L'Oreal Paris Superior Preference Permanent Hair Color Dark Soft Mahogany Brown 4SM — Fade‑Defying, Shine Protect

L'Oreal Paris Superior Preference 4SM Dark Soft Mahogany Brown is a permanent at‑home hair dye that delivers luminous, fade‑defying color with conditioning for up to nine weeks.

Designed as L'Oreal Paris's signature permanent color system, Superior Preference combines a translucent gel color with a conditioning Care Supreme formula to provide rich, multidimensional tone and enhanced shine. The kit covers gray, adheres evenly thanks to its no‑drip gel texture, and includes a vitamin E and UV filter–infused conditioner to help lock in first‑day vibrancy while leaving hair soft and manageable.

How does this shade look on dark hair?

Dark Soft Mahogany Brown (4SM) offers a deep brown base warmed by subtle mahogany highlights, creating a natural, multi‑tonal finish. On darker natural hair, the result is a rich brown with warm auburn reflections; on previously lightened hair, the mahogany warmth will be more pronounced.

• Deep brown base with gentle mahogany shimmer
• Creates depth and subtle dimension on dark tones
• Warm reflec tions appear stronger on lighter bases

What comes in the box and how easy is the application?

The kit includes color gel, developer crème, a Care Supreme Shine Protect Conditioner, a pair of gloves and an instruction leaflet. The no‑drip gel texture makes application neater, helps the color cling to strands, and supports a more controlled, even coverage for at‑home use.

• Color gel and developer crème for permanent dyeing
• Shine Protect Conditioner with vitamin E and UV filter
• Gloves and step‑by‑step instructions for at‑home application

How long will the color last and how does it protect shine?

Formulated to resist visible fading, Superior Preference can maintain color radiance for up to nine weeks when used as directed. The Care Supreme conditioner helps seal the color and adds surface shine, while the gel formula offers improved color coating of the hair fiber for prolonged vibrancy.

• Fade‑defying system engineered for up to nine weeks of radiance
• Conditioner with UV filter and vitamin E to protect vibrancy
• Gel texture improves dye adherence and hair fiber coating

Is this suitable for my hair type and gray coverage needs?

Superior Preference is suitable for a wide range of hair types and provides effective gray coverage. Because it is a permanent dye, it deposits long‑lasting pigment; perform a strand test if your hair has been heavily lightened or chemically treated to anticipate the final tone.

• Works on fine to coarse hair — follow timing instructions for best results
• Designed to cover gray hair with even pigment distribution
• Recommended strand test for previously lightened or damaged hair

Who is this for: L'Oreal Paris Superior Preference 4SM is for anyone seeking a rich, warm brown with mahogany nuance delivered by a permanent, at‑home system. It suits users who want long‑lasting shine and conditioned feel after coloring, prefer a no‑drip application, and value a kit that includes a protective conditioner to help maintain first‑day vibrancy.

Ingredients

Our formulas are modified from time to time, so this ingredient listing may not exactly reflect the ingredients in the product you purchase and use. Always read the ingredient list on the product label before use. Formula 1055760 L'OREAL PARIS Preference #4,15 US INGREDIENTS AQUA / WATER / EAU TRIDECETH-2 CARBOXAMIDE MEA PROPYLENE GLYCOL HEXYLENE GLYCOL PEG-2 OLEAMINE POLYGLYCERYL-4 OLEYL ETHER OLEYL ALCOHOL ALCOHOL DENAT. AMMONIUM HYDROXIDE POLYGLYCERYL-2 OLEYL ETHER OLEIC ACID SODIUM DIETHYLAMINOPROPYL COCOASPARTAMIDE PENTASODIUM PENTETATE p-PHENYLENEDIAMINE AMMONIUM ACETATE PARFUM / FRAGRANCE SODIUM METABISULFITE RESORCINOL m-AMINOPHENOL p-AMINOPHENOL ERYTHORBIC ACID 4-AMINO-2-HYDROXYTOLUENE 6-HYDROXYINDOLE ALPHA-ISOMETHYL IONONE 2,4-DIAMINOPHENOXYETHANOL HCl EUGENOL LINALOOL CITRONELLOL FIL CODE D32586/2 Formula 178914 U HEALTHY LOOK CREME GLOSS COLOR DEVELOPER - 20 VOLUME , REVELATEUR 20 VOLUMES INGREDIENTS AQUA / WATER / EAU HYDROGEN PEROXIDE CETEARYL ALCOHOL TRIDECETH-2 CARBOXAMIDE MEA CETEARETH-25 GLYCERIN PENTASODIUM PENTETATE SODIUM STANNATE TETRASODIUM PYROPHOSPHATE PHOSPHORIC ACID FIL CODE D12836/18 Formula 1087166 K After Color Conditioner Préférence INGREDIENTS AQUA / WATER / EAU CETEARYL ALCOHOL GLYCERIN BEHENTRIMONIUM CHLORIDE CANDELILLA CERA / CANDELILLA WAX / CIRE DE CANDELILLA AMODIMETHICONE CETYL ESTERS ISOPROPYL ALCOHOL PARFUM / FRAGRANCE SODIUM PCA TRIDECETH-6 LINALOOL HEXYL CINNAMAL BENZYL ALCOHOL CHLORHEXIDINE DIHYDROCHLORIDE CETRIMONIUM CHLORIDE BUTYLPHENYL METHYLPROPIONAL LIMONENE ALCOHOL DENAT. GERANIOL AMYL CINNAMAL PPG-5-CETETH-20 BENZYL BENZOATE CAMELINA SATIVA SEED OIL OLETH-10 CITRONELLOL DISODIUM COCOAMPHODIPROPIONATE LECITHIN PHOSPHORIC ACID TOCOPHEROL ETHYLHEXYL SALICYLATE FIL CODE D192716/1