Garnier Olia Brilliant Color - 5.3 Medium Golden Brown - 6.3 fl oz: Ammonia-Free, Paraben-Free, Vegan, Permanent Hair Color
$9.99 ($1.59/fluid ounce)
Color FamilyBrown
Color5.3 Medium Golden Brown
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Guests are saying
This hair dye product has received positive feedback for its easy application, gentle formula, and impressive grey coverage. Guests appreciate the pleasant scent and the way it leaves hair shiny and soft. Many have noted that it provides vibrant color results without the harshness typically associated with hair dyes. While some guests experienced issues with color longevity, the overall consensus is that this product is a reliable 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 11640 reviews
effectiveness: 3.52 out of 5
quality: 3.57 out of 5
value: 3.46 out of 5
61% would recommend
465 recommendations
2 out of 5 stars
Thumbs down graphic, would not recommend
24 June, 2026Verified purchase
If you...
If you have a sensitivity to hair color, this might not work for you. Thank God for Benadryl! I broke out every place that hair color touched my skin. Oh go figure... the color was pretty.
5 out of 5 stars
19 June, 2026
originally posted on Garnierusa.com
Pleasantly surprised, I got box color results!
I was so nervous to try and color my light brown hair that was color treated. It had been 6 months since my last color, but I used a professional custom home service and it was never quite right. My hair pulls red easily and I have to tone a lot. I have a lot of chemical sensitivities so the semi permanent colors had more of an effect on my skin than the permanent because they washed out and I was exposed every wash. I just can't do ammonia or bleach anymore because of asthma and dry scalp. I can't afford the salons and have been cutting my hair and doing my own color since the pandemic in 2020. I watched a lot of color theory videos and many try on simulations for every company. I was prepared to suffer through an ammonia process until I saw this and saw that it had no silicones and parabens, which I have to strictly avoid in all products now. I can't find it anywhere on the box, but I am sure I read somewhere that Olia doesn't pull brass and that's why I chose it. The try on tool was also very useful in choosing the color. I did go with the lighter color as suggested. My light brown/dark blonde was very dull from medical issues. I wasn't expecting more than a shine and really expecting a reddish dark blonde as that's usual for my hair. I can't believe I got the box color results. I chose the lightest ash blonde hoping it would be enough coolness to give me a golden natural blonde with no brass. I got the darkest results color on the box and I'm so happy. I did use one purple tone rinse before I dried it the first time, but I didn't need it. It was a temporary one and actually dulled the final result a little. The second wash I held off the purple and used a good shampoo to clarify and it's so much shinier and brighter. I followed the directions exactly with very dirty hair and timing, though my hair is so short I really do an all over application quickly and then let it set for the full time. I am so happy with this result. Now I wonder if I use the same color or go to the 9 so it doesn't go blonder. I guess my roots will still need this color. My hair feels nice and my scalp is not drier than before. Since I can avoid toners it's a win and I can work on my scalp in between colors. My hair is short because of thin patches after menopause and medication. I don't have gray yet, so this gentle color gives me time to grow my hair back. I really recommend trying it if you need a gentle color and want to avoid brass. I'm allergic to nearly everything in beauty. I did do a patch test and strand test, though my strand test was darker than my beautiful final result, probably because my mixture was off.
5 out of 5 stars
Thumbs up graphic, would recommend
16 June, 2026Verified purchase
Love
Love this product!
5 out of 5 stars
Thumbs up graphic, would recommend
10 June, 2026Verified purchase
(no review title)
great
5 out of 5 stars
6 June, 2026Verified purchase
(no review title)
Love, not damaging on hair.
5 out of 5 stars
27 May, 2026
originally posted on influenster.com

Compliments Galore
[This review was collected as part of a promotion.] This worked really well and I am so happy with the coverage I received. I have dark brown hair and I wasn't sure it would even be noticeable. Everyone has complimented me on the color! And it doesn't have a harsh chemical smell either!
5 out of 5 stars
27 May, 2026
originally posted on influenster.com

It doesn’t damage your hair
[This review was collected as part of a promotion.] After using Olía my hair looks radiant, it give you a natural glow on your hair, after using it your hair feels soft, definitely will recommend to family and friends
5 out of 5 stars
24 May, 2026
originally posted on influenster.com

Definitely worth the value
[This review was collected as part of a promotion.] Amazing product, doesn’t stain the skin or irritate it easy to prepare there’s zero discomfort and has great texture definitely with the price nice and economic amazing product
5 out of 5 stars
16 May, 2026Verified purchase
(no review title)
Nice coverage non ammonia gentle on scalp no itching
1 out of 5 stars
Thumbs down graphic, would not recommend
8 May, 2026Verified purchase
SAVE YOUR MONEY! GARBAGE
Awful. Did not cover grays, faded after one wash. Do not recommend
5 out of 5 stars
5 May, 2026
originally posted on garnier.ca
Great enhance
(This review was collected as part of a promotion.) Love this color 👌 I would love to try this one its very nice 😊
5 out of 5 stars
Thumbs up graphic, would recommend
2 May, 2026Verified purchase
Olia medium brown
Full coverage. Leaves my hair shiny and full. Great grey coverage.
5 out of 5 stars
Thumbs up graphic, would recommend
1 May, 2026
(no review title)
I Definitely want to purchase two boxes of this hair color I've only have one box of it I do recommend red color my favorite shade i love it
5 out of 5 stars
Thumbs up graphic, would recommend
23 April, 2026Verified purchase
(no review title)
5.03 Medium Neutral Brown is the best brown color accuracy. The grey coverage is excellent and it kept my hair healthy looking.
1 out of 5 stars
10 April, 2026Verified purchase
Do not purchase.
This was a waste of not only money, but time. Also, there were missing items.
1 reply from Garnier Consumer Care team - 2 months ago
Hello Cori! We are truly sorry to hear that your coloring experience with Olia was disappointing and that your kit was incomplete. Providing everything needed for a successful, ammonia-free application is a standard we take very seriously, and it is unusual for components to be missing from our packaging. To ensure a smooth process in the future, we suggest laying out all items from the box—the developer, colorant, applicator, and conditioner—on a flat surface before starting to ensure everything is ready for use. For the most vibrant results with our unique oil-powered formula, applying the mixture to dry, detangled hair and ensuring full saturation will help you achieve the rich, brilliant color you expect. Should you encounter any issues with a product in the future, we recommend retaining the box and batch code as this information is vital for our quality control teams to investigate the matter thoroughly.
5 out of 5 stars
8 April, 2026Verified purchase
(no review title)
Great hair color
4 out of 5 stars
Thumbs up graphic, would recommend
7 April, 2026Verified purchase
(no review title)
My hair is always so soft after using this brand! I love it and the color always lasts awhile for me! I totally recommend this color if you are in to dark hair!
5 out of 5 stars
31 March, 2026
originally posted on influenster.com

Will leave your hair hydrated and smooth!
[This review was collected as part of a promotion.] I used this on a small patch of hair to see how it was and after one use, it was so hydrated and smooth! The instructions were clear even in my dark hair I saw a difference just like the box says! I loved the shade!
5 out of 5 stars
Thumbs up graphic, would recommend
23 March, 2026Verified purchase
Meets expectations.
Product matched my expectations, easy application, good colour coverage. Covered greys well as well as previous colour. Did not have a strong scent and easily washed out and off skin where it accidentally got on my skin.
2 out of 5 stars
15 March, 2026
originally posted on influenster.com

Not impressed
[This review was collected as part of a promotion.] This box color did very little for my hair. I have naturally dark brown hair and it was lightened maybe one shade. It did nothing to cover my grays. Even now as it has grown out, you can barely see the line between my natural hair and the hair colored with the Olia. The process to preparing it was just like any other box dye and the application was just as easy. My hair texture was slightly less soft but nothing a good conditioner doesn’t fix. Overall, I wouldn’t go with this brand again because of how little it did for the grays.
1 reply from Garnier team - 3 months ago
Hi MalikaB, Thank you for sharing your thoughts regarding 3.11 - Darkest Platinum Brown. We appreciate your comments! Thanks for giving it a try!