Science
Mechanism of Action
This extract functions primarily as a powerful antioxidant, safeguarding skin cells from environmental aggressors and oxidative stress through its rich profile of vitamins and flavonoids. It actively supports collagen synthesis, aiding in the reduction of fine lines and wrinkles while simultaneously promoting a brighter, more even skin tone. Its natural astringent properties help to visibly tighten skin, minimize pore appearance, and regulate sebum production, proving advantageous for those with oily or blemish-prone skin. Furthermore, the presence of fruit acids provides a gentle exfoliating action, fostering cellular renewal. The extract also contributes to skin hydration via a polysaccharide/amino acid complex, supports a balanced microbiome through its antimicrobial capabilities, and can alleviate mild inflammatory responses.
Research
Clinical Evidence
Medium confidence5%
Key findings
- 01 An in vivo study demonstrated positive changes in human umbilical vein endothelial cell migration and population doubling level, delayed the onset of aging phenotype by senescence-associated β-galactosidase staining, and attenuated increased ROS level in aged cells.
- 02 Effectively utilized as a natural broad-spectrum preservative for the self-preservation of high-end cosmetic products, exhibiting both bactericidal and fungicidal properties.
Transparency
Dusting Analysis
The ingredient is generally recognized as safe and effective within a 5-10% concentration range. The observation of anti-aging benefits at 10.1% further supports its active use at these levels, indicating it is not typically included at sub-therapeutic 'dusting' percentages.
The Formula
Formulation
Stability
Stable at its inherent acidic pH range of 2.0-3.5. While low temperatures (below 15°C) may induce reversible cloudiness, this does not compromise its activity. It maintains stability for a minimum of 12 months in unopened containers under cool conditions, with any sedimentation not impacting performance.
Conflicts
- Carbomer
- surfactants
- anionic emulsifiers
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Panel deems this ingredient safe for cosmetic use under restricted conditions, specifically when concentrations are managed to prevent irritation (typically 5-10%). Due to the natural presence of furanocoumarins, there is a risk of photosensitivity (increased skin sensitivity to sunlight); thus, evening application or diligent daytime sun protection is strongly advised. IFRA guidelines restrict bergapten content (a furanocoumarin) to no more than 0.0015% (15 ppm) in products applied to sun-exposed skin. Individuals with sensitive skin may experience mild irritation or allergic reactions, necessitating a patch test. Eye irritation has been observed at a 1% concentration. The FDA recognizes its use but emphasizes concentration monitoring.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Citrus Grandis Fruit Extract is a valuable, multifaceted ingredient capable of delivering significant antioxidant, anti-aging, and refining benefits, provided its formulation strictly adheres to safety guidelines regarding concentration and photosensitivity.
Related
Similar Ingredients
Finding similar ingredients…