DMSO is only a really effective penetration enhancer at concentrations exceeding 70% -- so I wouldn't recommend it, as repeated exposure at those high concentrations might cause serious skin irritation over time. (Kurihara-Bergstrom, T., Flynn, G.L., and Higuchi, W.I., "Physiochemical study of percutaneous absorption enhancement by dimethyl sulfoxide: Kinetic and thermodynamic determinants of dimethyl sulfoxide mediated mass transfer of alkanols.")
'Phlojel' is simply garbage. Don't even get me started...
Your best bet would be to dissove the pellets in ethanol or isopropanol. Add Propylene glycol. Add Oleic or Linolenic Acid. Ratio:
50% - Ethanol
40% - PG
10% - OA or LA
What rate or % of absortion u reckon this gives?
Simple, skin-safe (for the most part), and proven effective for the transdermal delivery of steroids.