Citronellyl Formate: An In-Depth Look at Its Role in Cosmetics

What is Citronellyl Formate?

Citronellyl Formate, also known as (1)-3,7-Dimethyloct-6-enyl formate, is a common ingredient found in a variety of cosmetic products. It’s a clear, colorless liquid that is primarily used for its perfuming properties. This ingredient is derived from citronella oil, which is extracted from the leaves and stems of different species of Cymbopogon (lemongrass).

The use of Citronellyl Formate in cosmetics dates back several decades. Its pleasant, rose-like aroma made it a popular choice among manufacturers looking to enhance the scent of their products. Over time, it has become a staple in the industry, found in everything from perfumes and colognes to lotions and soaps.

As for its production, Citronellyl Formate is synthesized through a chemical reaction between citronellol and formic acid. This process results in a compound that not only smells good but also has a relatively low risk of causing skin irritation or other adverse reactions. However, like any ingredient, it’s important to use it in moderation and be aware of any potential sensitivities.

The Benefits/Uses of Citronellyl Formate

In this section, we will delve into the officially recognized benefits and uses of Citronellyl Formate:

Perfuming

As per the official function defined by the CosIng Database, Citronellyl Formate is primarily used as a perfuming agent in cosmetics. This means it is added to products to give them a specific scent. The scent of Citronellyl Formate is often described as fresh, floral, and slightly citrusy, which can make the cosmetic product more appealing to use. This ingredient can be found in a wide range of products, from skincare and haircare items to makeup and fragrances, enhancing the overall sensory experience for the user.

Note: the listed benefits above are exclusively based on the officially recognized and defined functions of the ingredient, as documented by the International Nomenclature of Cosmetic Ingredients (INCI).

Potential Side Effects & Other Considerations

Citronellyl Formate, as a cosmetic ingredient, is generally considered safe for use. However, like any other substance, it may cause allergic reactions in some individuals. It’s important to note that these reactions are not common, but they can occur.

Redness or irritation: Some people may experience a mild irritation or redness after applying a product containing Citronellyl Formate. This is usually a sign of a mild allergic reaction.
Rash: In rare cases, a rash may develop after using a product with this ingredient. This could be a sign of a more severe allergic reaction.
Itching: Itching is another possible side effect of using products with Citronellyl Formate. If you experience itching, it’s best to stop using the product immediately.

Regarding individuals who are pregnant or breastfeeding, there is currently a lack of data on the safety of topical use of Citronellyl Formate. Therefore, it’s recommended to consult a healthcare professional for further advice if you fall into these categories.

While adverse reactions to Citronellyl Formate are not common, it’s always a good idea to do a patch test before using a product containing this ingredient widely. This involves applying a small amount of the product to a patch of skin and waiting 24 hours to see if any reaction occurs.

On the comedogenicity scale, Citronellyl Formate scores a 0, meaning it’s non-comedogenic. This is good news for individuals prone to acne, blemishes, or breakouts, as it means this ingredient is unlikely to clog pores and contribute to these skin issues.