10 Best Semi Permanent Hair Dye Bright Colours in The UK

Last updated on 12/08/2025

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Why We Love It

Gorgeous vibrant blue color.
Revives dull hair instantly.
No conditioner needed after.

Main Highlights

Wella Color Fresh Mask Blue, blue hair dye;
Professional haircare colour depositing hair mask hair treatment;
Semi permanent hair dye gloss, hair mask revives hair colour;
Other colours include semi permanent hair dye copper, semi permanent hair dye purple, semi permanent hair dye pink;
To be applied after shampoo; No need for conditioner;

Crazy Color Vibrant Rebel UV Semi-Permanent Duo Hair Dye. Highly Pigmented Neon Pink Conditioning & Oil Nourishing Vegan Formula | No Bleach or Ammonia | 200ml

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Why We Love It

Highly pigmented Neon Pink color.
Nourishes with natural oils.
PETA-approved vegan formula.

Main Highlights

CRAZY COLOR: The highly pigmented Rebel UV hair dye deposits an intense colour gently. Packed full of oils, our formula conditions as it delivers a Neon Pink colour.
READY TO USE AT HOME: With no ammonia and bleach, you can achieve your Neon Pink hair colour without damage. The lighter your hair, the more vibrant the shade.
NO DAMAGE DYE: With Raspberry Seed, Sunflower Seed and Avocado Oil, our gentle formula nourishes your hair as it colours. Our Rebel UV semi-permanent colour coats the outside of the hair, so is ideal for promoting good hair health, especially after bleaching.
VEGAN FORMULA: We never test on animals, all our Crazy Color products are PETA-approved, 100% vegan and cruelty-free. We are also PPD-Free, Gluten Free and Paraben Free!
MADE IN UK: Our Rebel UV formulas are made in the UK. Our semi-permanent shade promotes gentle hair colouring on bleached, pre-lightened and natural hair.

Manic Panic High Voltage® Classic Cream Formula Colour Hair Dye 118ml (Electric Amethyst™)

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Why We Love It

Vibrant colour manic panic dazzles.
Semi-permanent for flexible styling.
100% vegan, PPD and ammonia-free.

Main Highlights

Classic High Voltage Semi-Permanent Hair Dye
Volume: 118ml
Free From: PPD Free, Gluten Free, Ammonia Free, Resorcinol Free, Phthalate Free, Vegan Friendly, Cruelty Free
Duration: 4 - 6 weeks
Patch Test: Always perform a patch test 24-48 hours before use, following instructions on the packaging.

Knight & Wilson Colour-Freedom 150ml Mystic Purple Semi-Permanent Hair Colour - Ultra-Vibrant Vegan Friendly Colour Mask with Shine Booster Complex - Ammonia Free Colour Lasts Up To 6-10 Washes

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Why We Love It

Gentle and effective formula.
Large tube for multiple applications.
Boosts natural-looking shine.

Main Highlights

GENTLE & EFFECTIVE FORMULA: Break away from permanent colour, peroxides and harsh chemicals with a purple hair dye formula that boosts colour penetration and fades out in 6-10 washes.
"LARGE TUBE: Colour-Freedom Ultra Vibrant shades come in a Extra Large tube - 150ml. The more product the better as this allows for multiple applications, keeping your bold, bespoke hair shade vibrant and fresh. (Multiple applications will depend on length and thickness of the hair.) EASY MASK APPLICATION: Professional non-drip formula goes on easily for beautifully even, radiant results from your semi-permanent pink hair dye."
GO VIBRANT OR PASTEL: Mix and play to reflect your style. Choose between bold colour or delicate pastels by adding Colour-Freedom Pasteliser to your purple temporary hair dye.
FUN & VERSATILE: Perfect for full head application or effects such as streaks, dip dye or ombre.
BOOSTS SHINE: unique Shine Booster Complex technology combines shea butter and argan oil for a deep conditioning formula that adds natural looking shine.

Schwarzkopf LIVE Colour Drops, Vegan, Semi-permanent, Red Hair Dye, Lasts 2 to 12 Washes, Fiery Red 30 ml

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Why We Love It

Lasts up to 12 washes.
Great for blonde hair.
Vegan and silicone free.

Main Highlights

Customised colour: Simply mix this hair dye with conditioner for a customisable intensity and an array of different shades - the more drops, the more intense the colour result
Flexible colour: With up to 30 uses per bottle, you can experiment with this temporary hair colour to find your favourite shade - whether bold or subtle
Temporary colour: The fiery red hair colour drops last 2-12 washes, depending on the number of drops used, meaning you can change your colour as often as you like
For best results: These temporary red hair dye drops are designed for use on bleach blonde to dark blonde hair and allow you to create your own unique shade
Caring formula: The vegan* and silicone-free formula of these temporary hair dye drops is nourishing and leaves hair looking healthy and soft

Rebellious Colours 100% Vegan Semi Permanent Hair Dye Colour (100ml), bright Neon shades that glow under UV Blacklight, Vegan & Cruelty free (Neon UV Pink)

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Why We Love It

Super bright Neon colours glow.
Made only from vegan ingredients.
No harmful chemicals inside.

Main Highlights

VEGAN - Made only from vegan ingredients with no animal by-products. Made in the UK
NEON COLOURS - Super bright Neon colours which Glow under UV blacklight
COLOUR & CONDITIONS - hair dyes are gentle enough for frequent use, condition your hair and restores vibrancy
LONG LASTING - Long lasting colours, smears less, No Peroxide, No Ammonia, No PPD
QUALITY - No harmful chemicals in Rebellious hair dye. AVOIDING hair damage associated with chemical based hair colours

Bleach London Curious Orange Semi-Permanent Hair Colour Cream - Electric Orange, Vegan, Cruelty Free, Vibrant Temporary Hair Dye 150 ml

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Why We Love It

Vibrant true clementine shade.
Vegan and PETA-approved formula.
Fades beautifully over washes.

Main Highlights

Orange you glad you found this colour? Curious Orange Super Cool Colour turns bleached hair a true clementine shade that lasts between 3-30 washes. Fades beautifully to a softer orange tone, then pastel peach then warm blonde.
Our gentle and semi-permanent Super Cool Colours are suitable for all hair types. Curious Orange Super Cool Colour works best on hair that's been lightened and toned with Champagne Super Toner. Also gives natural blonde hair for a muted orange hue.
All BLEACH LONDON products are Vegan and PETA-Approved formulas. No bleach, ammonia or parabens. Formulated with Panthenol, Hydrolyzed Soy Protein and Wheat Amino Acids for shiny, silky soft strands.
Effortless Hue: Generously applying it to clean, towel-dried hair. Leave it on for 30 minutes before rinsing. Make sure to follow all instructions provided. One bottle is perfect for short hair or coloring freshly bleached and toned roots.
Pro Tip: Keep on top of your orange pop by mixing Curious Orange with Reincarnation Bond Restoring Mask whenever your hair needs a boost. Reapply the Super Cool Colour as needed. Avoid using hot water when rinsing to preserve your colour.

Colour-Freedom Gloss Pro 150ml Tropical Aqua Semi-Permanent Hair Colour - Ultra-Vibrant Vegan Colour Mask with PurePlex | Ammonia Free Colour Lasts Up To 6-10 Washes

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Why We Love It

Vibrant, glossy hair colour.
Repairs and strengthens hair.
Vegan and cruelty-free.

Main Highlights

New Colour Freedom Gloss Pro Semi Permanent Hair Colour with PurePlex for the ultimate truly vibrant glossy hair colour result and safer hair colouring.
Clean Beauty: At Knight & Wilson, we don't believe in compromising your health, or the environment, for results. We're committed to making clean, safe products that deliver professional results, free of ingridients linked to harmful health effects.
Customise your look with this deep conditioning, semi-permanent colour mask.
PurePlex Bond Reconstructing Technology: Repairs & Strengthens all hair types by restoring lost amino acids & rebuiding the natural keratin hair structure. Leaves hair nourished & revitalised, with improved suppleness, volume & shine.
Vegan Friendly and No Animal Testing.

Adore Shining Semi Permanent Hair Colour, 190 Cotton Candy

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Why We Love It

No harmful chemicals.
Infused with Aloe Vera.
Long-lasting vibrant color.

Main Highlights

No Alcohol No Peroxide No Ammonia
Contains Aloe Vera
Long Lasting Vibrant, Shining Colour
Upto 12 months life span of the product after opening
For Professional Salon Use Only.

Garnier Nutrisse Ultra Color Permanent Hair Dye, Up to 100% Grey Coverage, 8-weeks Long-Lasting Colour, No Ammonia, Vegan (Shade: 5.21 Intense Lilac)

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Why We Love It

Lasts up to 8 weeks.
Restores and nourishes hair.
Works on all textures.

Main Highlights

Garnier Nutrisse Ultra Color Vibrant Intense Permanent hair dye
Up to 8 weeks of vibrant and intense colour
The 5 oils conditioner restores hair to reveal up to 3x shinier hair and up to 3x stronger hair
Nourished hair means intense colour
Works on ALL hair textures

8.7

Excellent

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We scanned 1788 products

We reviewed these offers relevant to the Semi Permanent Hair Dye Bright Colours within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Wella, Crazy Color, Manic Panic, Knight & Wilson, LIVE, PaintGlow, Bleach London, Adore, Garnier, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Semi Permanent Hair Dye Bright Colours in the market, we considered we took a deep dive into 8941 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Wella Professional Color Fresh Mask | Temporary Color Refresh Treatment |Semi-Permanent Hair Dye | Wash Out Colour |150ml | Blue. We love many things about this product by Wella. What sets it apart from the competition is Gorgeous vibrant blue color. , Revives dull hair instantly. , No conditioner needed after.
The best value product for most shoppers and where user satisfaction is continuously the highest is Crazy Color Vibrant Rebel UV Semi-Permanent Duo Hair Dye. Highly Pigmented Neon Pink Conditioning & Oil Nourishing Vegan Formula | No Bleach or Ammonia | 200ml by Crazy Color based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Semi Permanent Hair Dye Bright Colours and the best cost-to-value ratio is Garnier Nutrisse Ultra Color Permanent Hair Dye, Up to 100% Grey Coverage, 8-weeks Long-Lasting Colour, No Ammonia, Vegan (Shade: 5.21 Intense Lilac)at Garnier with a 13% discount.
Our list of the best Semi Permanent Hair Dye Bright Colours is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Semi Permanent Hair Dye Bright Colours in The UK

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We scanned 1788 products

We concluded that: