Garnier Olia Ammonia Free Permanent Hair Color 100 Percent Gray Coverage 4.0 Dark Brown Pack of 1

4.8★★★★★★★★★★12 reviews

• 5 ★10
• 4 ★2
• 3 ★0
• 2 ★0
• 1 ★0

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Write a reviewGarnier Olia Ammonia Free Permanent Hair Color 100 Percent Gray Coverage 4.0 Dark Brown Pack of 1

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• MMurugan V.21 Jun 2026
  5 ★

  Truly five Stars

  Good product (no smell) and works well.

• SSuresh G.17 Jun 2026
  5 ★

  The best at home color I've used!!!

  I'm so impressed with this color that I will never use anything else!! I used Warm Golden Mahogany on my dark brown roots, but light brown lengths, having previously died my bleached blonde hair back to my natural color. The previous color had faded and my hair is still pretty damaged, so I wanted a product that wasn't as damaging which is how I ended up with Olia. I was shocked as there is little to NO smell. None of the strong ammonia that you get with every other brand. Instructions were easy to follow and once mixed, the formula wasn't runny, allowing you to apply it without it running down your forehead. I waited the 30 minutes and showered, and was surprised to see there was NO color all over the bottom of the shower-it's like my hair literally soaked this up like a sponge. Immediately noticed my hair felt soft and not at all like it had just been colored-it didn't have that dry, Brillo pad feel that you get before conditioning. Used the conditioner in the box which is very thick and emollient, and am just SO impressed with this color! After drying it's exactly what I wanted-a pretty reddish-brown that actually has SHINE!!!! No flat, ugly one-dimensional color here, it's truly beautiful. It also managed to do what I was worried about, which is turn my lighter, dried-out ends the same color as my healthy dark roots. I have long, fine hair and I used the whole bottle... those with thicker long hair may find they need two boxes. Can't say enough good things about this product! I'm hooked for life!!

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• JJyoti M.7 Jun 2026
  5 ★

  Still very pleased after using for years

  I switched from Garnier Nutrisse to Olia a few years ago (because I figure I'm worth that extra buck), and I am really pleased with this product. Just once do I recall the coverage not being great, so now I am more careful to leave it on for a good hour. No problems since. I now buy 6 at a time via Dropy's subscription service, and invested in disposable shower caps, and that makes that one hour somewhat productive rather than being confined to the bathroom. Great color, too, very dark but rich color. I color about every six weeks. When I start to see roots, sometimes I use temporary color spray until I can color, but I try to be careful to make sure there is no color spray still on my hair when I do color it.My hair is very shiny and healthy, and after years of coloring that is saying something.

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• SShivam K.27 May 2026
  5 ★

  I give it an 8 out of 10. :)

  Having battled grey hair since I was 18 I have tried a ton of hair color products. Some I love, some I don't love and some just do their job with no excitement or disappointment.The thing I really liked about this product is from the time I was in the shower rinsing it off until the time I was drying my hair, my hair was never tangled. I think the extra oil in this product is the reason for that. Usually when you color your hair it feels kind of crunchy when you are done rinsing it out, this one was different. It felt smooth and was easy to comb through.I am pretty pleased with this brand.It was easy to mix and had enough hair color for longer hair.

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