| ROS | reactive oxygen species |
| UV | ultraviolet |
| H2 | molecular hydrogen |
| ORP | oxidation–reduction potential |
| TEWL | transepidermal water loss |
| MMPs | matrix metalloproteinases |
| Nrf2 | nuclear factor erythroid 2-related factor 2 |
| NF-κB | nuclear factor kappa-light-chain-enhancer of activated B cells |
| IL-1β, | interleukin-1 beta, |
| IL-6 | interleukin-6 |
| TNF-α | tumor necrosis factor alpha |
| AD | atopic dermatitis |
| ERW | electrolyzed reduced water |
| SD | standard deviation |
| η2 (ηp2) | partial eta squared (effect size) |
| RGB | red, green, blue (lighting system) |
| KLKs | kallikrein-related peptidases |