Is soybean oil comedogenic?

An oil is referred to as "comedogenic" when it is likely to clog the pores of the skin, thereby promoting the appearance of comedones, or whiteheads. The comedogenicity of an ingredient determines its occlusive potential and is evaluated on a scale of 0 to 5. A score of 0 means that the ingredient is not comedogenic, while a score of 5 means there is a high probability that it will cause comedones. Generally, it is preferable not to exceed a comedogenicity index of 2 for oily skin types, which are often prone to blemishes.

The determination of an ingredient's comedogenicity is assessed by evaluating several criteria, such as its sensitivity to oxidation, its rate of skin penetration and its quality. Indeed, an oil extracted by cold pressing generally presents a lower comedogenicity index.

Good to know: Just because a product contains a comedogenic active ingredient, it doesn't necessarily mean its application will lead to the appearance of blemishes. This also depends on its concentration in the skincare product and the skin type of the person using the product.

Soybean oil has a comedogenicity index of 2, which makes it slightly comedogenic. Therefore, it can be used by individuals with oily or acne-prone skin, provided it is used sparingly. Applying 2 to 3 drops to the entire face is more than enough to enjoy the hydrating and nourishing benefits of the soybean oil without exacerbating skin problems.

However, it is important to note that, as mentioned earlier, the comedogenicity of an ingredient also depends on its quality. Therefore, we recommend you to ensure that the soybean oil you wish to use has been obtained through cold pressing and to store it away from light in a tightly sealed bottle.

• MURTAZA G. & al. Dermatological and cosmeceutical benefits of Glycine max (soybean) and its active components. Acta Polonia Pharmaceutica (2015).

• SKOTNICKA-GRACA U. & al. Possibilities of using vegetable oils in acne skin care. Aesthetic Cosmetology and Medicine (2022).