| 100% | PROBIOTIC | 9 | Substance that promotes growth of good bacteria |
| 49% | PROBIOTIC | 9 | Substance that stimulates good digestive bacteria |
| 46% | MILDEWWEATHER | 13 | Climate that promotes the growth of powdery fungus? |
| 36% | LYE | 3 | Substance that's a homophone of a falsehood |
| 36% | DYE | 3 | Substance that changes the shade of your hair |
| 36% | ALOT | 4 | "___ of good that would do": 2 wds. |
| 36% | ALOT | 4 | "___ of good that would do!": 2 wds. |
| 36% | ALOT | 4 | "___ of good that would do" (2 wds.) |
| 36% | LOT | 3 | "A fat ___ of good that did!" |
| 35% | ADA | 3 | Organization that promotes good oral health: Abbr. |
| 35% | ALOT | 4 | "___ of good that would do me!": 2 wds. |
| 35% | LAVA | 4 | Substance that flows out of a volcano |
| 35% | BOTOX | 5 | Substance that gets rid of frown lines |
| 35% | AFAT | 4 | "__ lot of good that'll do you" |
| 35% | AFAT | 4 | "___ lot of good that'll do me!" |
| 35% | TAR | 3 | Substance that's an anagram of 34- and 43-Across |
| 35% | PREBIOTIC | 9 | Compound that promotes healthy bacteria in the gut |
| 35% | ASPCA | 5 | Group that promotes humane treatment of pets: Abbr. |
| 35% | RETARDANT | 9 | Flame __, substance that slows the spread of fire |
| 35% | GRAVES | 6 | Author of Good-Bye to All That: Robert __ |
| 35% | ATOMICENERGYACT | 15 | Legislation that promoted peaceful uses of nuclear resources |
| 35% | ACIDS | 5 | Caustic substances that are the opposites of bases |
| 34% | RAISING | 7 | Promoting the growth of |
| 34% | COMPOUNDS | 9 | Substances that are mixtures of 2 or more elements |
| 34% | DYE | 3 | Substance that might change the color of your hair or your food |
| 33% | ELLA | 4 | ___ International Festival, event that promotes the empowerment of queer women |
| 33% | SULFA | 5 | Kind of drug that inhibits bacteria |
| 33% | DAYS | 4 | "... those were the best ___ of my life..." |
| 33% | DEI | 3 | Organizational frameworks that promote the fair treatment of all people (Abbr.) |
| 32% | ILL | 3 | Kind of wind that blows no good |