Garnier Olia Permanent Hair Color — 5.0 Medium Brown, Ammonia-Free Oil-Powered Formula for 100% Gray Coverage, 2 Count

Garnier Olia 5.0 Medium Brown is an ammonia-free, oil-powered permanent hair dye that delivers vivid medium-brown color with 100% gray coverage and noticeably shinier hair.

Olia swaps harsh ammonia for a 60% oil blend of natural flower oils (sunflower and camellia) to carry color molecules deeper into the hair fiber while minimizing odor and dryness. The kit contains a developer applicator bottle, a colorant tube, after-color conditioner, gloves, and clear step-by-step instructions — everything needed for an at-home application that aims for long-lasting, glossy results.

How does Olia achieve vibrant color without ammonia?

Instead of ammonia, Olia uses a concentrated oil system that helps distribute dye evenly and reduces the typical pungent smell of permanent color. The oils assist color penetration and leave the hair feeling softer, which supports a more reflective, shinier finish compared with untreated hair.

• 60% oil blend featuring sunflower and camellia oils
• Oil-powered delivery pushes pigments into the hair shaft
• No ammonia, silicones, or parabens in the formula
• Lower odor and a hydrated after-feel

Will this cover gray hair and how long does it last?

Garnier Olia is formulated for full gray coverage and provides lasting color that remains visible and glossy through normal wash cycles. Expect even coverage on grays with natural-looking depth and warmth that endures several weeks, depending on hair porosity and your maintenance routine.

• Formulated for 100% gray coverage
• Permanent color designed to last through routine washes
• Color longevity influenced by hair care and sun exposure
• For best results, use color-protecting shampoo and conditioner

How do I apply Olia at home for best results?

Application is straightforward: mix the colorant into the developer bottle, shake to blend the oil-rich formula, then apply to dry, unwashed hair. Process according to the included timing instructions, rinse until water runs clear, and finish with the after-color conditioner to lock in shine and softness.

• Mix colorant and developer in applicator bottle; shake well
• Apply to dry, unwashed hair; roots first for touch-ups
• Process for the instructed time (usually around 30 minutes)
• Rinse thoroughly and use the included conditioner

How many boxes do I need for different hair lengths?

Coverage depends on hair length and thickness: one to two boxes usually suffice for short to medium hair, while longer or very thick hair may require two to three boxes. Buying an extra box is a safe choice when in doubt, especially for all-over color rather than root touch-ups.

• Short to medium hair: 1–2 boxes
• Long or very thick hair: 2–3 boxes
• Root touch-ups typically need less product than full-head color
• Keep an extra box for future touch-ups

Who is this for? Garnier Olia 5.0 Medium Brown is aimed at people who want a permanent medium-brown shade delivered with a gentler, oil-based system rather than traditional ammonia formulas. It’s suitable for anyone seeking reliable gray coverage, enhanced shine, and a conditioned feel straight from the kit — ideal for at-home color changers who prefer vegan, cruelty-free options without silicones or parabens. Pair with color-protecting haircare for the longest-lasting vibrancy.

Ingredients

DEVELOPER: 1071397 AQUA/WATER/EAU, PARAFFINUM LIQUIDUM/MINERAL OIL/HUILE MINERALE, CETEARYL ALCOHOL, HYDROGEN PEROXIDE, STEARETH-20, PEG-4 RAPESEEDAMIDE, GLYCERIN, POLYQUATERNIUM-6, HEXADIMETHRINE CHLORIDE, TOCOPHEROL, PENTASODIUM PENTETATE, AFTER COLOR CONDITIONER: 1119728 A AQUA/WATER/EAU, CETEARYL ALCOHOL, BEHENTRIMONIUM CHLORIDE, CETYL ESTERS, TOCOPHEROL, TRIDECETH-6, CHLORHEXIDINE DIGLUCONATE, HELIANTHUS ANNUUS SEED OIL/SUNFLOWER SEED OIL, CAMELLIA OLEIFERA SEED OIL, AMODIMETHICONE, ISOPROPYL ALCOHOL, PARFUM/FRAGRANCE, CITRIC ACID, CETRIMONIUM CHLORIDE. F.I.L.# D180530/1 US PATENTS: 7,223,385; 7,485,289 COLORANT: 1177017 PARAFFINUM LIQUIDUM/MINERAL OIL/HUILE MINERALE, AQUA/WATER/EAU, ETHANOLAMINE, DECYL GLUCOSIDE, SODIUM LAURYL SULFATE, PEG-40 HYDROGENATED CASTOR OIL, PARFUM/FRAGRANCE, DISODIUM COCOAMPHODIACETATE, TOLUENE-2,5-DIAMINE, RESORCINOL, HYDROXYPROPYL GUAR, SODIUM METABISULFITE, EDTA, ASCORBIC ACID, M-AMINOPHENOL, HELIANTHUS ANNUUS SEED OIL/SUNFLOWER SEED OIL, LIMNANTHES ALBA SEED OIL/MEADOWFOAM SEED OIL, PASSIFLORA INCARNATA/PASSIFLORA INCARNATA SEED OIL, CAMELLIA OLEIFERA SEED OIL, HYDROXYBENZOMORPHOLINE, 2,4-DIAMINOPHENOXYETHANOL HCL, THIOGLYCERIN, TOCOPHEROL. F.I.L.# D180158/1 US PATENTS: 7,060,107; 7,988,737; 7,988,738; 8,066,781; 8,114,170; 7,494,513 US PAT PENDING SODIUM STANNATE, TETRASODIUM PYROPHOSPHATE, PHOSPHORIC ACID. F.I.L.# D42424/9