Blonde hair colour at Timba Hair and Beauty, Cardiff

Colouring

Root Smudge

From £40

From 30 mins

Root smudge is a colouring technique that blends the roots into lighter or colour-treated lengths, softening the line where new growth meets your highlights or balayage. It's a good fit for anyone in Cardiff who loves their colour but wants a more relaxed, lived-in transition as it grows out.

More information

What the Service Involves

Root smudge is usually carried out as a refining step after a lightening service, often while hair is still damp.

A demi-permanent dye, toner, or gloss is chosen close to your natural shade, typically within one to two levels
The colour is applied at the roots and gently feathered or "smudged" 1 to 3 inches down into the lengths
Processing is short, generally around 5 to 20 minutes, with the stylist checking to avoid over-darkening
Front hairline sections can be left brighter on request, keeping face-framing pieces lighter while the rest blends softly

Who It Suits

This technique works best on hair that's already been lightened.

Ideal for clients with highlights, balayage, or foilyage looking to soften banding or regrowth lines
Suited to those happy to let their natural root colour show through, rather than keeping roots ultra-pale
A good option if you want to stretch the time between full colour appointments
Can also correct harsh or uneven highlights by blurring the root transition without re-bleaching

How It Compares

Root smudge sits alongside a few related techniques, and the right choice depends on how much contrast you want.

Shadow root and root melt create a similar effect but may use a deeper or longer blend
Root smudge is generally quicker and more subtle, focused on softness rather than dramatic contrast
It's often priced as an add-on to a highlight or balayage appointment rather than a standalone colour service

Aftercare and Longevity

Because the formula is demi-permanent, the result fades gradually rather than growing out with a hard line.

Use a colour-safe, sulphate-free shampoo to protect tone and shine
Wash with cooler water where possible and limit heat styling
Nourishing conditioners or masks help maintain condition, especially on porous, previously lightened hair
Expect to refresh the smudge periodically alongside your regular colour visits, something our colour team, including Ceri O'Brien, can advise on at your next appointment

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Frequently Asked Questions

What is a root smudge?

It's a colouring technique where a demi-permanent dye or toner is applied at the roots and softly feathered into the lengths, blurring the line between natural regrowth and lighter, colour-treated hair.

How much does a root smudge cost at Timba?

Root smudge starts from £40, though the final price depends on your hair length and the level of blending needed.

How long does the appointment take?

The service typically takes from 30 minutes, with processing time usually around 5 to 20 minutes depending on the formula and desired result.

Do I need highlights or balayage first?

Root smudge works best on hair that's already been lightened, as it's designed to soften the contrast between darker roots and brighter lengths.

Will my roots stay bright at the front?

You can ask your stylist to leave face-framing sections brighter and focus the smudge on the middle and back, keeping some dimension near your hairline.

How is root smudge different from a shadow root?

Both soften root transitions, but shadow root and root melt often create a deeper or longer blend, while a root smudge tends to be quicker and more subtle.

How long does the colour last?

Since it's a demi-permanent or toner-based formula, it fades gradually over time and is usually refreshed alongside your regular colour appointments.

What aftercare do you recommend?

Use a colour-safe, sulphate-free shampoo, wash with cooler water where possible, and limit heat styling to help the tone and shine last longer.

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