Science
Mechanism of Action
Lavandula Officinalis Flower/Extract, also known as Lavandula Angustifolia Flower Extract, operates through several key pathways. Its anti-inflammatory action stems from flavonoids, hydroxycinnamic acids, prostanoids, and histamine content, effectively diminishing redness and swelling by lowering inflammatory markers in keratinocytes. As an antioxidant, it leverages polyphenols, flavonoids, and phenolic acids to neutralize free radicals, safeguarding skin from premature aging. It exhibits antibacterial properties against acne-causing bacteria like Cutibacterium acnes, contributing to clearer pores and sebum regulation. The extract further supports skin health by enhancing barrier function, promoting moisture retention, stimulating cellular regeneration for wound healing and collagen production, and offering mild astringent effects for pore purification.
Research
Clinical Evidence
Medium confidence1-3% for 10:1 standardized liquid extract; up to 0.1% for general extract.
Key findings
- 01 Research indicates that lavender extract effectively reduces the expression of inflammatory markers in keratinocytes, thereby alleviating skin redness (Korean Society of Cosmetic Scientists, 2023).
- 02 A 10:1 standardized liquid lavender extract is recommended at 1-3% in creams or lotions for pronounced skin-soothing and hydrating properties (Naturallythinking).
Transparency
Dusting Analysis
The general safety guideline for Lavandula Officinalis Flower/Extract in leave-on cosmetic products sets a maximum concentration of 0.1% to mitigate the risk of severe allergies and rashes. However, some efficacy data references 1-3% for specific 10:1 standardized liquid lavender extracts, implying a higher potency for a refined material. Concentrations observed in commercial products can even reach 20-100% for Lavandula Angustifolia Extract, which significantly exceeds the general safety threshold for the broad ingredient. This discrepancy creates a high potential for dusting, where products may include the ingredient at higher percentages for perceived efficacy without adequate consideration for the specific extract type's safety profile or the general ingredient's established safety limits, particularly for leave-on applications. Exceeding 0.1% for the general extract in leave-on products is a red flag.
The Formula
Formulation
Stability
No specific optimal pH range for stability was identified. For optimal efficacy, the extract should be incorporated into the final formulation once temperatures are below 40°C. It demonstrates compatibility within emulsions and surfactant systems. Potential formulation challenges include subtle shifts in odor and color over time, potential haze or instability in various bases, and batch-to-batch variability.
Conflicts
- Individuals with known sensitivities or allergies to lavender or other plants within the Lamiaceae family may experience irritation, redness, burning, or itching.
- Concentrations exceeding 0.1% in leave-on formulations significantly elevate the risk of severe allergic reactions and rashes.
- Exercise caution when formulating for very sensitive or reactive skin types, delicate anatomical areas, and in high-exposure leave-on products.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically evaluated 'LAVANDULA OFFICINALIS FLOWER/EXTRACT', though reports exist for Lavender Oil. The ingredient is generally considered mild and non-toxic, but it contains linalool, a known allergen, albeit in lower quantities than lavender essential oil. Due to this and other constituents, some individuals, especially those with sensitive skin or existing allergies to Lamiaceae family plants, may experience allergic reactions or irritation. Patch testing is recommended. The safe usage concentration in cosmetics, particularly leave-on products, is advised not to exceed 0.1% to prevent severe allergies and rashes. A study on lavender *oil* (not the extract) indicated potential cytotoxicity to human skin cells in vitro at 0.25% (v/v).
Your Skin
Skin Compatibility
Our Assessment
Verdict
LAVANDULA OFFICINALIS FLOWER/EXTRACT offers valuable multi-functional benefits for skin health, though its effective and safe incorporation requires precise formulation adherence to concentration limits, especially for leave-on products and sensitive skin types.
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