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The fragrance facts, graded

Don’t take our word for it. Here’s every fact on this site, with its evidence grade, its caveats, and a link to the source, so you can check us.

We start you on the strong ones: findings that have been replicated or come from one large, well-controlled study. Moderate and weak facts are here too, labeled for what they are. Use “Link to this fact” to share a single card.

1 facts match “limonene”

Children and pregnancy / Other evidence

The authors calculated that a baby breathing the 3-hour room air all day would take in about 45 micrograms of limonene per kilogram per day with water-grown plants versus about 14 for an adult, because babies breathe more air for their weight; hazard quotients were below 1 for every age group.

Weak evidence.

Caveats

Modeled with US EPA default breathing rates and weights; no infant was sampled; the 3-hour mean was treated as the whole-day concentration and 100% absorption assumed; the age gradient is arithmetic, not a finding about infants.

Source: Shin 2026, Scientific Reports Link to this fact

Information, not medical advice. See also: myths we won’t tell you.