Argan Oil
In plain terms
Morocco's "liquid gold," a light, vitamin-E-rich oil that absorbs well and rarely clogs pores. The one real caveat is its nut origin: unlike shea, cold-pressed argan keeps more of its nut proteins, so people with tree-nut allergies should be careful.
What the evidence shows
Argan oil is pressed from the kernels of the Moroccan argan tree and is rich in vitamin E, antioxidants, and omega fatty acids that moisturize, support elasticity, and calm inflammation. It is well-tolerated for most skin types, with a low comedogenic rating, so it generally does not clog pores even on oilier skin. Where it differs from shea is allergy: argan comes from a tree-nut-like kernel, and because cosmetic argan is usually cold-pressed rather than heavily refined, it retains more of its proteins. Most people have no trouble, but contact dermatitis has been reported, and there is one documented case of anaphylaxis after applying argan oil in a person already allergic to peach proteins. That makes it an oil worth patch-testing, and worth avoiding, for anyone with a tree-nut or related food allergy. For everyone else it is a light, well-tolerated moisturizing oil with a good antioxidant profile.
On the label
Listed as argania spinosa kernel oil or argan oil. Low risk for most skin, but if you have a tree-nut allergy, patch-test carefully or skip it, since cold-pressed argan keeps more of the proteins that drive those reactions.