Skincare Ingredient
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Rosmarinus Officinalis Leaf Extract
In Skincare: Is Rosmarinus Officinalis Leaf Extract Safe? Comedogenic Rating & Side Effects
Safety Information
Quick Insights
At a glance
- 01
Rosmarinus officinalis leaf extract provides a natural source of antioxidants for skin.
- 02
In cosmetic formulations, rosmarinus officinalis leaf extract is often “de-oiled” to remove the volatile components.
- 03
Rosmarinus officinalis leaf extract may offer a soothing effect on skin.
- 04
Rosmarinus officinalis leaf extract can support the preservative system in certain cosmetic formulas.
Key Benefits
What Rosmarinus Officinalis Leaf Extract does for your skin
Overview
Ingredient Profile
Role of Rosmarinus Officinalis Leaf Extract
Active Cosmetic Mechanisms
ANTIMICROBIAL
Germ FighterInhibits the growth of bacteria, fungi, and other microorganisms
SCIENTIFIC ANALYSIS
// Evidence: Antimicrobial agents possess bactericidal, bacteriostatic, fungicidal, or fungistatic properties through disrupting cell membrane integrity, inhibiting protein synthesis, interfering with metabolic pathways, or damaging DNA/RNA. Common antimicrobials include quaternary ammonium compounds, alcohols, chlorhexidine, triclosan, and essential oils. Efficacy depends on concentration, pH, contact time, and microbial load.
FRAGRANCE
Scent ProviderAdds pleasant scent to cosmetic products
SCIENTIFIC ANALYSIS
// Evidence: Fragrance ingredients provide aromatic appeal through essential oils, aroma chemicals, and natural extracts. These volatile compounds interact with olfactory receptors creating scent perception. Fragrance design considers top notes (high volatility), middle notes (moderate volatility), and base notes (low volatility) for scent development over time. Must consider stability, allergen content, and regulatory compliance.
SKIN CONDITIONING
Skin EnhancerMaintains skin in good condition and improves its feel
SCIENTIFIC ANALYSIS
// Evidence: Skin conditioning ingredients enhance appearance, texture, and health of skin through various mechanisms. This broad category encompasses emollients, humectants, occlusives, and other agents that improve skin feel, appearance, and function. May work by moisturizing, smoothing, softening, or protecting skin. Effects include improved tactile properties, enhanced barrier function, and better overall skin condition.
Products
containing Rosmarinus Officinalis Leaf Extract
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References
Scientific sources
International Journal of Molecular Sciences, October 2021, pages 1–20
Antioxidants, April 2019, pages 1–16
Medicines, June 2018, pages 1-13
Plant Physiology, November 2017, pages 1,381–1,394
International Journal of Molecular Sciences, November 2014, pages 20,585-20,606
Pharmacognosy Review, January-June 2014, pages 52-60
Journal of Medicinal Food, April 2013, pages 324-333
Journal of Agricultural and Food Chemistry, January 1996, pages
Similar Ingredients
Ingredients with similar chemical profiles and skincare properties.
Frequently Asked Questions
Rosmarinus Officinalis Leaf Extract — common questions
What is Rosmarinus Officinalis Leaf Extract in skincare?
Rosmarinus Officinalis Leaf Extract is an extract of the leaves of the Rosemary, Rosmarinus officinalis L., Lamiaceae
What does Rosmarinus Officinalis Leaf Extract do? / Functions of Rosmarinus Officinalis Leaf Extract?
Common functions: ANTIMICROBIAL, FRAGRANCE, SKIN CONDITIONING.
What is the comedogenic rating of Rosmarinus Officinalis Leaf Extract? / Is Rosmarinus Officinalis Leaf Extract comedogenic?
The comedogenic rating of Rosmarinus Officinalis Leaf Extract has not been established in our database.
Does it clog pores?
Whether Rosmarinus Officinalis Leaf Extract clogs pores depends on the formulation and concentration.
Is Rosmarinus Officinalis Leaf Extract safe for skin?
Rosmarinus Officinalis Leaf Extract has a safety rating of 2 out of 5. A rating of 2 means it is generally considered safe for most skin types. Note: The Cosmetic Ingredient Review (CIR) has noted that Rosmarinus Officinalis Leaf Extract may cause skin irritation and allergic reactions, particularly in individuals with sensitive skin; the Environme
Is Rosmarinus Officinalis Leaf Extract good for sensitive skin?
Rosmarinus Officinalis Leaf Extract has an irritancy rating of 3 out of 5. A rating of 3 means it may cause mild irritation for some.
What are the side effects of Rosmarinus Officinalis Leaf Extract in skincare?
Known considerations: The Cosmetic Ingredient Review (CIR) has noted that Rosmarinus Officinalis Leaf Extract may cause skin irritation and allergic reactions, particularly in individuals with sensitive skin; the Environmental Working Group (EWG) rates it with moderate concerns due to potential for skin irritation. Additional risks: skin irritation (irritancy rating 3/5).