Science
Mechanism of Action
This extract exerts its effects through several mechanisms. Its significant antioxidant activity is primarily due to its abundance of phenolic and flavonoid compounds, which neutralize free radicals. Anti-inflammatory actions are potentially mediated by constituents such as hexadecanoic and stearic acids, identified in hydroethanolic extracts, which have shown efficacy in reducing edema. Furthermore, essential oils from juniper have displayed direct bactericidal activity against various bacterial and fungal strains.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 In vitro studies utilizing Juniperus phoenicea essential oils (leaves at 100 µg/mL, berries at 50 µg/mL) suppressed cell proliferation in MCF-7 (breast cancer) cell lines.
- 02 Essential oils from leaves (100 µg/mL) and berries (25 µg/mL) demonstrated suppressed cell proliferation in HT-29 (colon cancer) cell lines in vitro.
- 03 Antioxidant activity (EC50) was quantified at 11.5 ± 0.04 mg/mL for leaf essential oil and 14.5 ± 1.67 mg/mL for berry essential oil in vitro.
- 04 A hydroalcoholic extract administered at 100 mg/kg BW in mice significantly reduced paw oedema formation and decreased malondialdehyde (MDA) content, indicating potent antioxidant and anti-inflammatory activity.
- 05 Hydroethanolic extracts showed a 100% edema-inhibiting action within 6 hours in Wistar rats, highlighting a strong anti-inflammatory effect.
- 06 Essential oils exhibited significant bactericidal activity against most tested bacterial and fungal strains in vitro, with Minimum Inhibitory Concentrations (MIC) below 2 mg/mL and Minimum Bactericidal Concentrations (MBC) below 3.5 mg/mL.
Transparency
Dusting Analysis
No information regarding ingredient dusting or specific efficacy thresholds for cosmetic application is available in the provided research data.
The Formula
Formulation
Stability
The plant material itself is weakly acidic (pH < 7). Savin wood oil, derived from Juniperus phoenicea, exhibits good stability in alcoholic fine fragrance products. However, its stability is rated as fair in fabric softeners, perborate powder detergents, soaps, and general toiletry applications, and poor in hypochlorite bleach.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel determined that insufficient data existed to assess the safety of Juniperus Phoenicea Gum Extract (and related juniper extracts/tar) for cosmetic use, requiring further information on current concentration, manufacturing, impurities, UV absorption, photosensitization, dermal toxicity, genotoxicity, and irritation/sensitization. Topical use of juniper extracts may induce skin allergic reactions and should be avoided during pregnancy. While acute toxicity animal studies generally show low toxicity for juniper oils, hydroethanolic extracts of J. phoenicea have been reported to potentially harm kidneys in Wistar rats at high doses (e.g., 1000 mg/kg).
Your Skin
Skin Compatibility
Our Assessment
Verdict
Juniperus Phoenicea Wood Extract demonstrates compelling antioxidant, anti-inflammatory, and antimicrobial activity in preliminary in vitro and animal studies; however, a comprehensive evaluation of its safety and efficacy for direct cosmetic application in humans is hindered by currently insufficient data, as noted by CIR.
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