I followed TikTok’s advice, but can you use any old oil and hand cream for this? “I recommend applying nail-specific oils,” said Metta, “but facial oils, body oils, or even pure oils, such as almond or coconut oil, are better than nothing.” Metta explained that nail-specific oils will have been tested on nails and boast the perfect blend to penetrate deeply into the nail, rather than sitting on the surface. “You also might want to avoid applying highly perfumed or creams containing exfoliating acids too often, to prevent any sensitivities from forming,” she advised.