Sourcing the Best from Nature

ROSLEV- Rosemary Antioxidant

Leaven’s ROSLEV, a rosemary extract antioxidant from dried leaves of rosemary (rosmarinus officinalis), effectively combats free radicals and helps preserve color and flavor. ROSLEV offers a natural alternative to synthetic antioxidants including Tertiary Butylhydroquinone (TBHQ), Butylated Hydroxyanisole (BHA) and Butylated Hydroxytoluene (BHT). Protect and preserve your products with the power of rosemary.

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One-Stop for Natural Solutions

Leading manufacturer of Food Technologies like ROSLEV Rosemary Antioxidants, Oleoresins, Essential Oils, and Botanical Extracts. We focus on foods that are antioxidant-rich and provide services to the Global Food & Beverage, Pet Food, and Animal Feed industries with creative, cost-effective solutions.

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Why choose us

Research & Innovation

Advanced research & clinical studies

State of the Art Manufacturing

GMP International standards

Quality Assurance

Batch to batch consistency

Application Support

Food & Pharma application development


Traceability and Sustainable sourcing

Customer focused agility

Agile manufacturing and marketing networks


At Leaven Essentials, quality is our top priority. We uphold this standard with stringent certifications and accreditations, including FSSC 22000, Kosher, Halal, Spice Board, and FSSAI. These credentials demonstrate our commitment to delivering premium, high-quality products, ensuring trust and satisfaction for our valued customers.