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L'huile de noisette est-elle comédogène ?

Is hazelnut oil comedogenic?

The comedogenicity of an ingredient refers to its occlusive nature. A compound deemed comedogenic clogs the pores and can cause pimples. What about hazelnut vegetable oil?

What is a comedogenic oil?

The term "comedogenic" comes from the word "comedones" and refers to the property of a cosmetic ingredient or product to clog the sebaceous glands, which are responsible for the production of sebum. By blocking the pores of the skin, a comedogenic compound will prevent the natural evacuation of sebum. This phenomenon can then cause or exacerbate various skin disorders, such as dilated pores, open microcysts (or blackheads), closed microcysts (or whiteheads) or even acne.

The comedogenicity of a compound is assessed on a scale of 0 to 5. A score of 0 means that no comedones have developed, indicating that the pores are not clogged, while a score of 5 means there is a high probability that it will cause comedones. To calculate this index, manufacturers determine, among other things, the rate of penetration of the compound in question into the superficial layers of the skin and its sensitivity to oxidation.

The comedogenicity index of a vegetable oil therefore depends on itsoxidative potentialknowing that an oxidized oil will naturally be comedogenic.

Hazelnut Oil: Comedogenic or Not?

Hazelnut oil is non-comedogenic, its comedogenicity index is equal to 0.

This is due to the fact that the unsaponifiable fraction of hazelnut oil is rich in antioxidant compounds (vitamins A and E, phytosterols). As a reminder, as its name suggests, the "unsaponifiable" fraction of a vegetable oil represents the elements that are not transformed into soap during a saponification reaction. Therefore, hazelnut vegetable oil is stable to oxidation.

As previously mentioned, the comedogenicity index of a vegetable oil is directly linked to its oxidative potential. An oil that is not easily oxidized is non-comedogenic. Thus, hazelnut oil is considered a dry oil that quickly penetrates the skin without leaving a greasy film.

Hazelnut oil at Typology.

Ourhazelnut vegetable oilis derived from the cold pressing of hazelnuts grown inFranceusing organic farming methods. It is recommended for mattifying and purifying shiny skin characterized by an excess of sebum (combination and oily skin types). It also helps to tighten pores for a refined skin texture. It can also be applied to the hair to rebalance oily scalps.

Thepurifying botanical blend also contains hazelnut oil. This night serum helps to purify the skin through the sebum-regulating and anti-inflammatory actions of 7 botanical extracts.

Furthermore, Typology has developed ablemish serumwith 1% bakuchiol combined with hazelnut vegetable oil, which regulates sebum secretion and rebalances the hydrolipidic film. Completely natural, this treatment is suitable for skin prone to acne problems as well as sensitive skin that cannot tolerate retinol.

Source:

  • DiNARDO J. C. & al. A re-evaluation of the comedogenicity concept. Journal of the American Academy of Dermatology (2006).

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