Melissa Officinalis Leaf Extract

Melissa officinalis leaf extract, commonly known as lemon balm extract, is derived from the leaves of a herb in the mint family. It contains rosmarinic acid and other polyphenols—plant compounds with antioxidant properties—which are obtained through water extraction.In skincare formulations, this ingredient functions as a skin conditioner. Research suggests it may work through multiple pathways, including supporting the skin's natural acidification process and potentially reducing protein glycation, a process linked to skin ageing.

The active compound rosmarinic acid appears to activate sodium proton exchanger 1 (NHE1), a protein in the skin that helps maintain the stratum corneum's acidic pH. This acidification is crucial for proper barrier function, as elevated pH is linked to inflammation and compromised skin integrity.Additionally, rosmarinic acid may inhibit glycation—the unwanted binding of sugars to proteins—which accumulates during ageing and contributes to tissue stiffness and loss of elasticity. By reducing this process, the extract may help support skin firmness and resilience over time.

Melissa officinalis leaf extract is typically found in serums, essences, and moisturisers at low concentrations. It integrates well into most skincare routines and can be layered with other actives. If you have sensitive skin or are prone to reactions, introduce it gradually and observe how your skin responds over 2–4 weeks before drawing conclusions about efficacy.

Generally well-tolerated in cosmetic formulations. As with any plant-derived ingredient, individuals with known sensitivity to plants in the Lamiaceae family (mint family) should exercise caution.