1 / 7L’Oréal Paris Casting Crème Gloss 645 Amber Red Semi-Permanent Hair Dye
L'Oreal Paris: L’Oréal Paris Casting Crème Gloss is a semi-permanent hair dye in shade 645 Amber Red. It is an ammonia-free, conditioning colour presented as a lower-commitment option, with the listing claiming gloss and colour lasting up to 32 shampoos.
At a glance
- Semi-permanent, ammonia-free colour in shade 645 Amber Red.
- The product description says it contains a 10% Glycolic Gloss Complex and claims up to 3x more gloss and up to 4x silkier hair.
- Listing instructions say to patch test 48 hours before use and wear gloves when mixing and applying.
Reference price: £10.99
Price checked: 13 Nov 2026
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Pros and cons
Pros
- The semi-permanent format offers a less permanent colour commitment than permanent dye.
- The listing describes the formula as conditioning and ammonia-free.
- Customers report that application is easy and the finish can look shiny.
Technical specifications
14 specifications| Brand | L'Oreal Paris |
|---|---|
| Model | 3600520987835 |
| Shade | 645 Amber Red |
| Colour permanence | Semi-Permanent |
| Item form | Liquid |
| Hair type | All |
| Ammonia-free | Ammonia Free |
| Benefits | Nourishing |
|---|---|
| Claimed colour duration | up to 32 shampoos |
| Application time | 20 Minutes |
| Dimensions listed | 8 x 7 x 17 cm; 239 g |
| Weight listed | 0.24 Kilograms |
| Country of origin | Belgium |
| Items | 1 |
What to know before buying
Listing details to confirm
The listing gives conflicting longevity claims: up to 32 shampoos in product details and feature copy, but up to 28 washes in the manufacturer Q&A. Customer feedback also varies on shade depth, grey coverage, how long colour lasts and hair condition, so results may not match every user's expectations. Follow the packet directions and perform the stated patch test 48 hours before use. The listing describes coverage of first greys but does not establish consistent coverage for more prominent greys.
Who is it for?
A good fit for
- People seeking a semi-permanent red shade and willing to follow the packet instructions and patch-test guidance.
- Buyers interested in an ammonia-free colour product with a conditioning and glossy finish claim.
Less suited to
- People who need guaranteed grey coverage, a precisely predictable shade result or permanent colour.
Customer reviews on Amazon
- 5 stars
74% 74% - 4 stars
11% 11% - 3 stars
6% 6% - 2 stars
2% 2% - 1 star
7% 7%
Customer feedback highlights easy application and a shiny finish, while reports on the final shade, grey coverage, longevity, value and hair condition are mixed. Some users say the colour appears darker than expected, fades after around three weeks or does not cover grey, while others describe good coverage and lasting colour. These differences matter if you need a predictable shade or dependable grey coverage. The feedback aligns with treating the listed longevity as an estimate rather than a guarantee.
Positive themes
- Customers describe the dye as easy to apply.
- Customers appreciate the glossy finish.
Negative themes
- Some customers report that the colour turns out darker than expected.
- Some report inadequate grey coverage, quicker fading or an adverse effect on hair condition.
Mixed feedback
- Reports differ on grey coverage, longevity, value for money and hair condition.
Frequently asked questions
How long does the colour last?
The listing is inconsistent: some details claim up to 32 shampoos, while its manufacturer Q&A says up to 28 washes. Customer feedback also varies, with some reporting colour starts washing out after about three weeks.
Does it cover grey hair?
The listing claims grey coverage and says it is suited to blending first greys. Customer reports on grey coverage are mixed, so it is not a guaranteed choice for prominent greys.
What should I do before applying it?
Follow the packet instructions and do a patch test 48 hours beforehand. The listed directions also say to wear gloves when mixing and applying the colour.
What shade is this product?
It is listed as shade 645 Amber Red. Customer feedback indicates colour results can vary, including reports that the result looked darker than expected.
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