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Trans-Rose Ketone-5: An In-Depth Look at Its Role in Cosmetics

Article last updated: June 13, 2024

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Ever wondered what gives your favorite beauty products their alluring scent and skin-enhancing properties? Dive into the world of Trans-Rose Ketone-5 and discover its transformative role in cosmetics, from its creation to its myriad benefits and potential side effects.

What Is Trans-Rose Ketone-5?

Trans-Rose Ketone-5, also known by its chemical name (E)-1-(2,4,4-Trimethyl-2-cyclohexenyl)-2-buten-1-one, is a synthetic compound primarily used in the cosmetic industry for its perfuming properties. This ingredient is designed to impart a pleasant fragrance to various cosmetic products, enhancing the overall sensory experience for the user.

The history of Trans-Rose Ketone-5 in cosmetics is relatively recent, as it was developed to meet the growing demand for unique and long-lasting fragrances in beauty products. Its introduction into the market was driven by advancements in organic chemistry and the need for more stable and versatile aromatic compounds. Unlike natural rose ketones, which can be volatile and expensive to extract, Trans-Rose Ketone-5 offers a more consistent and cost-effective alternative.

Trans-Rose Ketone-5 is synthesized through a series of chemical reactions that involve the manipulation of organic molecules. The process typically starts with the cyclization of specific hydrocarbons to form the cyclohexenyl ring, followed by the addition of functional groups that create the ketone structure. This synthetic approach allows for precise control over the purity and concentration of the final product, ensuring that it meets the stringent quality standards required for cosmetic formulations.

The Benefits/Uses of Trans-Rose Ketone-5

In this section, we will delve into the officially recognized cosmetic benefits and uses of Trans-Rose Ketone-5:


Trans-Rose Ketone-5 is primarily used for its perfuming properties. This means that it is added to cosmetic products to impart a pleasant fragrance. The ingredient has a unique scent profile that can enhance the overall sensory experience of using a product. Whether it’s a lotion, shampoo, or facial cream, the addition of Trans-Rose Ketone-5 can make the product more enjoyable to use by providing a delightful aroma.

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

Trans-Rose Ketone-5, while primarily used for its perfuming properties in cosmetic products, does come with some considerations regarding its safety and suitability for all users.

Potential side effects of topical application of this ingredient include:

  • Skin irritation
  • Allergic reactions
  • Contact dermatitis

Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Trans-Rose Ketone-5 during pregnancy and breastfeeding are lacking. Therefore, it is recommended that these individuals consult a healthcare professional for further advice before using products containing this ingredient.

Adverse reactions to Trans-Rose Ketone-5 are generally uncommon, but as with any cosmetic ingredient, individual sensitivities can vary. To minimize the risk of adverse reactions, it is advisable to perform a patch test before widespread usage.

In terms of comedogenicity, Trans-Rose Ketone-5 is rated at 1 on a scale of 0 (totally non-comedogenic) to 5 (highly comedogenic). This low rating indicates that it is unlikely to clog pores, making it a suitable option for individuals prone to acne, blemishes, or breakouts.

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