Demi Hair Dye Deep
<p>DEMI is a Japanese hair-care house, and this collection gathers its <strong>Deep Natural</strong> hair-dye line in one place. You will find the at-home Satch Cover sachets alongside the Assalt Arias salon-style range, sorted across the D-number shades from cooler blue-black tones through to warmer browns.</p><p>The shade codes tell you what you are getting. The letter pairs (BB, WB, CB) signal the undertone family, while the D-number marks the depth, so a D-4 sits lighter than a D-8. With more than a dozen variants in stock, you can match grey coverage to your natural base without guessing.</p>
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Buying guide
Choosing a DEMI Deep Natural hair dye
This guide walks through how the DEMI Deep Natural range is built, what the shade codes mean, and how to pick between the at-home Satch sachets and the Assalt Arias line. Use it to narrow down a colour before you add to cart.
What the Deep Natural line covers
The Deep Natural family is DEMI's set of natural-leaning dye shades aimed at everyday colour and grey coverage rather than bright fashion tones. Two formats sit under it here. The Satch Cover sachets are sized for home application, and the Assalt Arias Deep Natural Line carries the same depth philosophy in a salon-style range. Both share the D-number depth scale, so once you learn the codes you can read either product at a glance.
Reading the D-numbers and undertone letters
Each shade is labelled with a D-number and a two-letter undertone code. The D-number runs from lighter to darker as it climbs, so a D-4 is a softer, lighter result than a D-7 or D-8. The letter pairs describe the undertone direction: BB leans toward a blue-black or cooler base, WB sits in the warm-brown territory, and CB falls in the cool-brown range. Pairing the right depth with the right undertone is what keeps the colour from reading too flat or too brassy.
Satch sachets versus Assalt Arias
The Satch Cover and Satch Dyeing sachets are the convenience option, portioned for a single home session and marketed for both men and women. The Assalt Arias Deep Natural Line gives you a wider spread of D-numbers and undertone codes, which helps if you want a more exact match or plan to colour regularly. If you are new to the range, a Satch sachet is the lower-commitment way to test how a depth reads on your hair.
Matching depth to your natural base
Start from the colour you have rather than the colour you want in isolation. If your natural base is dark, a higher D-number such as D-7 or D-8 will blend grey strands without a harsh contrast. Lighter or greying bases often look more natural with a mid D-number so the regrowth line stays soft. When you are between two depths, the lower number is the safer first choice because going darker on a later application is easier than lifting colour back out.
Getting reliable grey coverage
Grey hair can resist colour, so saturation and timing matter. Apply to dry hair and work the product fully into the greyest sections first, usually the temples and hairline, then move through the rest. Follow the timing on the pack rather than rinsing early, since cool undertones like the BB codes need the full window to set. A second sachet may be worth keeping on hand if your hair is thick or long.
Warm, cool, and neutral results
The undertone code shapes how the final colour reads in daylight. WB shades bring warmth and suit skin tones that look better against golden browns. BB and CB shades stay cooler and tend to look more natural on hair that already has an ashy or neutral cast. If you want the most natural everyday look, match the undertone to what your hair does in sunlight, not under indoor lighting.
Buying the range on skinsli
Every shade listed here is one we currently stock, and the assortment spans more than a dozen Deep Natural variants across both the Satch and Assalt Arias formats. Because the line covers several D-numbers in each undertone family, it is worth ordering the exact code you settled on rather than a near match. If a specific shade is between restocks, a neighbouring D-number in the same letter family is the closest substitute.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
What does the D-number on a DEMI Deep Natural shade mean?
The D-number marks colour depth. It runs lighter to darker as it climbs, so a D-4 gives a lighter result than a D-7 or D-8. Pick a higher number for darker, fuller coverage and a lower one for a softer finish.
What is the difference between the BB, WB, and CB undertone codes?
The letter pair describes the undertone. BB leans cool toward a blue-black base, WB sits in warm-brown territory, and CB falls in the cool-brown range. Match the code to how your hair reads in daylight for the most natural look.
Should I choose the Satch sachets or the Assalt Arias line?
The Satch Cover and Satch Dyeing sachets are portioned for a single home session and are the lower-commitment option. The Assalt Arias Deep Natural Line offers a wider spread of D-numbers and undertones for a more exact or repeat match.
Does the Deep Natural range cover grey hair?
Yes, the Deep Natural shades are aimed at natural colour and grey coverage. For best results apply to the greyest sections first, such as the temples, and leave the product on for the full timing listed on the pack so cooler tones can set.
Which D-number suits dark natural hair?
A higher D-number such as D-7 or D-8 blends grey into a dark base without a harsh contrast. If you are between two depths, start with the lower number, since going darker on a later application is easier than lifting colour back out.
How many DEMI Deep Natural shades are in stock?
We currently carry more than a dozen Deep Natural variants across both the Satch sachets and the Assalt Arias line, spanning several D-numbers in each undertone family. Order the exact shade code you settled on, since neighbouring numbers shift the result.