Figure 5. Patch testing and laser Doppler images of blood flow

Laser Doppler images of blood flow show how adding Arlasolve DMI to a formulation containing BPO reduces the amount of skin irritation. Measurements were compared for: a 1% SLS solution (site #1), a Croda test BPO lotion without Arlasolve DMI (site #2), a commercial leave-on lotion combining 2.5% BPO and EDG (site #3), water only (site #4), a Croda test BPO lotion with Arlasolve DMI (site #5), and a Croda test BPO-free lotion (site #6). The color-coded scale shows how the sites that are the most red have the most blood flow, and thus experience greater irritation.