Besides rosehip seed oil that’s already been mentioned (and an anti-aging powerhouse if we’re talking oils), I’m also fascinated with tamanu oil. In cold-pressed non-processed form it is cloudy green and has an earthy smell (it takes a while to get used to it, but now I honestly quite enjoy it). It’s very healing and works well on cuts and rashes, it also fights hyper-pigmentation (at least the recent ones from my experience, but I remember Liah Y. on YouTube saying she used it on some old acne hyper-pigmentation with impressive results).