Overview and Effects
Ultrafine bubbles (UFBs) penetrate scalp pores and the texture of the skin, washing away fine soils.
Test
Comparison after scalp washing

| Test overview | Using a showerhead without fine bubble functionality, UFB water was applied to the right side of the scalp and tap water (temperature 40℃) to the left side for 20 seconds, and soil removal was compared immediately afterward. |
| Test product | SHIBATA ENGINE |
| Test subjects | 3 men |