Garnier Olia Brilliant Color - 4.62 Dark Garnet Red
$9.99 ($1.59/fluid ounce)
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The Olia hair color offers a delightful experience with its easy application process and pleasant scent, setting it apart from traditional box dyes. Guests appreciate the vibrant, natural-looking colors that leave hair feeling soft and shiny. The product is ammonia-free and enriched with oils, ensuring a nourishing treatment while effectively covering grays. With a wide shade range and user-friendly packaging, it is a great choice for at-home hair coloring.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.4 out of 5 stars with 11523 reviews
effectiveness: 3.5 out of 5
quality: 3.57 out of 5
value: 3.45 out of 5
61% would recommend
450 recommendations
5 out of 5 stars
10 February, 2026Verified purchase
(no review title)
The best to cover grey hair and the result will last untill new baby hair appear for thick and long hair you may need two box
4 out of 5 stars
9 February, 2026
originally posted on influenster.com
Olia hair dye leaves your hair soft smooth managea
[This review was collected as part of a promotion.] I ordered and received the olia platinum black hair dye. I was so pleasantly surprised when I finally decided to apply it. It did not smell strong like ammonia like a lot of dyes do. It left my hair so soft and manageable after rinsing it out. My hair had such a glossy shine to it after rinsing the product and drying my hair. It seemed to last quite a long time in my hair as well like it didn't fade and rinse out quickly as some other brands do. I would definitely recommend this hair dye to anyone who has not tried the olia brand line yet you won't be disappointed.
5 out of 5 stars
9 February, 2026Verified purchase
(no review title)
Good product
5 out of 5 stars
Thumbs up graphic, would recommend
7 February, 2026Verified purchase
(no review title)
I like this brand and color
5 out of 5 stars
Thumbs up graphic, would recommend
4 February, 2026Verified purchase
I'll stick with this line moving fwd
this color line is fabulous. the color used, platinum black is beautiful. I'm impressed with its coverage of gray hair
5 out of 5 stars
2 February, 2026
originally posted on Garnierusa.com
Very happy
I have tried all hair coloring brands. Olia is the one I will Stay true to. The color is very natural. I get compliments all the time. Please keep producing this hair dye
5 out of 5 stars
28 January, 2026
originally posted on influenster.com
Great coverage
[This review was collected as part of a promotion.] I applied this product to my hair to cover up some blonde, it was great. Did its job of covering the blonde. My mom loved the color she asked me to buy her one!
1 out of 5 stars
27 January, 2026Verified purchase
Not even half full developer
My box looked like it had been opened and indeed it had. The developer had been tampered with there was hardly any in there. Not sure why the Target employee selected a box that was ripped and defective for my order.
1 reply from Garnier Consumer Care team - 16 days ago
Hi AS. Thank you for reaching out to Garnier. We are sorry to hear about the experience you had with the Olia Haircolor. We would like to speak with you directly about it. Please give us a call at 800-442-7643, M- F, 9am - 5:30pm, ET and let us know you contacted us through a review. It would be helpful if you could have the product available when you call, as well as providing the agent with your username. Looking forward to speaking with you.
5 out of 5 stars
Thumbs up graphic, would recommend
26 January, 2026Verified purchase
(no review title)
The color is pretty and it leaves your hair feel so soft.
1 out of 5 stars
Thumbs down graphic, would not recommend
26 January, 2026Verified purchase
Buy if you want to waste money.
I was so excited for this. It smells good. But sadly absolutely Zero gray coverage. I’ve it’s comical how ineffective this was. The nozzle tip on the bottle required me to use another tool to brush it into roots. I have dark brown hair. Followed instructions plus 15 min and i have no additional coverage. I’d recommend L’Oréal root rescue as a far superior alternative for grays but they were sold out.
1 reply from Garnier Consumer Care team - 17 days ago
Hello Atxplantlover! We are very sorry to hear that the Olia 3.11 Darkest Platinum Brown did not provide the gray coverage you needed. Our Olia formula is unique because it is 60% oil-based and ammonia-free, which is designed to provide a pleasant scent and high-shine results; however, for very resistant or stubborn gray hair, ammonia-free formulas can sometimes require a more concentrated application to fully penetrate the hair fiber. To improve coverage in the future, we suggest applying the color to your most resistant gray areas first and ensuring they are completely saturated. Regarding the applicator, we appreciate your feedback, as the nozzle is designed for precise parting, but for root-focused application, using a tint brush—as you mentioned—is often a great way to ensure the formula is pressed firmly into the hair for better absorption. While Root Rescue is indeed a fantastic quick-fix for grays, if you are looking for a more permanent solution within the Garnier range, our Nutrisse line is specifically formulated to handle 100% gray coverage. Your feedback is very important to us as we strive to improve the performance of our oil-powered color.
1 out of 5 stars
11 January, 2026
originally posted on Garnierusa.com
Color fading out the hair after a week
The hair dye is starting to fade and is getting out of the hair and i dyed it last week this is a really bad product. I can see my blonde hair coming back but last week it was pretty dark but now it’s just getting blonder.
1 reply from Garnier team - 1 month ago
Hi mmsam11, We are sorry to hear about the experience you had with our Olia Hair Color 5.03 - Medium Neutral Brown We would like to help! Please call Garnier @ 800-442-7643 M-F 9:00am-5:30pm ET., and provide case #44774246. We look forward to your call!
5 out of 5 stars
7 January, 2026
originally posted on Garnierusa.com
Best color I have used
Have been using this product for at least a year. I'm 70 yrs old. Don't know how grey I am because I always have dyed hair but it covers my hair completely No Greys! Hair is so shiny and soft. Olio lasts longer than other products I use. Only problem I have is can't find this shade locally I have to do mail order.
5 out of 5 stars
5 January, 2026
originally posted on influenster.com
Least Damaging Black Dye I’ve ever tried
[This review was collected as part of a promotion.] Everyone knows black box dyes are a dreadful no no, THIS IS NOT ONE OF THOSE DYES. I dye really easy and no damage leaving my hair softer than before. I would say the
5 out of 5 stars
4 January, 2026
originally posted on influenster.com
Excellent root coverage with no residue, leaving h
[This review was collected as part of a promotion.] I really enjoyed using Garnier Olia 2.0 Soft Black. The application was easy and smooth, and I loved that it has no ammonia. The scent was mild and not overpowering. It covered my roots evenly and blended perfectly with the rest of my hair, giving a very natural and rich black color. After rinsing, there was no heavy residue left on my scalp or hair, and my hair felt clean, soft, and nourished. The color looked glossy and healthy, covered my grays completely, and didn’t dry out my hair. Even after several washes, the color stayed vibrant with no dullness.
5 out of 5 stars
Thumbs up graphic, would recommend
2 January, 2026Verified purchase
Great Product
easy to mix and apply! be sure to add a bit of water and lather well after it sits for 30 min BEFORE you rinse it.
3 out of 5 stars
2 January, 2026
originally posted on influenster.com
Overall good dye
[This review was collected as part of a promotion.] The dye was good . Made a difference and easy application root to end coverage . The consistency was good . It dried great and didn't burn the scalp
1 reply from Garnier team - 1 month ago
Hi tf24_9005, Thank you, for your wonderful review! We're so glad our product met your expectations. Thanks for giving it a try!
5 out of 5 stars
30 December, 2025
originally posted on garnier.ca
Greatr
Blended with honey and propolis to repair and protect hair in our paraben free gentle formula.
4 out of 5 stars
29 December, 2025
originally posted on influenster.com
Ammonia free and smells good! But wasn’t my favori
[This review was collected as part of a promotion.] I think this was okay. It wasn’t my favorite but I like how there was no ammonia! We used it on my sisters hair and it didn’t dry it out. In fact, I was surprised that it looked pretty healthy still after!
4 out of 5 stars
29 December, 2025Verified purchase
4.0 will turn your hair off black.
I bought this based on seeing results on TikTok. It varies. I purchased 4.0 darkest brown and it was black. Yes, usually hat color is darker at first but usually after about 2-3 washes it shows its true color and I’ve had it for about 2 weeks and a half and nothing has shined through. Therefore, coverage was excellent but if you’re hoping for dark brown. You will 100% get black. At least an off black. I can only imagine how dark their black eyes are. Very pigmented. It evened out any brassiness I had to give it a more black hue. I am debating color oops’ing this off to see if I can lighten it. I think 3 shades lighter would have given me the results I’d want. This was coming from medium brown hair.
5 out of 5 stars
Thumbs up graphic, would recommend
27 December, 2025Verified purchase
Best drugstore hair color for damaged hair.
Best hair color brand for damaged hair. Even color. Hydrating. No smell. No patchy but natural looking color. I haven’t found a healthier alternative hair color than this and I’ve tried several other brands which left my hair feeling like a straw.