In short
- Glossing is a semi-permanent demi colour that seals the cuticle and adds shine — not the same as a glaze.
- Lasts 4–6 weeks; ideal between full colour appointments.
- London prices: £45–£120 depending on the salon tier.
- Pair with bond repair for chemically processed hair.
Glossing is the most-booked salon add-on in London in 2026. It is not a new technology — but the formulations have improved enough that the result genuinely justifies the booking.
Gloss vs glaze
A glaze is purely conditioning — silicone-based shine that washes out in 2–3 shampoos. A gloss is a low-ammonia demi-permanent colour that deposits subtle tone, neutralises brassiness, and seals the cuticle for 4–6 weeks.
When to add bond repair
If your hair is bleached, lifted more than two levels from natural, or you use heat daily, ask the colourist to layer in a bond repair step (Olaplex No.1 + 2, or K18 Pro). Cost typically £15–£30 added; the difference in feel after 6 weeks is significant.
Frequently asked
Common questions
How long does a hair gloss last?+
4–6 weeks. Tone fades first; shine lasts the full duration.
Can I gloss at home?+
Yes — boxed demi-permanent glosses from L'Oreal, Wella and dpHUE produce reasonable results, though tone control is harder.
Is glossing damaging?+
No — being ammonia-free and low-developer, it sits in the lowest-impact category of colour services.
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