerts its powerful effects by inhibiting a broad spectrum of inflammatory factors, including interleukins (IL-6, IL-1β, IL-17, IL-22, IL-23, IL-36α), tumor necrosis factor-alpha (TNF-α), and gamma interferon. It actively modulates immune cell responses, specifically targeting Th17 lymphocytes and γδT cells, and suppresses general immune cell activation. Key cellular signaling pathways such as NF-κB, JAK/STAT, IFN-SOCS1, and IL-36α are modulated. Furthermore, it demonstrates inhibitory action on excessive human keratinocyte proliferation and possesses antibacterial activity.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 An animal study utilizing Celastrol gel, a primary component of the extract, at concentrations ranging from 0.008% to 0.06%, demonstrated amelioration of imiquimod-induced psoriasis-like dermatitis by targeting Langerhans cells and reducing IL-17 production.
- 02 In vitro research employing a Celastrol-enriched extract (3, 10, 30, and 90 ng/mL) inhibited both Th17 and Th22 differentiation and suppressed inflammatory factors stimulated by IL-17, IL-22, and IFN-α in keratinocytes, providing insights relevant to psoriasis treatment.
- 03 An in vitro study on the full Tripterygium wilfordii Hook. f. extract at 0.75 mg/mL and 1.5 mg/mL showed significant concentration-dependent inhibitory action on lymphocytes.
Transparency
Dusting Analysis
This ingredient is not commonly identified as a 'dusted' active. However, its significant internal toxicity profile and the limited comprehensive topical safety data necessitate rigorous formulation and concentration validation to ensure efficacy and mitigate potential risks. No established 'red flag' percentage exists for topical applications, emphasizing the need for robust internal testing for safety and efficacy.
The Formula
Formulation
Stability
Celastrol, a primary active component of the extract, demonstrates long-term stability (over 24 months) when stored at -20°C in light-proof, sealed conditions. The absorbance of a sample solution containing four components of the extract showed stability within 24 hours. Celastrol is readily soluble in DMSO and ethanol.
Safety
Safety Profile
Tripterygium Wilfordii is critically known for severe systemic toxicity, including reproductive harm, liver and kidney damage, and gastrointestinal issues, when administered internally. While a topical study on oral lichen planus noted no significant difference in adverse events between treatment and control groups, comprehensive topical safety data for cosmetic applications remains largely absent, as indicated by 'Safety References: None found' in some databases. Given its potent biological activity and documented internal toxicities, the utmost care in concentration and formulation is paramount for any topical cosmetic use.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While offering powerful anti-inflammatory and immunomodulatory potential, the significant internal toxicity and limited comprehensive topical safety data for Tripterygium Wilfordii Root Extract necessitate extreme caution and rigorous validation for its use in cosmetic formulations.
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References
Sources