Garnier Olia 4.0 Dark Brown, oil-powered, no-ammonia. 100% grey coverage. Luminous, long-lasting, vibrant dark brown hair color with incredible shine and softness.

Price: £9.98
(as of Feb 21, 2026 02:09:24 UTC – Details)

Dare to colour with Garnier Olia No Ammonia Permanent Hair Dye. Our 60% oil-powered formula*, with Natural Flower Seed oils and no ammonia, delivers maximum colour performance for exceptional ultra-luminous, long-lasting light chocolate brown hair with beautiful multi-dimensional undertones and up to 100% grey coverage. The vegan formula** leaves hair is smoother, free flowing with up to 3 times more shine*** Olia home hair colour has a unique sensorial application with our non-drip smooth velvety texture of the colourant cream. * In the colour cream, ** No animal derived ingredients, *** Instrumental test vs unwashed hair. How to find the perfect black shade for you: Have you ever wondered what the hair colour numbers mean? The first number of a Hair Colour is how Light or Dark the black hair dye will be, for example black shades range from 1, Deep Black to 3, Soft Black. The second number is the reflect which can be Natural (.0), Warm (.3, .4, .5, .6) or Cool (.1, .2). For example, 1.0 is a Natural Deep Black and 3.23 is a soft black with chocolate undertones. Always check the back of pack to see if it is the right shade for you What does the box include: New easier preparation, colouring your hair at home has never been easier. Box includes: 1 x develop creamer inside application bottle, Colour cream tube, 1x Silicone-free after colour care tube for a natural touch, 1 x pair of gloves and 1 x instruction leaflet.
Is discontinued by manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 48 x 70 x 160 cm; 150 g
Manufacturer ‏ : ‎ Garnier
ASIN ‏ : ‎ B009SLH80M
Item model number ‏ : ‎ 3600542243933
Country of origin ‏ : ‎ Germany
Delivery information:: We cannot deliver certain products outside mainland UK ( Details). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
Customer reviews: 4.4 4.4 out of 5 stars (31,325) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

60% oil-powered, ammonia-free formula with Natural Flower Seed oils, designed for maximum colour performance.elivers an exceptional ultra-luminous, long-lasting light chocolate brown shade with multi-dimensional undertones and provides up to 100% grey coverage.
Vegan formula ensures hair is smoother, free-flowing, and boasts up to three times more shine compared to unwashed hair.
Offers a unique sensorial application experience thanks to its non-drip, smooth, velvety texture of the colourant cream.
Each box includes a develop creamer, colour cream, a silicone-free after-colour care tube, gloves, and an instruction leaflet for easy at-home application.