Demi Assalt Deep Line
<p>This collection narrows DEMI's Japanese hair colour to one range: the <strong>Assalt Arias Deep Natural Line</strong>. Every shade here belongs to that salon-style line, sorted by D-number depth and undertone code so you can match a precise result instead of a rough family.</p><p>The line spreads across the D-4 through D-9 depths in three undertone directions, marked WB for warm brown, CB for cool brown, and BB for the cooler blue-leaning base. That spread makes it a practical pick when you want repeatable colour and grey coverage from one consistent formula.</p>
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The DEMI Assalt Arias Deep Natural Line explained
The Assalt Arias Deep Natural Line is DEMI's salon-style colour range for natural depth and grey coverage. This guide covers how its shades are coded, how the depths compare, and how to land on the right combination of D-number and undertone.
What the Assalt Arias Deep Natural Line is
Assalt Arias is DEMI's professional-leaning colour series, and the Deep Natural Line is its natural-tone branch built for everyday depth rather than bright fashion shades. Unlike the single-use Satch sachets, this range is structured so you can repeat the same exact shade session after session. Every product in this collection sits inside that one line, which keeps the colour behaviour consistent as you reorder.
How the D-4 to D-9 depth scale works
The line spans depths from D-4 up to D-9. The number climbs as the colour gets darker, so a D-4 lands as a lighter, softer result while a D-9 sits among the deepest tones in the range. Mid numbers like D-5 and D-7 are the workhorses for most people, giving enough depth to cover grey while keeping a regrowth line that is easy to maintain.
WB, CB, and BB undertones
Each depth comes in undertone variants marked by a two-letter code. WB is the warm-brown direction and reads golden in daylight. CB is cool brown, a more neutral-to-ashy take on the same depth. BB leans coolest of all toward a blue-influenced base. Choosing the undertone is as important as the depth, because two shades at the same D-number can look noticeably different once the colour develops.
Picking a depth and undertone combination
Start with the depth that matches or slightly deepens your natural base, then choose the undertone that suits your skin and existing hair cast. If your hair already looks ashy, a CB or BB shade will sit more naturally than a warm WB. If you want a softer, sun-touched brown, the WB codes are the better fit. When you are unsure between two depths, the lower number is the safer first attempt.
Using the line for grey coverage
The Deep Natural Line is built with grey coverage in mind, and the deeper D-numbers give the most reliable result on resistant grey. Saturate the greyest areas first, usually the hairline and temples, and keep to the full development time so the colour sets fully. Because the line is consistent, once you find the shade that covers your grey well you can reorder the same code with confidence.
Why a single line helps consistency
Sticking to one colour line removes a lot of the guesswork. The D-numbers and undertone codes mean the same thing across every product here, so a D-7 WB behaves like a D-7 WB each time. That predictability is the main reason to choose the Assalt Arias range over mixing formats: your maintenance colour stays the same shade rather than drifting between brands or lines.
Ordering shades on skinsli
We stock more than ten shades from this line, covering several depths in each of the WB, CB, and BB undertones. Order the exact D-number and undertone code you settled on, since a neighbouring depth or a different letter will shift the finished colour. If your usual shade is briefly out, the closest match is the same undertone code one D-number away.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
How is the Assalt Arias Deep Natural Line different from DEMI's Satch sachets?
The Assalt Arias Deep Natural Line is DEMI's salon-style range structured for repeatable colour, while the Satch sachets are single-use home portions. This collection is built entirely from the Assalt Arias line, so the shade behaviour stays consistent each time you reorder.
What does the D-4 to D-9 depth range on Assalt Arias mean?
The range spans D-4 through D-9. The number gets higher as the colour gets darker, so D-4 is the lightest result and D-9 sits among the deepest. Mid depths like D-5 and D-7 suit most people who want grey coverage with an easy regrowth line.
How do WB, CB, and BB undertones change an Assalt Arias shade?
They mark the undertone. WB is warm brown and reads golden, CB is cool brown and sits more neutral to ashy, and BB leans coolest toward a blue-influenced base. Two shades at the same D-number can look quite different depending on this code.
Which Assalt Arias depth covers resistant grey best?
Yes, the Deep Natural Line is built with grey coverage in mind, and the deeper D-numbers cover resistant grey most reliably. Saturate the greyest areas first and keep to the full development time so the colour sets.
How do I pick the right Assalt Arias depth and undertone combination?
Pick the depth that matches or slightly deepens your natural base, then choose the undertone that suits your skin and current hair cast. Ashy hair pairs with CB or BB, while warm browns suit WB. Between two depths, start with the lower number.
How many Assalt Arias Deep Natural shades do you stock, and what substitutes if mine is out?
We carry more than ten shades across several depths in each undertone. Order the exact D-number and code you want, since neighbours shift the result. If your usual shade is briefly out, the closest match is the same undertone code one D-number away.