Kaffir Lime Peel
Kaffir lime peel is a culinary herb/spice used in small quantities for flavor; no notable adverse effects at typical intake. Citrus essential oils may rarely cause photosensitivity at very high topical doses, but culinary exposure is negligible.
What it is
Kaffir lime peel (Citrus hystrix) is the zest of a Southeast Asian lime variety prized for its intense aromatic citrus oils.
Aromatic seasoning in Thai, Indonesian, and Cambodian cuisine.
Why it's flagged
- theoretical photosensitivity from concentrated essential oil (not at culinary doses)
What regulators actually say
"Essential oils, oleoresins ... and natural extractives derived from citrus species are generally recognized as safe for their intended use."
Regulatory status
United States — FDA
Citrus species are GRAS culinary spices/flavorings (21 CFR 182.20)
European Union — EFSA
Standard culinary spice/flavoring
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