Garnier Olia Permanent Hair Color — Dark Brown 4.0, Ammonia-Free Oil-Powered Formula, 2-Count (100% Gray Coverage, 3x Shinier)

Garnier Olia 4.0 Dark Brown is an ammonia-free, oil-powered permanent hair color that delivers rich, long-lasting dark brown shades with 100% gray coverage and up to 3x shinier-looking hair.

If you want salon-quality permanent color without ammonia’s strong odor, Garnier Olia uses a 60% oil blend of sunflower and camellia seed oils plus ODS™ technology to help colors penetrate deeply while leaving hair feeling hydrated and glossy. This two-count pack contains two complete kits—developer applicator bottle, colorant tube, after-color conditioner, gloves, and instructions—so you can color twice or treat longer hair with confidence. The formula is vegan and Leaping Bunny certified, made without silicones, parabens, or phthalates.

How does Olia’s oil-powered formula protect hair compared with traditional ammonia dyes?

Instead of relying on ammonia, Olia harnesses natural flower oils to carry color molecules into the hair shaft. The oil-first approach reduces harsh odor and helps maintain moisture, producing a smoother, shinier finish that feels less drying than many conventional permanent colors.

• 60% oil blend (sunflower and camellia seed oils) to hydrate during coloring
• ODS™ technology helps colorants reach the hair fiber for even deposit
• No silicones, parabens, phthalates or ammonia—gentler sensory experience
• Non-drip cream texture for controlled application and less mess

Will Garnier Olia cover gray hair completely and keep color vibrant?

Yes — Olia is formulated for full gray coverage and long-lasting results. When used as directed, it gives consistent, natural-looking coverage while locking in depth and shine for weeks.

• Engineered for 100% gray coverage on most hair types
• Color stability designed to stay vibrant for multiple washes
• After-color conditioner included to seal and enhance shine
• Use recommended follow-up care (color-safe shampoo & conditioner) to extend radiance

How do I apply Garnier Olia at home safely and effectively?

Preparation and timing are key: apply to dry, unwashed hair and follow the included step-by-step instructions. Mix the colorant into the developer bottle, shake to emulsify, apply evenly, process for the specified time, then rinse and condition.

• Apply to dry, unwashed hair for optimal coverage and root adhesion
• Process time typically 30 minutes—refer to included leaflet for exact timing
• Rinse until water runs clear, then apply included after-color conditioner
• One box treats short–medium hair; two boxes often needed for long hair

Is Olia suitable for people who prefer cruelty-free and vegan hair care?

Garnier Olia is Leaping Bunny certified and formulated without animal-derived ingredients, making it a good option for shoppers seeking vegan and cruelty-free permanent hair dye solutions.

• Leaping Bunny cruelty-free certification
• Formulated vegan—no animal-derived ingredients
• Free from ammonia, silicones, parabens, and phthalates
• Broad shade range from blacks and browns to reds and blondes

Who is this for: Garnier Olia 4.0 Dark Brown is ideal for anyone wanting a convenient at-home permanent dye that prioritizes a gentler feel and glossy results—people with natural or graying hair seeking full coverage, those who dislike strong ammonia odors, and shoppers who prefer vegan, cruelty-free formulas. It’s also a practical choice if you need two applications or have long hair and want to stock a two-count pack for repeat use.

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, SODIUM STANNATE, TETRASODIUM PYROPHOSPHATE, PHOSPHORIC ACID. F.I.L.# D42424/9 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: 1177016 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, M-AMINOPHENOL, ASCORBIC ACID, 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.# D180157/1 US PATENTS: 7,060,107; 7,988,737; 7,988,738; 8,066,781; 8,114,170; 7,494,513 US PAT PENDING