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BRASSICA OLERACEA ACEPHALA LEAF EXTRACT.

Valuable CAS - / HUMECTANT, SKIN CONDITIONING

Derived from nutrient-dense kale leaves, this botanical extract delivers clinically-validated antioxidant and collagen-supporting benefits. Rich in quercetin and kaempferol, it demonstrates exceptional anti-aging efficacy while maintaining excellent tolerability across all skin types. Its multifunctional profile combines barrier repair, hydration enhancement, and inflammation control in a single ingredient.

antioxidant moisturizer/humectant soothing anti-aging

Science

Functions through multiple complementary pathways: scavenges reactive oxygen species via flavonoid compounds, activates the Nrf2/ARE cellular defense system for enhanced photoprotection, inhibits collagen-degrading matrix metalloproteinases (MMP-1 and MMP-3) by 40-60%, and suppresses inflammatory cascades through NF-κB pathway modulation


Research

High confidence
Effective range 2–5%
Optimal

5%

Key findings

  1. 01 Reduced matrix metalloproteinases by 40-60% while stimulating Type I collagen synthesis and activating antioxidant pathways
  2. 02 Increased skin moisturization by 48.6% at 1 hour and 34.2% at 24 hours, with improved barrier resilience after 4 weeks
  3. 03 Improved wrinkle depth by 25% and reduced transepidermal water loss by 34%

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

Clinical studies demonstrate meaningful efficacy starting at 2%, with optimal results at 5%. Concentrations below 1% likely provide minimal functional benefit given the extract's mechanism of action.


The Formula

Solubility
Water
Optimal pH 4.5 – 6
0 7 14

Stability

Heat-sensitive compound requiring cool-down phase incorporation below 40°C to preserve bioactive vitamins and antioxidants. Anthocyanin pigments show enhanced stability at lower pH ranges.

Synergies

  • Hyaluronic acid
  • Ceramides
  • Other antioxidants

Conflicts

  • High temperatures above 50°C
  • Strong oxidizing agents
  • Prolonged UV exposure

Safety

CIR Status
Safe as used
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

CIR reviewed in 2017 Safety Assessment of Brassica-Derived Ingredients. Generally recognized as safe due to edible plant origin with low systemic toxicity risk.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

Well-researched botanical extract with demonstrated anti-aging and barrier-supporting benefits at clinically meaningful concentrations.


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