Aesop Fabulous Face Oil Versus Aesop Chamomile Concentrate Anti-Blemish Masque

Limonene acts as an antioxidant, meaning it helps neutralize free radicals.

When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.

The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.

The gamma-linoleic acid (GLA) is the headliner here; it's relatively rare in plant oils and acts as a precursor for anti-inflammatory signaling molecules in the skin.

There's a mixed body of clinical research with this ingredient as well, mostly on eczema/atopic dermatitis skin.

Some controlled trials showed improvement in inflammation, dryness, scaling, and overall severity. Other studies and large meta-analysis failed to show a significant effect; the honest takeaway here is "promising but inconsistent" rather than "miracle oil".

On the safety front, this ingredient is found to be safe as used in cosmetics and even has a history of safe food use.

Since this oil is contains oleic acid and palmitic acid, it may not be fungal acne safe. The Malassezia yeast feeds on fatty acids with carbon chain lengths between C11-C24. Oleic Acid sits at C18 and Palmitic acid sits at C16.

In vitro studies have shown that oleic acid and palmitic acid are some of the fatty acids that induce rapid Malassezia growth in lab settings.