Shampoo Arena
Hair type
Dandruff and flaking scalp
Visible flaking, typically Malassezia-driven seborrhoeic dermatitis.
| Ingredient | Score with vs without it | Effect | t | With | Without |
|---|---|---|---|---|---|
| Piroctone Olamine | +759 | +28.1 | 30 | 266 | |
| Steareth-6 | +385 | +15.0 | 8 | 288 | |
| Humulus Lupulus (hops) Extract | -318 | -14.4 | 3 | 293 | |
| Basic Blue 124 | -334 | -13.8 | 3 | 293 | |
| Fumaric Acid | +413 | +13.6 | 14 | 282 | |
| Salicylic Acid | +439 | +13.1 | 29 | 267 | |
| Glyoxal | +380 | +13.0 | 5 | 291 | |
| Rubus Idaeus Fruit Extract | -622 | -12.3 | 3 | 293 | |
| Triethylene Glycol | +634 | +11.4 | 21 | 275 | |
| Hydrogenated Vegetable Glycerides Citrate | -380 | -10.9 | 9 | 287 | |
| Parfum / Fragrance | +412 | +10.8 | 3 | 293 | |
| Sodium Xylenesulfonate | +496 | +10.5 | 40 | 256 | |
| Hydroxypropyltrimonium Hydrolyzed Wheat Protein | +339 | +9.9 | 3 | 293 | |
| Acetic Acid | +551 | +9.8 | 18 | 278 | |
| PEG-100 Stearate | +356 | +9.2 | 9 | 287 | |
| Tetrasodium EDTA | +455 | +9.0 | 43 | 253 | |
| Calcium Sulfate | -362 | -8.1 | 3 | 293 | |
| Sodium Citrate | +384 | +7.8 | 63 | 233 | |
| 2-Oleamido-1,3-Octadecanediol | +362 | +7.7 | 3 | 293 | |
| Coco-Glucoside | -301 | -7.7 | 109 | 187 | |
| Diazolidinyl Urea | -558 | -7.5 | 4 | 292 | |
| Iodopropynyl Butylcarbamate | -558 | -7.5 | 4 | 292 | |
| Sodium Anisate | -326 | -7.4 | 4 | 292 | |
| Trideceth-10 | +452 | +7.4 | 36 | 260 | |
| Sodium Salicylate | +384 | +7.3 | 49 | 247 | |
| Glyceryl Oleate | -283 | -7.2 | 94 | 202 | |
| Sodium Laureth Sulfate | +295 | +7.2 | 193 | 103 | |
| Trideceth-3 | +344 | +7.2 | 9 | 287 | |
| Phyllanthus Emblica Fruit Extract | +310 | +7.1 | 3 | 293 | |
| Dimethicone | +386 | +7.0 | 50 | 246 |
Effect is the difference in mean score (Elo points) between ranked shampoos that contain the ingredient and those that do not; |t| above about 2 is unlikely to be chance alone.