Creating a Lightweight Massage Oil

You're looking to create a massage oil with a lighter feel than Fractionated Coconut Oil and without the slight rancid smell you experienced. You're asking if a lighter mineral oil would be suitable.

While mineral oil, especially lighter grades like Mineral Oil (Paraffinum Liquidum) Very Light (5cst) or Mineral Oil (Paraffinum Liquidum) Very Light (15cst), does not have a scent and won't go rancid like natural oils, it may still feel similar in weight to Fractionated Coconut Oil (Caprylic/Capric Triglyceride) and might not provide the significant lightness you are seeking.

For a much lighter, non-greasy feel that evaporates quickly from the skin, consider using ingredients like Cyclopentasiloxane (Low-Odor Cyclomethicone) or Isododecane. These are lightweight emollients that are commonly used in formulations where a very light, dry, and non-sticky feel is desired. They are excellent for blending with fragrance oils to create a light massage or body oil that absorbs quickly and leaves a smooth, silky finish without residue.

Another option similar to Cyclopentasiloxane but without silicone is LipidSoft™ Cyclo, which also offers a very light, fast-evaporating feel.