Garnier Olia No Ammonia 4.0 Chestnut Hair Dye For Rich Color

Achieve salon-quality permanent color at home with Garnier Olia No Ammonia 4.0 Chestnut. This ammonia-free formula respects hair integrity while delivering a warm, natural chestnut brown from the very first application. Designed for unisex use and packaged as a single-application unit, it provides a convenient, all-in-one color solution that covers evenly and leaves hair with a vibrant, healthy shine.

What sets Garnier Olia apart

Olia stands out from traditional dye options with its ammonia-free gel formula. The blend includes key ingredients such as potassium hydroxide and sodium cetearyl sulfate, which help open the cuticle for better color penetration while preserving hair softness. Nourishing components like camellia oleifera seed oil and sunflower seed oil work to support gloss and manageability as the color develops. This thoughtful combination delivers a natural-looking result without the harshness associated with ammonia-based dyes.

Shade, coverage, and finish

Shade 4.0 Chestnut offers a warm, medium brown base with rich chestnut undertones. The formula is designed for effective coverage from the first use and creates a uniform, shiny finish that looks professional and lasts. The gel texture ensures easy, precise application for an even result across roots and lengths.

What you get

• One-use dye kit with permanent color in 4.0 Chestnut
• Ammonia-free formula designed to minimize scalp irritation while delivering full coverage
• Nourishing oils and conditioning ingredients to support hair softness during and after coloring
• Cruelty-free formulation (not tested on animals) and markets developed with hair respect in mind

Who is this for

Ideal for anyone seeking a long-lasting, natural-looking chestnut shade without ammonia. Suitable for all hair types and for those who prefer a gentler coloring experience that still delivers vibrant, salon-like results. Perfect for first-time at-home colorers or anyone refreshing their look with reliable, consistent outcomes.

Practical insights and tips

The product is crafted for markets prioritizing quality and hair care, including Spain and France, ensuring the formula balances color intensity with hair respect. The oil-rich components support moisture and shine, helping to maintain a healthy feel even after color treatment. For best results, apply evenly to dry hair, ensure full saturation at roots and mids/ends, and follow through with color-safe care to extend vibrancy.

Ethics and safety

Garnier Olia is not tested on animals, reflecting the brand’s commitment to ethical beauty. The product is presented as a reliable, responsible choice for color-conscious consumers who want lasting results without compromising hair health or ethics.