PRUNUS LAUROCERASUS L.

📋 Quick facts

Quick Facts:

• Category: other

Proven Benefits At A Glance:

• Prunus laurocerasus is an evergreen plant native to temperate regions
• Its leaves have a highly effective water barrier made of waxy compounds, particularly ursolic acid
• The plant contains diverse communities of bacteria within its tissues
• Research on this plant spans barrier function, water management, and bioactive properties

📊 Comedogenicity

🛡️ Safety rating

Safety tier is a starting heuristic from regulatory status and comedogenic rating, not a dermatological verdict — see our Terms for the full disclaimer. Research confidence reflects how many real cited studies back this ingredient, not the strength of their findings.

🤰 Pregnancy Safety Note

Prohibited by Health Canada Cosmetic Ingredient Hotlist.

🌍 Regulatory Status

💧 Skin Type Compatibility

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📚 Research & Evidence

🔬 The Science

Prunus laurocerasus L., commonly known as cherry laurel, is a broad-leaved evergreen that has attracted scientific attention for several distinct properties. Here’s what research actually shows:

#1: Cuticular barrier composition — The plant’s leaves are covered with a protective waxy layer (called the cuticle) that regulates water loss. According to Plant Physiology and Biochemistry (2021), this barrier is primarily composed of pentacyclic triterpenoids dominated by ursolic acid, with cutin (a waxy biopolymer) made largely of 9/10,ω-dihydroxy hexadecanoic acid. These compounds create distinct barrier properties that vary depending on which surface of the leaf you examine and the plant’s developmental stage.

#2: Water management efficiency — The plant demonstrates sophisticated water regulation. Journal of Experimental Botany (2003) found that when leaf veins were experimentally blocked, the plant’s stomata (tiny pores that control gas exchange) would close to maintain stable water potential and prevent cavitation—a condition where water columns in the plant break, potentially causing damage. This shows the plant has a finely-tuned system for managing internal water status. #3: Bacterial communities — The plant hosts diverse communities of endophytic bacteria (bacteria living inside plant tissues). According to Plants (Basel) (2022), these bacterial communities shift seasonally, with dominant bacteria including Corynebacterium, Acinetobacter, and Chryseobacterium genera.

The bacterial diversity actually increased in spring compared to winter months. Importantly, the available research focuses on the plant’s physiology and ecology rather than direct skincare benefits. One study (International Journal of Phytoremediation, 2026) examined the plant’s biosorption capacity for removing synthetic dyes from wastewater, noting it has “rich bioactive content,” but this research doesn’t translate to specific skincare claims. The barrier properties documented in the cuticle research are botanically interesting but haven’t been directly studied for topical skincare applications in these sources.

📄 Related Research

Matched by search — not necessarily verified support for every statement above.

• Diarte C et al. (2021). Compositional, structural and functional cuticle analysis of Prunus laurocerasus L. sheds light on cuticular barrier plasticity. Plant Physiol Biochem.
• Nardini A et al. (2003). Effects of the experimental blockage of the major veins on hydraulics and gas exchange of Prunus laurocerasus L. leaves. J Exp Bot.
• Deniz F (2026). Synthetic dye biosorption performance of Prunus laurocerasus L. plant species from wastewater medium: promising candidate for remediation of polluted water environment. Int J Phytoremediation.
• Michalko J et al. (2022). Changes of Endophytic Bacterial Community in Mature Leaves of Prunus laurocerasus L. during the Seasonal Transition from Winter Dormancy to Vegetative Growth. Plants (Basel).

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