Ingredient Library

Rosemary Leaf Extract

INCI Name: Helianthus Annuus (Sunflower) Seed Oil / Rosmarinus Officinalis (Rosemary) Leaf Extract

A botanical antioxidant that helps defend against environmental oxidative stress while supporting healthy-looking, well-conditioned skin.

Why This Ingredient Matters

Rosemary Leaf Extract contains naturally occurring antioxidant compounds that help defend against free radicals generated by environmental stress. The specialized Rosemary Extract used by Luzern can also provide an important formulation benefit by helping protect oxidation-sensitive oils within a skincare formula.

Why Formulation Matters

Antioxidants can protect more than the skin—they can also help protect the formula itself. Botanical oils contain components that can oxidize over time, potentially affecting their stability, odor, and quality.

Luzern uses Rosemary Leaf Extract not only for its skin-conditioning antioxidant benefits, but also to help maintain the integrity of oxidation-sensitive oils within the formulation.

How Luzern Uses It

Emulsion 6 — pairs Rosemary Leaf Extract with Sunflower, Jojoba, Green Tea Seed, Olive, Almond, and Castor oils in a lipid-rich cleansing balm, where its antioxidant properties help support both the skin and the stability of oxidation-sensitive botanical oils.

Crème Nuit — combines Rosemary Leaf Extract with Sunflower Seed Oil, Retinol, Bakuchiol, Tocopherol, CoQ10, and replenishing lipids within an advanced overnight renewal formula, providing antioxidant support for both the skin and the surrounding formulation.

Mineral Sunscreen SPF 30 — combines Rosemary Leaf Extract with Sunflower Seed Oil, stabilized Vitamin C, Green Tea, Edelweiss, Ginger, Thyme, and other antioxidants to complement daily environmental protection and support healthy-looking skin.

Key Benefits

Provides botanical antioxidant support

Helps defend against environmental oxidative stress

Supports healthy-looking, well-conditioned skin

Helps protect oxidation-sensitive oils within the formulation

Common Questions

Why is Rosemary Leaf Extract used in oil-rich formulas?

Many botanical oils contain components susceptible to oxidation. Rosemary Leaf Extract can help protect these oils, supporting the stability and quality of the overall formulation.

Is Rosemary Leaf Extract the same as Rosemary Essential Oil?

No. Rosemary Leaf Extract and Rosemary Essential Oil are different ingredients with different compositions and functions. The Rosemary ingredient used here is an antioxidant-rich extract rather than an essential oil.

Why is Rosemary Leaf Extract combined with Sunflower Seed Oil?

The Rosemary ingredient Luzern uses is supplied in Sunflower Seed Oil. This makes it particularly well suited to lipid-containing formulations where its antioxidant properties can benefit both the skin and the oils within the formula.