L'Oreal Professionnel Paris iNOA – 4.0 (Deep Natural Brown) Ammonia-Free Hair Color, 60g

What It Does

iNOA 4.0 by L’Oreal Professionnel Paris is an ammonia-free permanent crème hair colour that delivers a deep natural brown shade with radiant shine. Powered by Oil Delivery System (ODS2) technology, it offers smooth, even colour performance while supporting hair fibre integrity and providing full grey coverage.

Why You’ll Love It

Achieve a rich brown tone with a soft, professional finish. iNOA 4.0 enhances natural depth while maintaining hair comfort during colouring. The fade-resistant formula ensures long-lasting colour vibrancy and a smooth, nourished feel after processing. Ideal for those seeking classic brown results with a salon-quality appearance.

Volume / Quantity

Each tube contains 60g of crème colour—perfect for full-head applications or precise touch-ups. Professional consistency ensures uniform coverage and colour stability.

Hair Type / Concerns

Suitable for natural or pre-coloured brown to dark blonde hair (base 3–6). Designed for users seeking permanent colour with full grey blending, radiant shine, and a comfortable ammonia-free process.

Certification or Claims

iNOA is ammonia-free and formulated with ODS2 technology to support hair fibre smoothness and shine.
Clinically tested for full grey coverage, colour intensity, and conditioning support.
Always follow allergy testing guidelines before use.

Features and Benefits

• Deep Natural Brown Shade: Classic, rich and multidimensional finish

• Comfortable Experience: Odour-free, ammonia-free formula

• Full Grey Coverage: Even, professional-grade results

• Fade Resistance: Colour stays vibrant and glossy

• Fibre Support: Oil-powered technology helps maintain smoothness

Ingredients

Key actives include ODS2 technology within a creamy base for optimal developer mixing.
Full ingredient list provided by L’Oreal.

Ingredient Benefits

• Oil Delivery System: Enhances colour performance while supporting smoothness and shine

• Helps preserve hair’s healthy feel throughout the colouring process

These benefits are based on the product’s formulation design and intended use.

How to Use It

1. Mix: 1 part iNOA 4.0 (60g) + 1 part iNOA developer in non-metal bowl

2. Apply evenly to dry, unwashed hair

3. Leave on for 35 minutes

4. Rinse until water runs clear and apply post-colour care

Always perform a 48-hour patch test before each colour application.

Claimed Results

iNOA 4.0 provides a deep natural brown tone with smooth shine, long-lasting vibrancy and full grey blending, supporting a silky finish and refined colour clarity.