Turn Heads with Deep, Permanent Black Sapphire Hair

Discover Smart Beauty Black Sapphire Hair Dye — a deep permanent black hair colour designed to deliver rich blue-black depth, exceptional shine, and salon-quality performance at home.

Whether you want a full head transformation, a bold dark refresh, or elegant cool-toned depth, Black Sapphire creates an intense multidimensional finish that looks glossy, polished, and beautifully even.

Perfect for anyone who wants statement dark hair colour without salon complexity.

Why Customers Love Black Sapphire 💙🖤

• Permanent deep black colour with cool sapphire reflects

• Brilliant shine and soft-touch finish

• Grey blending coverage

• Built-in Plex technology that helps protect, rebuild and restore hair during colouring

• Helps maintain hair strength while colouring

• Vegan formula

• Cruelty-free

• Made in the UK

• Easy home application

Powered by Plex Technology ✨

Unlike ordinary permanent hair dyes, Smart Beauty Black Sapphire includes Plex technology designed to support the hair while colouring.

Plex works throughout the colouring process to:

• Protect the hair structure during colour development

• Rebuild weakened bonds that can be stressed during colouring

• Restore softness, smoothness and shine

This means you can achieve rich sapphire-black colour while helping hair feel healthier, smoother and more resilient after colouring.

Who Is It Best For?

Black Sapphire works beautifully if you want:

• Deep black colour with cool blue reflects

• A glossy dark finish with extra dimension

• Elegant fashion-led dark hair colour

• A statement black shade with refined cool undertones

Suitable for most natural hair bases.

What Makes Smart Beauty Different?

Unlike standard box dyes, Smart Beauty focuses on complete colouring solutions:

• Carefully selected European ingredients

• Built-in hair-protecting Plex care

• Clear step-by-step guidance

• Reliable colour performance

• Safe home colouring confidence

Your colour result is designed to be achievable even if you are colouring at home for the first time.

Expected Colour Results

On Blonde Hair

Deep dramatic blue-black intensity

On Light Brown Hair

Rich black with visible sapphire depth

On Dark Hair

Subtle cool sapphire reflects in light

How to Apply

• Perform a patch test 48 hours before colouring

• Apply evenly to dry hair

• Leave to develop following instructions

• Rinse thoroughly

• Allow Plex care to continue supporting softness and shine

Pro Tips for Best Results ✨

• Apply evenly for full colour saturation

• Use sulphate-free shampoo to protect shine

• Avoid excessive heat immediately after colouring

• Maintain cool depth with colour-safe hair care

Frequently Asked Questions

Is this suitable for grey hair?
It blends grey beautifully while delivering deep dark coverage, though results vary depending on hair texture and grey percentage.

How long does Black Sapphire last?
Permanent colour remains rich for weeks, with cool reflects softening gradually over washes.

How can I maintain the sapphire tone between applications?
Using colour-safe hair care helps preserve shine, cool depth and overall richness between colour applications.

Will it damage my hair?
The built-in Plex system helps protect, rebuild and restore hair during colouring for a gentler colouring experience.

Can I use it over previously coloured hair?
Yes, but final results depend on your current colour base.