Science
Mechanism of Action
This extract functions through a high concentration of bio-flavonoids and tannins. Flavonoids neutralize reactive oxygen species (ROS) to prevent UV-induced oxidative stress, while tannins provide mild astringent properties and anti-inflammatory support to reinforce the integrity of the skin barrier.
Research
Clinical Evidence
Medium confidence0.5%
Key findings
- 01 In-vitro analysis confirms broad-spectrum antimicrobial activity against common pathogens like S. aureus and C. albicans, highlighting its role in blemish control.
- 02 Product-specific clinical evaluations at concentrations of 0.4-0.9% demonstrate significant reductions in visible skin redness and enhanced antioxidant defense.
Transparency
Dusting Analysis
Because it is often marketed under the 'Neutral Henna' name for label appeal, many formulations include it at trace amounts (below 0.1%). Effective soothing and antioxidant benefits require a concentration of at least 0.4%.
The Formula
Formulation
Stability
Highly thermolabile; must be incorporated during the cool-down phase of production to prevent degradation of phytochemicals. Best maintained in slightly acidic environments.
Synergies
- Vitamin E
- L-Ascorbic Acid
- Hyaluronic Acid
Conflicts
- Strongly alkaline agents
- Potent oxidizing ingredients
Safety
Safety Profile
Maintains a low hazard profile (EWG 1), though individual botanical sensitivities should always be considered.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An excellent secondary active for stabilizing sensitive complexions and providing robust antioxidant protection when used at therapeutic levels.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources