Classic Mayo
Chosen Foods
Vegan, failsGluten-Free, passesKeto, passes
E392 — Rosemary extract
Why it’s used
Rosemary extract is a natural antioxidant, standardized for its carnosic acid and carnosol content, used to delay oxidative rancidity in fats, oils, and fat-containing foods (e.g. snack foods, processed meats, edible oils) and to extend shelf life, often as an alternative to synthetic antioxidants like BHA/BHT.
Other names
Extract of rosemary, Rosmarinus officinalis extract, Rosemary extractives
Diet flags
Vegan, passesVegetarian, passes
Regulatory status
USA — Allowed
FDA's Substances Added to Food database lists rosemary extract as GRAS under 21 CFR 182.20 (essential oils, oleoresins, and natural extractives) for use as a flavoring agent/adjuvant; antioxidant use at higher, standardized carnosic-acid/carnosol levels is commonly marketed in the US on the basis of independent (self-affirmed) GRAS determinations rather than a dedicated FDA antioxidant-use regulation. Source (2026-07-23)
EU — Allowed
Authorised EU-wide as the food antioxidant E392 under Regulation (EC) No 1333/2008, Annex II, following a 2008 EFSA safety evaluation, with maximum permitted levels set per food category and expressed as the sum of carnosic acid and carnosol. Source (2026-07-23)
Regulatory status by region
FDA's formal listing for rosemary extract (21 CFR 182.20) covers flavoring use; the US has no dedicated food-additive regulation authorizing standardized rosemary extract specifically as an antioxidant, so higher-dose antioxidant use relies on the GRAS self-determination/notification pathway rather than an explicit numeric-limit rule.
The EU explicitly regulates rosemary extract as a food-additive antioxidant (E392) with defined per-category maximum levels (as carnosic acid + carnosol), a formal food-additive authorization the US lacks; the FDA instead relies on the GRAS pathway for antioxidant use beyond the flavoring listing in 21 CFR 182.20.
Found in these products
4 products in our database contain E392.
Almond Flour Crackers - Fine Ground Sea Salt
Simple Mills
Vegan, passesGluten-Free, passesKeto, fails
Granola Bar
Soft & Chewy
Vegan, failsGluten-Free, failsKeto, fails
Harvest Snaps Lightly Salted Crispy Baked Veggie Snacks
Calbee
Vegan, unclearGluten-Free, passesKeto, fails