Use a few drops, either alone or mixed into moisturizer. Vogue says Lykke's homemade face oil includes avocado, grape seed, lavender, neroli, and jojoba oils, and that she had always used almond and coconut oil before experimenting with blends.
The linked avocado oil is just one accessible base oil from her recipe; other named ingredients include grape seed oil, jojoba oil, lavender oil, and neroli oil.