Science
Mechanism of Action
Hydrastis Canadensis Root Extract, rich in alkaloids like berberine, hydrastine, and canadine, impacts skin health through multiple pathways. Its antimicrobial action involves inhibiting bacterial adenosine triphosphate (ATPase/H⁺) proton pumps and disrupting bacterial cell membranes, effectively reducing microbial proliferation. Berberine specifically supports a cleansing action, improving the appearance of blemishes and uneven tone. Furthermore, the extract offers antioxidant protection against environmental stressors and anti-inflammatory effects to soothe irritated skin. It also contains nourishing vitamins (A, C, E, B-complex) and minerals (iron, calcium, manganese).
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Demonstrated bacteriostatic activity against Gram-positive bacterial strains at an average concentration of 0.12 mg/mL in liquid bacterial culture.
- 02 Achieved bactericidal activity against various bacterial strains at concentrations between 1.5 mg/mL and 3 mg/mL with a low-density bacterial inoculum.
- 03 Berberine, a key constituent, exhibited antibacterial efficacy with MIC50 values ranging from 0.125 mg/mL (S. pyogenes) to 4 mg/mL (E. coli) across different bacterial species.
- 04 Ethanol extract of goldenseal rhizome showed antioxidant and anti-inflammatory effects, contributing to anticancer potential in mice models (concentration not specified for topical application).
Transparency
Dusting Analysis
No data available to suggest that Hydrastis Canadensis Root Extract is commonly dusted or has specific dusting thresholds.
The Formula
Formulation
Stability
The key alkaloids in Hydrastis canadensis roots, including berberine and hydrastine, maintain stability over six months when stored under varied temperature conditions (4°C ± 5°C, 20°C ± 5°C, 40°C ± 5°C) and light/dark cycles. For optimal preservation of beneficial components in formulations, it is advised to incorporate the extract during the cool-down phase, specifically below 40–50°C (104–122°F). While certain individual alkaloids may have poor water solubility, the extract itself, when properly prepared (e.g., with solvents like propanediol), is described as water-soluble.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) and Scientific Committee on Consumer Safety (SCCS) have not formally reviewed Hydrastis Canadensis Root Extract. The FDA lists it under 'Food Additive Status' without specific cosmetic safety guidelines. EWG Skin Deep classifies it as 'Low hazard' for cancer, allergies & immunotoxicity, and developmental/reproductive toxicity. However, it is restricted for 'EWG Verified' products without adequate substantiation. While some sources describe it as 'Irritant Free' and soothing topically, others note potential for skin irritation; user sensitivity should be considered. Oral consumption of goldenseal during pregnancy or breastfeeding is considered 'likely unsafe' due to systemic risks of potential brain damage in newborns, a concern primarily relevant to systemic exposure, not typical topical cosmetic application.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Hydrastis Canadensis Root Extract is a valuable ingredient, offering significant antimicrobial, anti-inflammatory, and antioxidant benefits, suitable for all skin types and a broad range of applications, contributing to a clarified and soothed complexion.
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References
Sources