Limonene (Limonene, natural)

Limonene is a natural substance which is primarily obtained by extraction of natural substances. Large quantities of limonene are a by-product of orange juice production.

Natural limonene is part of our perfume. The concentration is less than 0.6% of the perfume content.

Limonene is a natural substance that occurs in many plants. Many limonene is found mainly in citrus fruits, but also in fir needles, coriander and caraway. The substance can be easily isolated from oranges and lemons and then used as a fragrance.

Surprisingly, limonene can have both cancer-promoting and inhibiting effects.

Limonene is naturally found in citrus fruits such as oranges, grapefruit or lemons, where it has an anticarcinogenic effect. In animal experiments, limonene has been shown to inhibit the growth of cancerous tumours in various organs.

The anti-cancer effects of limonene in humans have not been sufficiently researched, but it has been shown that limonene is very well stored, especially in breast cancer tumours.

However, limonene becomes dangerous when it comes into contact with natural ozone, as is the case with scented candles that are burned down. When limonene meets ozone in the air, formaldehyde is formed.

But limonene is also found in air fresheners and cleaning products, and it gets into the air. Prolonged exposure to formaldehyde can have a carcinogenic effect and be very harmful to health. 

Sources:

https://praxistipps.focus.de/limonene-wann-sie-auf-den-zusatzstoff-verzichten-sollten_108225

https://www.chemie-schule.de/KnowHow/Limonen