Percepta: Predicting and interpreting skin permeability (logKp)

Description
Percepta can estimate skin permeability (logKp), which reflects how readily a compound passes through skin. These predictions are useful in dermal exposure assessment and topical formulation design.

Solution

1. Load or draw the compound structure in Percepta.
2. Select the Absolv  prediction module and navigate to Other equations in V and locate logKp (Human skin permeation)
3. Review the logKp result:
   • More negative logKp values generally indicate lower permeability (slower skin penetration).
4. Compare predicted logKp across a series of compounds to rank relative dermal absorption potential.
5. For risk or formulation decisions:
   • Use predictions as screening guidance only.
   • Supplement with in vitro or in vivo dermal absorption data where available.
6. Clearly document that predicted logKp is a model estimate, not a replacement for regulatory‑grade experimental data.