Garnier Olia Ammonia Free Hair Color 8.0 Medium Blonde - Oil Powered

In this review of Garnier Olia Ammonia Free Hair Color 8.0 Medium Blonde the bottom line is straightforward: it is best for people seeking a gentle permanent dye that leaves hair hydrated and naturally toned. The standout reason to buy is the oil powered formula that claims to propel color deep into the hair while preserving silkiness and delivering long lasting color without ammonia. This product is presented as a permanent hair color offering 100% gray coverage and noticeably shinier, softer hair compared with uncolored, unwashed hair.

Key Features

• Oil powered technology: Sixty percent oils including sunflower and camellia oils help carry color deep into the hair shaft for longer lasting pigment and restored surface feel.
• Ammonia free formula: The absence of ammonia reduces the harsh chemical odor and is intended to be gentler on hair while still providing permanent coverage.
• Hydration and shine: The formula claims to leave hair hydrated, silky and up to 3X shinier than uncolored, unwashed hair, improving visible hair quality after coloring.
• 100% gray coverage: Shade 8.0 Medium Blonde is described as delivering full gray coverage while allowing natural tones to show through for a natural result.
• Clean formulation: Silicone free, paraben free, cruelty free and vegan with a delicate floral fragrance for a more comfortable application experience.
• Wide shade range: Available in many shades so users can match natural tones from rich browns to brilliant blondes and reds.

Who It's For

This product suits someone with natural hair from light blonde to light brown who wants a natural medium blonde result while maintaining hair softness and shine. It is also appropriate for shoppers who prefer ammonia free permanent color and value a formula with plant oils and a mild fragrance for a more comfortable at-home application.

People who need extremely precise salon-level color correction or who have very resistant gray hair may want to compare results on a strand test first, since some users report mixed gray coverage. Those seeking temporary or semi-permanent color, or who require dramatic high-lift lightening, should look for products formulated specifically for those purposes.

Pros & Cons

Pros

• Leaves hair feeling soft and visibly shinier thanks to the oil powered formulation.
• Ammonia free and silicone free for a milder application with a pleasant floral scent.
• Claims permanent, long lasting color with natural-looking medium blonde results and full gray coverage in many cases.
• Cruelty free and vegan, aligned with greener beauty preferences.

Cons

• Some users report inconsistent gray coverage, so performance can vary by hair type and previous treatments.
• As a permanent dye, it is not suitable for those who want a temporary change or frequent color shifts.

Specifications

Brand	Garnier
Shade	8.0 Medium Blonde
Formula type	Permanent hair color, ammonia free
Key ingredients	60% oils including sunflower and camellia oil
Claims	100% gray coverage; up to 3X shinier hair
Free of	Silicone, parabens, ammonia
Cruelty status	Cruelty free, vegan

Our Verdict

Garnier Olia 8.0 Medium Blonde is a solid choice for at-home permanent color when the priority is a gentler formula that improves hair feel and shine. It offers strong benefits for those with light blonde to light brown bases who want natural-looking coverage and softer hair after application, though people with stubborn gray may want to test a strand first. Overall it represents good value for shoppers seeking an ammonia free permanent dye that cares for hair while coloring.

Frequently Asked Questions

Will this shade cover gray hair?
Yes; the product is formulated for 100% gray coverage, though results can vary based on hair condition and prior treatments, so a strand test is recommended.

Is the formula harsh or strongly scented?
No; the ammonia free formula is milder and described as having a delicate floral fragrance rather than a strong chemical odor.

How does the oil technology affect hair?
The oil powered technology with sunflower and camellia oils is intended to deliver color deeper while improving softness, hydration and shine after coloring.