Olive Young best seller#3 on Olive Young

Treatroom The More Black Shampoo

Treatroom The More Black Shampoo
Our read

Why our pick wins

This one screens cleaner than ours and we are not going to argue otherwise — no PPD, no resorcinol, no developer, because it is a toner rather than a dye. It deposits semi-permanent colour that builds gradually and washes out. If you want coverage that stays put, that is the difference; if you want the shortest ingredient list, this is it.

Screening score

How they compare

Treatroom The More Black Shampoo 8.2 / 10
Levero Coloring Shampoo — PPD-Free Grey Coverage 300mlDHALIORA pick 8.5 / 10
Levero Coloring Shampoo — PPD-Free Grey Coverage 300ml See the DHALIORA pick Levero Coloring Shampoo — PPD-Free Grey Coverage 300mlScreening score 8.5 / 10
What's inside

Ingredient breakdown

28 ingredients screened

Low
Low
Coco-Betaine
Mild Surfactant
Mid
Low
Sodium Benzoate
Preservative
Low
Decyl Glucoside
Mild Surfactant
Low
Cocamide MEA
Foam Booster
Mid
Glycerin
Humectant
Low
Low
Low
Salicylic Acid
BHA Exfoliant
Mid
1,2-Hexanediol
Preservative
Low
Low
Citric Acid
pH Adjuster
Low
Niacinamide
Brightening
Low
Polyquaternium-7
Conditioning
Low
Hexylene Glycol
Humectant
Low
Caffeine
Conditioning
Low
Biotin
Anti-Hairloss Functional
Low
Butylene Glycol
Humectant
Low
Mid
Ethylhexylglycerin
Preservative
Low
Low
Low
Low
Low
Low
Low
About this comparison — This is an editorial, factual comparison. Ingredient risk reflects our own reading of publicly available safety data, an EWG-style reading. DHALIORA is not affiliated with, endorsed by, or partnered with the competitor brand. Nothing here is medical advice — always read the packaging and patch-test where indicated.