Schwarzkopf Color Ultime Permanent Hair Color 4.2 Mahogany Red — Diamond Brilliance, Fade-Resistant Coverage

Schwarzkopf Color Ultime 4.2 Mahogany Red is a permanent, high-shine hair color kit that delivers deep mahogany-red tones, long-lasting vibrancy and visible gloss thanks to its Diamond Brilliance Serum.

Designed for at-home use, this permanent cream color from Schwarzkopf promises intense red depth with multi-dimensional undertones while resisting fading for up to 10 weeks when used with proper care. The kit contains developer, color cream, gloves and a conditioning treatment so you can achieve an even, salon-inspired finish across a variety of hair textures, including relaxed and textured hair.

How vivid and long-lasting is the mahogany-red shade?

The 4.2 Mahogany Red produces a saturated red base with warm mahogany undertones for a rich, reflective result. It’s formulated to maintain depth and reduce dulling, so the tone stays noticeable through repeated washes.

• Up to 10 weeks of color retention with recommended aftercare
• UV filter technology helps slow color fading from sun exposure
• Diamond Brilliance Serum enhances light reflection for sustained shine

Will this dye cover gray hair and work on all textures?

Color Ultime is made to provide uniform coverage, including on gray strands, producing an even result from root to tip. The creamy formula spreads smoothly for consistent saturation and is suitable for fine, straight, wavy, curly or coily hair types.

• Designed to cover grays effectively for a seamless finish
• Cream texture ensures easy application on relaxed, natural, or textured hair
• For long or very thick hair, consider using two boxes to ensure full coverage

How does the formula protect shine and prevent dullness?

Infused with a Diamond Brilliance Serum, the formula boosts surface reflectivity to give a glossy, polished look immediately after processing. Complementary ingredients and a color-protecting UV filter work together to keep tones luminous and reduce the speed of color washout.

• Diamond Brilliance Serum produces multi-faceted sheen
• Conditioning finish helps hair feel softer and more manageable post-color
• UV protection helps maintain vibrancy against sun-related fading

Is it easy to use at home if I’m new to coloring my hair?

The kit includes step-by-step instructions, gloves, a developer bottle and a conditioning aftercare product to guide beginners through the process. The creamy consistency simplifies even application and helps minimize patchy results when directions are followed.

• Complete kit with clear instructions for first-time users
• Cream formula spreads evenly to reduce streaking and missed spots
• Post-color conditioner in the box helps seal the cuticle and finish the service

Who is this for: Schwarzkopf Color Ultime 4.2 Mahogany Red is suited for anyone seeking a bold, glossy mahogany-red tone with long-lasting color performance. It’s ideal for people with visible grays who want full coverage, for those with any hair texture who need an even application, and for at-home stylists wanting a salon-inspired depth and shine without complicated steps. If you prioritize luminous, multi-dimensional red and prefer a ready-to-use kit that includes developer and conditioner, this shade delivers a dramatic, resilient result.

Ingredients

Color Cream: Aqua (Water, Eau), Cetearyl Alcohol, Ammonium Hydroxide, Glyceryl Stearate SE, Ceteareth-20, 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate, Octyldodecanol, Sodium Laureth Sulfate, 4-Amino-2-Hydroxytoluene, Sodium Cetearyl Sulfate, Serine, Sodium Sulfite, Toluene-2, 5-Diamine Sulfate, Parfum (Fragrance), Oleic Acid, M-Aminophenol, Glycerin, Ethanolamine, Tetrasodium EDTA, Carbomer, Potassium Hydroxide, Ascorbic Acid, Sodium Sulfate. Developer: Aqua (Water, Eau), Hydrogen Peroxide, Cetearyl Alcohol, PEG-40 Castor Oil, Disodium Pyrophosphate, Sodium Cetearyl Sulfate, Disodium EDTA, Sodium Benzoate, Phosphoric Acid. Conditioning Treatment: Aqua (Water, Eau), Cetearyl Alcohol, Quaternium-87, Stearamidopropyl Dimethylamine, Dimethicone, Citric Acid, Distearoylethyl Hydroxyethylmonium Methosulfate, Isopropyl Myristate, Glycerin, Propylene Glycol, Phenoxyethanol, Parfum (Fragrance), Sodium Methylparaben, Prunus Armeniaca (Apricot) Kernel Oil, Dimethiconol, Panthenol, Benzophenone-4, Polyquaternium-10, Cocodimonium Hydroxypropyl Hydrolyzed Keratin, Maris Sal (Sea Salt), Hydrolyzed Pearl, Hydrolyzed Keratin.