PROADS Biotin Hair Color 2.0 Darkest Brown belongs to the Natural family in Color World 1. It is designed for controlled colour deposit, balanced grey coverage, neutral-natural tonal behavior, added shine and a scalp-conscious colouring experience. Powered by ProBioShine Technology and activated with CLC Complex comprising Coconut, Lavender and Citric Acid, the Low Ammonia and Low MEA formula is designed to support colour performance together with hair feel and shine. Recommended developer selection should align with the desired colour objective.
Designed for personal & professional use
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SUPPORT
Supports a stronger-looking post-colour feel.
Helps support smoother feel during the process.
Adds a conditioning feel to the system.
Supports shine and a more refined-looking finish.
4.0 Medium Brown
Natural · Neutral · Ash
Natural finish
Neutral tone with soft ash balance.
Coverage-led shade
Built for stronger grey blending and natural finish.
20 Vol primary
KeraColor aftercare + Anti-Metal Detox where needed.
Your complete system
The deposit looked even and the brown did not turn flat after rinsing.
KeraColor plus Anti-Metal Detox helped keep the finish more polished between washes.
20 Vol for standard coverage-led use. 30 Vol when the selected tone needs more visibility on a darker base. 10 Vol for deposit-led refresh. 40 Vol only for advanced lift.
Blondie is for lift-led services and pre-lightening needs. It should not be shown as a default companion for every shade.
To support cleaner prep, better recolor base, tone maintenance, and a smoother-looking finish.
