Citrus Paradisii – Grapefruit Oil Grapefruit Red is well known for its ability to detox fluid build up, where it ‘pushes’ the fluids out of the tissues. A must have in any of your cellulite, and fluid retention. Grapefruit Oil is also a great choice for congested, oily, skin where it will help to balance, and cleanse, the skin without causing a rebound effect, in the skin, causing it to over react and create more oil.