John Frieda Precision Foam Colour Dark Natural Brown 4N — 2-Application Kit, Thick Non-Drip Foam & 100% Grey Coverage

John Frieda Precision Foam Colour 4N is a thick, non-drip foam hair dye that delivers neutral dark brown color with 100% grey coverage in a two-pack kit.

This at-home hair color kit uses a dense foam formula designed to spread evenly, reduce mess, and reach roots and hard-to-reach areas for consistent, salon-style results. The 4N shade is a neutral dark brown that builds on your existing undertones for rich saturation; it works best on light brown through black hair and will render slightly lighter results on predominantly grey hair. The kit contains two complete applications so you have what you need for touch-ups or longer hair, and it includes an after-color conditioner to help lock in tone and maintain softness.

How does the foam application reduce mess and improve coverage?

The dense foam is engineered to stay put where you apply it, minimizing drips and runs that lead to uneven patches. Foam spreads smoothly into roots, along part lines, and around the hairline so coverage is more uniform than some liquid dyes.

• Thick, non-drip foam for cleaner application
• White foam appearance shows where product is applied
• Foamer head distributes color into roots and thin areas
• Gloves and clear instructions included for tidy use

What color results should I expect from 4N Dark Natural Brown?

4N is a neutral dark brown that enhances natural undertones without strong red or golden shifts. On darker bases you’ll see deep, saturated brown; on lighter brown hair the tone will appear rich and full, while very grey hair may take a slightly lighter shade.

• Neutral dark brown with balanced undertones
• Saturated, salon-style finish on light brown to black hair
• Mostly grey hair may yield a lighter outcome than swatch
• Red hair can shift toward a dark reddish-brown result

Will this product cover grey hair and last over time?

The formula is made to provide full grey coverage and resist premature fading when used as directed. For best longevity, follow the included after-color conditioning step to help seal color and maintain vibrancy between applications.

• Designed for 100% grey coverage when applied correctly
• Colorant plus developer combine for lasting deposit
• After-color conditioner helps seal and nourish strands
• Two complete kits enable follow-up or repeat coverage

What’s included and how do I get the best result at home?

Each kit supplies the components needed to complete an at-home color service: colorant, developer, foamer applicator, gloves, after-color conditioner, and instructions. To optimize results, start with dry, unwashed hair, follow timing guidance closely, and use the included conditioner after rinsing to lock in tone.

• Two full sets: colorant, developer, conditioner, foamer, gloves
• Apply to unwashed hair for better adherence
• Use the foamer for even root and length distribution
• Finish with the after-color conditioner to preserve color

Who is this for? John Frieda Precision Foam Colour 4N is ideal for people who want a clean, controlled at-home coloring experience with a neutral dark brown shade. It suits those with light brown to black natural color looking for depth and even grey coverage, users who dislike messy liquid dyes, and anyone who prefers foam application for easier precision at roots and hairline. If you have predominantly grey or vibrant red hair, expect some variation in shade and consult the directions before coloring.

Ingredients

See packaging for ingredient details