Science
Mechanism of Action
This extract acts with a retinoid-like effect on mature skin, stimulating dermal metabolism by boosting collagen type 1 production and inhibiting MMP-1 activity to maintain extracellular matrix function and reduce wrinkles. It delivers potent antioxidant protection by scavenging free radicals and reducing reactive oxygen species, attributed to its chlorophyll, flavonoids, and phenolic compounds. The amino acid profile helps strengthen the skin barrier, reduce sensitivity, and promote resistance to external irritants. Furthermore, it stimulates microcirculation for improved nutrient supply and a healthy glow. Specific components like Alfalfa polysaccharide extract (APE) promote epidermal cell differentiation, enhance tight junction formation, exert anti-inflammatory effects, increase procollagen synthesis, and decrease elastase and MMP secretion. Alfalfa seed extracts also contribute to skin brightening by inhibiting melanin production through the modulation of ERK, CREB, and β-catenin pathways, thereby suppressing MITF, tyrosinase, TRP1, and DCT levels.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 A 2.5% concentration of alfalfa herb extract increased keratinocyte viability by over 170%, with a 5% alfalfa seed extract showing an increase to less than 160%.
- 02 A formulation containing Medicago Sativa Extract demonstrated significant wrinkle reduction after 28 days compared to a placebo.
- 03 Crude leaf extract at 250 µg/ml achieved 54.42% and 56.71% suppression of free radicals via DPPH and FRAP methods, respectively, and showed 50.99% inhibitory activity on Nitric Oxide (NO).
- 04 Crude Alfalfa extract at 147.24 µg/ml exhibited moderate anti-inflammatory activity by inhibiting 50% of NO production.
- 05 Alfalfa seed extracts reduced melanin content, tyrosinase, tyrosinase-related protein 1 (TRP1), and microphthalmia-associated factor (MITF) levels in melanocytes.
- 06 Alfalfa polysaccharide extract (APE) enhanced epidermal cell differentiation, improved tight junction formation, provided anti-inflammatory effects, increased procollagen synthesis, decreased elastase activity, and reduced metalloproteinase-1 (MMP) secretion, alongside superoxide dismutase (SOD)-like antioxidant activity in skin cells.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
No specific optimal pH range or detailed stability notes for cosmetic formulation were found. However, research on chlorophyll extraction from alfalfa observed the highest chlorophyll content at pH 4.5.
Safety
Safety Profile
Alfalfa Extract (Medicago Sativa L.) is generally recognized as safe (GRAS) by the FDA for food use. Topically, it is largely considered a safe and non-irritating cosmetic ingredient. However, individuals with known allergies to legumes may experience sensitivity, making a skin test advisable. Ingesting large amounts of alfalfa seeds and sprouts has been associated with lupus aggravation, a concern typically not linked to topical cosmetic application.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Medicago Sativa Sprout Extract is a valuable, multi-functional ingredient providing anti-aging, antioxidant, anti-inflammatory, and brightening benefits, making it suitable for a wide range of skin types.
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