Views: 100 Author: Site Editor Publish Time: 2025-07-25 Origin: Site
Cyperus Rotundus Extract is derived from the Rhizomes (roots) of Cyperus rotundus, a perennial herbaceous plant commonly known as nutgrass or purple nutsedge.
Cyperus Rotundus Extract has gained attention in skincare due to its potent bioactive compounds, including flavonoids, terpenoids, and essential oils.
Skin Health Benefits
1) Hyperpigmentation Treatment
Depigmenting Action: A 2021 randomized, double-blind clinical trial (n=153) showed CREO (Cyperus rotundus essential oil) significantly reduced axillary hyperpigmentation vs. hydroquinone (HQ) and placebo (P<0.001). Its mechanism involves inhibiting tyrosinase and melanin synthesis, validated by colorimeter measurements.
Superiority to HQ: CREO matched HQ in depigmentation (P>0.05) but exceeded it in reducing erythema and hair growth, indicating multifunctional advantages.
2) Anti-Inflammatory & Antioxidant Effects
Reduces erythema and soothes irritated skin by suppressing pro-inflammatory cytokines (e.g., TNF-α, IL-6).
High levels of sesquiterpenoids (e.g., α-cyperone, nootkatone) scavenge free radicals, confirmed by in vitro studies.
3) Anti-Hirsutism Properties
Clinically reduces unwanted hair growth in axillary regions, likely by disrupting androgen signaling in hair follicles.
4) Anti-Aging & Barrier Repair
Enhances skin elasticity by promoting collagen synthesis.
Fatty acids (e.g., linoleic acid) reinforce the skin barrier, reducing transepidermal water loss810.
Extraction Methods & Quality Control
1) Key Extraction Techniques
Method | Process | Solvent Used | Best For |
Maceration | Cold infusion of rhizomes | Ethanol/Water blends | Preserving heat-sensitive terpenoids |
Steam Distillation | Vapor extraction of essential oils | Water vapor | High-purity volatile oils |
Supercritical CO₂ | Pressurized CO₂ extraction | Liquid CO₂ | Full-spectrum actives, no solvent residues |
2) Critical Quality Parameters
Plant Source: Rhizomes (roots)--yield higher active concentrations than aerial parts.
Solvent Selection: Ethanol (60–80%)--Optimal for terpenoid solubility. Avoid petroleum solvents to prevent toxin contamination.
Standardization Markers: α-Cyperone (≥0.5%) and total sesquiterpenes (≥2%) for efficacy.
Purity Tests:
Pesticide residues (meet EU Pharmacopoeia limits).
Heavy metals (As, Pb, Hg≤1 ppm).
Formulation Guidelines for Cosmetics
1) Concentration & Stability
Leave-on products: 0.5–1% (e.g., serums, creams) – safe per Chinese regulatory limits.
Encapsulation: Use liposomes (e.g., phosphatidylcholine-based) to protect volatile compounds and enhance penetration.
2) Synergistic Combinations
With Niacinamide (2–4%): Boosts depigmentation.
With Hyaluronic Acid: Enhances hydration and anti-aging effects.
3) Product Types
Brightening serums: 0.8% CREO in water-based gels.
Soothing creams: 0.5% CREO with ceramides.
4) Compliance:
EU Cosmetics Regulation (EC 1223/2009): Permitted as a skin conditioner.
China: Max 1% in leave-on products.
Conclusion
Cyperus Rotundus Extract is a multifunctional cosmetic ingredient with proven depigmenting, anti-inflammatory, and anti-aging properties. For optimal results: Source ethanol-extracted rhizome oils standardized to α-cyperone (≥0.5%), formulate at 0.5–1% in leave-on products, and encapsulate for stability.
Further research on long-term effects is warranted, but current evidence supports its safety and efficacy in hyperpigmentation-focused skincare.
Why Choose Kingherbs Limited Cyperus Rotundus Extract?
Kingherbs Limited is a high-quality supplier of Cyperus rotundus extracts, providing products that meet the highest industry standards. Ensure maximum efficacy and minimum impurity content, and can work effectively in a variety of applications. Contact us at info@kingherbs.com to know more about our products and their uses.
