The goal for this research is to explore the process of select natural oils passively diffusing into a wax system to quantify the depth and speed of diffusion. Studying the diffusion process in these systems can provide valuable insight into the physical interactions between the wax and diffusant molecules and into the mechanics of diffusion-based solvation. The waxes used in this system are beeswax, paraffin wax, and carnauba wax, used with d-limonene, α-pinene, β-pinene, l-carvone, and cinnamaldehyde as the diffusants. The diffusion coefficient for each system was determined by the timed acquisition of infrared spectra using transmission Fourier- transform infrared spectroscopy and generating diffusion profiles per oil/wax system by plotting the changing absorbance of the diffusant band verses time. Selected points were chosen and fit linearly to solve for the diffusion coefficients. The average diffusion coefficients were determined to be: 93.4±32.6 μm2/s for d-limonene/paraffin wax; 74.9±17.5 μm2/s for d-limonene/beeswax; 76.379±0.005 μm2/s for α-pinene/paraffin wax; 86.9±47.4 μm2/s for α-pinene/beeswax; 45.571±0.005 μm2/s for β-pinene/paraffin wax; and 96.4±22.0 μm2/s for β-pinene/beeswax. No diffusion was measured for l-carvone, cinnamaldehyde, or carnauba wax systems. It was found that d limonene, α-pinene, β-pinene, and l-carvone could dissolve beeswax and paraffin wax. Cinnamaldehyde could not dissolve any wax. Carnauba wax was not dissolved by any diffusant.