Is Olia less effective than a hair color with ammonia?

No, even though Olia does not contain ammonia it's just as effective as a classic hair color with ammonia

How effective is Olia on grey hair?

Olia is a permanent hair color and delivers on up to 100% grey coverage for up to 6 weeks.

Many brands have oils nowadays… How is Olia different?

When a hair color contains oil, it is usually in the conditioner. In Olia, the oil is concentrated in the colorant itself to boost the coloring process by propelling color deep into the hair fiber.

What if only my roots need coloring?

You may need to vary the development time throughout your hair. Follow the instruction leaflet for timing and application techniques. Use our step by tep tool or watch the how-to video.

How much product should I use to get full hair coloration?

Like all hair coloring, it depends on your hair length and thickness. For medium to long hair use 2 boxes. For long hair or hair that is very thick, you may need to use more than 2 boxes.

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Garnier Olia Hair Color, Ammonia-Free Permanent Hair Dye, Oil-Powered Formula for 100% Gray Coverage and 3x Shinier Hair, Vegan & Cruelty Free, 4.0 Dark Brown, 2 Count

Garnier Olia Hair Color, Ammonia-Free Permanent Hair Dye, Oil-Powered Formula for 100% Gray Coverage and 3x Shinier Hair, Vegan & Cruelty Free, 4.0 Dark Brown, 2 Count

Product ID: 64980447

Details

Brand
Garnier
Color
4.0 Dark Brown
Item Form
Cream
Package Information
Box
Product Benefits
Hair Coloring

⏳30 min full cure time for lasting color

🌿60% oil blend for deep nourishment

🛡️100% gray coverage up to 6 weeks

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VT9181

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Details

Brand
Garnier
Color
4.0 Dark Brown
Item Form
Cream

Description

✨ Oil-powered color that shines as bright as your ambition!

AMMONIA FREE GENTLE - Say goodbye to harsh odors and damage—this ammonia-free formula protects hair strength and vibrancy.
FLAWLESS GRAY COVERAGE - Achieve 100% gray coverage that lasts up to 6 weeks, perfect for busy professionals who demand reliability.
OIL POWERED BRILLIANCE - Experience 3x shinier, healthier hair with a unique 60% natural flower oil formula that nourishes while coloring.
EFFORTLESS AT HOME APPLICATION - Complete kit with easy-to-follow instructions lets you skip the salon and refresh your look on your schedule.
VEGAN CRUELTY FREE CONFIDENCE - Join the conscious beauty movement with a formula free from parabens, silicones, and animal-derived ingredients.

Garnier Olia Hair Color is a permanent, ammonia-free hair dye powered by a 60% natural flower oil blend that delivers 3x shinier, healthier hair with 100% gray coverage lasting up to 6 weeks. This vegan and cruelty-free formula offers a gentle, non-drip application and salon-quality results at home, making it the perfect choice for professionals seeking vibrant, long-lasting color without compromise.

Specifications

ASIN	B07BVVPMVX
Best Sellers Rank	#1,123 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #16 in Hair Color
Brand	Garnier
Brand Name	Garnier
Color	4.0 Dark Brown
Container Type	Box
Customer Reviews	4.4 out of 5 stars 19,064 Reviews
Full Cure Time	30 Minutes
Global Trade Identification Number	00603084554775
Hair Color Permanence	Permanent
Hair Type	All
Item Form	Cream
Item Weight	15.31 Ounces
Manufacturer	Garnier
Manufacturer Part Number	0603084554775
Material Features	Natural
Material Type Free	Ammonia Free, Paraben Free, Phthalate Free, Silicone Free
Model Number	0603084554775
Number of Items	2
Package Information	Box
Product Benefits	Hair Coloring
Recommended Uses For Product	Oxidization Hair Color
Set Name	Complete Hair Dye Kit
Suitable Hair Color	Dark Brown
UPC	603084554775
Unit Count	2 Count

Reviews

A**A

29.03.2026

S**E

6.04.2026

T**R

2.04.2026

V**A

11.02.2026

A**R

30.04.2026

L**N

16.09.2025

L**S

6.03.2026

K**.

20.01.2026

J**N

6.09.2025

M**Y

10.11.2023

V**A

6.05.2022

X**L

27.07.2023

K**I

16.05.2021

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