Fatty acids act as natural moisturisers, particularly in plant oils like olive and coconut oil, preventing skin dryness. These acids are vital for upholding the skin’s protective lipid barrier, shielding it from environmental stressors and enhancing barrier strength. Some fatty acids, including linoleic and oleic acid, boast antioxidant properties that combat signs of ageing. Linoleic acid is especially noteworthy for acne-prone skin, as it regulates sebum production and reduces clogged pores. Fatty acids also aid in skin repair, promoting the healing of wounds, scars, and sun-damaged skin. For sensitive skin, gamma-linolenic acid (GLA) from sources like evening primrose or borage oil offers soothing and fortifying benefits, strengthening the skin’s protective barrier.