Pine nut oil has gained attention in skin care primarily due to its rich content of polyunsaturated fatty acids (notably linoleic and oleic acids), vitamin E, and antioxidant compounds. Scientific evidence supporting its use in skin care is limited but growing. Laboratory studies and limited clinical trials suggest that the topical application of pine nut oil can enhance skin barrier function, provide moisturizing effects, and offer antioxidant protection, which may help combat oxidative stress and mild skin inflammation. Some studies have noted that its fatty acid profile may help restore skin lipids, promote skin hydration, and potentially support wound healing. However, these findings are largely preliminary, with most research conducted in vitro or on animal models rather than in large-scale human trials.

The traditional use of pine nut oil in folk remedies for skin issues exists, especially in Siberian and East Asian cultures, but scientific validation remains modest. No major dermatological or medical organizations currently endorse pine nut oil as a primary treatment for any specific skin condition. Overall, while there is some scientific rationale for its inclusion in skin care products as an emollient and antioxidant, more rigorous human studies are needed to fully substantiate its efficacy and safety for general skin care purposes.