Demi Self Dye Cover
<p>DEMI Self Dye Cover is a Japanese at-home hair colour range built for covering greys and refreshing roots without a salon visit. The line runs as a satchet-style colour you mix and apply yourself, and we currently carry it in deep natural shades coded D-4, D-7 and D-8 so you can match warm or neutral tones.</p><p>Each satchet pack is sized for a single touch-up, which makes it easy to keep on hand between full colours. The shades sit in the deep natural family, so they read as soft brown-black rather than a flat block of colour.</p>
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Buying guide
DEMI Self Dye Cover: shades and how to use them
This guide walks through the DEMI Self Dye Cover satchet shades we stock, what each code means, and how to get an even result at home.
What DEMI Self Dye Cover is
DEMI Self Dye Cover is a satchet-format home hair colour from the Japanese brand DEMI. It is made for grey coverage and root touch-ups, with shades in the deep natural family. Because it ships in single-use satchets, you can colour a small section or do a quick root refresh without opening a full kit.
Reading the shade codes
The shades carry codes such as D-4, D-7 and D-8. The D number tracks how deep and how warm the result reads. Lower codes lean toward a warmer brown (WB), while higher codes move into a deeper natural brown (BB). Pick the code closest to your current colour for the most seamless blend.
Warm base versus natural base
The D-4 shade in this range uses a warm base (WB), which adds a touch of red-gold warmth. The D-7 and D-8 shades use a deep natural base (BB) that stays closer to a true brown-black. If your hair shows warmth in sunlight, a WB code blends in; if it looks cool or ashy, a BB code is the safer choice.
How to apply at home
Section dry, unwashed hair and work the colour from root to tip on the areas you want covered. Greys often sit at the hairline and part, so start there. Leave the colour on for the time stated on the satchet, then rinse until the water runs clear. Wear gloves and protect clothing, since colour can stain.
Coverage and how often to repeat
A single satchet is sized for a touch-up rather than a full head, so heavier or longer hair may need more than one. Roots usually show new growth within a few weeks, so many people repeat the colour on the part and hairline first and do the lengths less often.
Choosing between the shades we carry
We currently list three deep natural shades: D-4 in a warm base, plus D-7 and D-8 in the deep natural base. If you are between shades, the lower code gives a softer, lighter-leaning result and the higher code gives a deeper finish. Matching to your roots rather than your ends keeps regrowth from looking patchy.
Aftercare for coloured hair
After colouring, give hair a day before the next wash so the tone settles. Use a gentle, colour-safe shampoo to slow fading, and limit very hot water, which opens the cuticle and pulls pigment out faster. Deep natural shades hold well, but warm bases can shift cooler over several washes.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
Which DEMI Self Dye Cover shades do you carry?
We currently stock three deep natural shades: D-4 in a warm base (WB), and D-7 and D-8 in a deep natural base (BB).
What is the difference between the WB and BB shades?
WB stands for a warm base, which adds red-gold warmth, used here in D-4. BB stands for a deep natural base, used in D-7 and D-8, which stays closer to a true brown-black with little warmth.
Does DEMI Self Dye Cover cover greys?
Yes. The range is built for grey coverage and root touch-ups, which is why it ships in single-use satchets you can apply on the part and hairline where greys show first.
How do I apply the satchet at home?
Work the colour through dry, unwashed hair from root to tip on the areas you want covered, leave it on for the time stated on the satchet, then rinse until the water runs clear. Wear gloves and protect clothing.
Is one satchet enough for my whole head?
A single satchet is sized for a touch-up rather than a full head, so longer or thicker hair may need more than one. For regular root refreshes, one satchet on the part and hairline is often enough.