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I Saw Red Semi-Permanent Dye

Bright red conditioning and vegan, semi-permanent hair dye 150ml
4.3 (41 reviews)
What it does

I Saw Red is a conditioning semi-permanent hair dye that transforms hair into a vibrant, fire-engine red which lasts between 3-30 washes.

Developed by international fashion colourist Alex Brownsell and used at out award-winning salons in London and LA.

Formulated without Bleach, Peroxide or Ammonia.

Vegan and Peta-Approved.

Who it's for

Our gentle, semi-permanent hair dyes are for all hair types!

Use on lighter hair for fuller coverage, or on darker hair for a glossy tint. It also covers faded colour effectively.

For more vivid result use on bleach blonde hair.

What's in the box

1x Bottle of 150ml Semi-Permanent Hair Dye

How much one kit covers

One box is suitable for short hair or colouring freshly bleached and toned roots.

For shoulder length hair you'll need two bottles.

For long hair that's below your shoulders, you'll need three to four bottles. If your hair is very thick we recommend adding an extra bottle.

4.3
Average score from 41 reviews
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REVIEWS
Page 1 of 9

February 8, 2026

Stained my shower

Don’t get me wrong, the color was beautiful. I have long dark brown hair with blonde highlights, and after 2 bottles my hair looked gorgeous. But my WHITE shower got stained PINK, from the walls to the floor. I scrubbed it with everything i could find, and it won’t come of. I won’t be buying this dye again, and it’s a disgrace that this happened.

Norah K.

Hair Type: Wavy

Natural Hair Color: Mid to light brown

January 18, 2026

Barely showed up and only

Barely showed up and only in some lights at certain angles, let it sit for over an hour. Disappointed to be honest

Safaa R.

Hair Type: Wavy

Natural Hair Color: Dark brown

January 5, 2026

The initial colour was ok

The initial colour was ok but not as pigmented as I wanted but the colour washed out almost immediately.

Clair K.

Hair Type: Wavy

Natural Hair Color: Mid to light brown

December 18, 2025

Product amazing

Stunning fantastic

Courtney W.

Hair Type: Straight

Natural Hair Color: Black

December 11, 2025

Vibrant, perfect, easy

Very easy to use and it's the perfect shade of red.

Pia B.

Hair Type: Wavy

Natural Hair Color: Dark brown

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How to Guides
How to do hair art on buzzed hair
How to do hair art on buzzed hair
Step-by-step guide from our expert stylists on how to add hair art and colour spots to buzzed blonde hair
How to bleach a money piece at home
How to bleach a money piece at home
Step-by-step guide from our expert stylists on how to bleach and tone your fringe at home.
How to bleach & tone a buzzcut
How to bleach & tone a buzzcut
Step-by-step guide from our expert stylists on how to bleach and tone buzzed hair at home
How to bleach and tone a full head from dark brown to blonde.
How to bleach and tone a full head from dark brown to blonde.
Step-by-step guide from our expert stylists on how to bleach and tone a full head of dark hair to blonde at home.