Ingredient
Farnesol
What is Farnesol?
Farnesol is a naturally occurring organic compound that belongs to the family of acyclic sesquiterpene alcohols. It is typically derived from essential oils such as citronella, lemongrass, and rose. Farnesol is often found in small quantities in these oils, which are extracted through steam distillation.
It is commonly used in fragrances due to its floral smell and also acts as a stabilizer. Farnesol has been studied for various bioactive properties, but its health effects are not fully understood, with some studies showing mixed results regarding skin irritation in sensitive individuals.
When farnesol is listed on a product label, it usually serves a fragrance or stabilizing purpose. As an allergen, it can have potential implications for individuals with fragrance sensitivities.
Commonly found in: Perfumes, Colognes, Skincare products, Shampoos, Conditioners
What to watch
- May cause skin irritation in sensitive individuals.
The FDA considers farnesol as safe when used in cosmetics under normal conditions of use.
Peer-reviewed studies have shown mixed results, with some indicating potential skin irritation.
Farnesol is typically derived from plant sources and is generally considered vegan-friendly.
Sources: Evaluation of ingredients related to allergy in cosmetics
Scout's take
IFRA / EU-declared fragrance allergen; required on the label because it exceeds 0.001% in this leave-on product.
More from Scout's analyses
IFRA / EU-declared fragrance allergen with floral-musky odor. Documented dermal sensitizer.
from the analysis of Bleu de Chanel Eau de ParfumIFRA / EU-declared fragrance allergen. Sesquiterpene alcohol; mild sensitizer.
from the analysis of Henry Rose Torn Eau de ParfumFound in 18 products
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