Science
Mechanism of Action
This extract fortifies the skin's natural barrier by enhancing components like urea within the Natural Moisturizing Factors (NMF), effectively minimizing transepidermal water loss (TEWL) and maintaining optimal hydration. Its action is largely attributed to complex polysaccharides, including fructo-oligose and fructosan, which possess excellent hygroscopic capabilities, increasing barrier proteins such as CLAUDIN-1 and ZO-1 for a more cohesive skin structure. Additionally, it contains homoisoflavonoids and β-fructans that act as antioxidants, neutralizing reactive oxygen species (ROS) and inhibiting irritation pathways. These components also exhibit anti-inflammatory effects by reducing pro-inflammatory mediators (IL-1β, IL-6) and nitric oxide, partly by inhibiting the MAPK signaling pathway, thereby reducing redness and irritation.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 At 3% concentration, this extract increased skin hydration by 13% and reduced insensible water loss by 11% over 14 days with twice-daily application in a gel formulation.
- 02 A polysaccharide derived from Ophiopogon japonicus demonstrated clinical efficacy in reducing atopic dermatitis flares in Caucasian patients.
- 03 Oligofructosanes from the extract showed potential to alleviate atopic symptoms and prolong remission for mild to moderate atopic dermatitis in both children and adults.
- 04 Usage levels of 1-5% (often blended with butylene glycol) are effective for general benefits including soothing, barrier strengthening, and hydration.
- 05 Concentrations of 5-10% are recommended for intensive moisturizing, soothing, and addressing emergency barrier repair or dermatitis issues.
Transparency
Dusting Analysis
Effective clinical concentrations for Ophiopogon Japonicus Root Extract begin at 1% for general benefits and extend up to 10% for high moisturizing and barrier repair. These active ranges are significantly above typical 'dusting' percentages, indicating that this ingredient is not commonly used at sub-efficacious levels for marketing purposes.
The Formula
Formulation
Stability
Its key polysaccharide components exhibit solubility in polar solvents such as water and ethanol. It is frequently formulated as a blend with butylene glycol to enhance stability and deliverability.
Synergies
- Often blended with butylene glycol for enhanced general benefits.
Safety
Safety Profile
Generally regarded as safe for topical application in cosmetic products, with rare reports of adverse reactions. However, specific safety assessments by bodies such as CIR or SCCS are not publicly available, indicating a lack of formal review by these organizations. Data concerning topical use during pregnancy and breastfeeding is insufficient, and consultation with a healthcare professional is advised. The FDA regulates cosmetics as finished products rather than approving individual ingredients; its continued use without negative findings suggests acceptance in cosmetic formulations.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Ophiopogon Japonicus Root Extract is a valuable ingredient, providing comprehensive hydration, robust barrier support, and significant soothing benefits suitable for all skin types without high irritation risk.
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References
Sources