L'Oreal Paris Feria Permanent Hair Color — 521 Cool Amethyst, Multi-Faceted Shimmer & 3x Highlights

L'Oreal Paris Feria 521 Cool Amethyst is a permanent, multi-faceted shimmering hair color that layers prismatic depth and 3x highlights for a bold, amethyst-toned finish.

Designed for fashion-forward color that catches the light, this Feria kit blends cool violet tones with reflective shimmer to create a dimensional purple shade. The formulation pairs intense color pigments with a conditioning treatment to help smooth the cuticle and maintain vibrancy. Kit contents and packaging may vary by edition, but the goal remains the same: a salon-inspired colorful result you can achieve at home.

How does Feria create that shimmering, multi-tonal amethyst effect?

The Feria system uses a prismatic color approach with layered pigments and three distinct highlight intensifiers to produce depth and luminous movement. Instead of a flat, single-tone dye, the pigments are calibrated to reflect light differently across strands so the purple reads as varied and metallic depending on angle and light.

• Prismatic pigment blend engineered by L'Oreal colorists
• 3x highlight effect for visible dimension
• Cool amethyst shade built from violet and blue undertones
• Permanent formulation for long-lasting color payoff

Will this kit condition and protect my hair while coloring?

Yes — the kit includes a Power Shimmer Conditioner and a Bonding Care Complex designed to smooth and help strengthen hair after coloring. These treatments reduce friction and help seal the cuticle so color looks glossy and feels more manageable.

• Power Shimmer Conditioner seals and adds shine
• Bonding Care Complex supports strand integrity during color
• Promotes smoother texture and easier post-color styling
• Helps maintain color brilliance between washes

How long does the Cool Amethyst shade last and will it cover gray?

As a permanent hair color, Feria deposits long-lasting pigments designed to resist fading for many weeks, though maintenance frequency depends on hair porosity and washing habits. Permanent formulas like this can provide good gray coverage, but results vary with the amount of gray and starting hair color.

• Permanence offers extended wear compared with temporary dyes
• Gray coverage capability depends on base color and gray percentage
• Use sulfate-free shampoos and conditioners to prolong tone
• Touch-ups recommended as roots grow out

What should I expect during an at-home application?

Application follows a standard permanent-color routine: mix, apply evenly, develop for the recommended time, then rinse and condition. For best, even results, start with clean, dry hair and follow the included instructions and timing closely, especially if lifting or toning is needed beforehand.

• Mix developer and colorant according to kit directions
• Apply from roots to ends for full coverage or concentrate on mid-lengths for dimension
• Observe recommended development time to avoid over-processing
• Finish with the included conditioner to lock in sheen

Who is this for? Feria 521 Cool Amethyst is suited for adventurous color users who want a salon-style, multidimensional purple without an appointment. It’s ideal for those with light to medium base shades seeking a cool-toned amethyst, and for darker bases who are open to pre-lightening for optimal vibrancy. If you value bold, reflective color with built-in conditioning and enjoy experimenting with fashion-forward hues, this kit gives a ready-made option. Always perform a strand and patch test before full application and follow safety instructions included in the box.

Ingredients

Formula 1242106 Feria Medium Cool Iridescent Brown Lilac Quartz 5.21 INGREDIENTS AQUA / WATER / EAU ALCOHOL DENAT. PEG-4 RAPESEEDAMIDE GLYCERYL LAURYL ETHER DECETH-3 PROPYLENE GLYCOL LAURETH-5 CARBOXYLIC ACID ETHANOLAMINE DIPROPYLENE GLYCOL HEXYLENE GLYCOL AMMONIUM HYDROXIDE POLOXAMER 338 POLYQUATERNIUM-6 OLEYL ALCOHOL PARFUM / FRAGRANCE 5-AMINO-6-CHLORO-o-CRESOL AMMONIUM THIOLACTATE TOLUENE-2,5-DIAMINE EDTA ERYTHORBIC ACID 2-METHYL-5-HYDROXYETHYLAMINOPHENOL THIOGLYCERIN BHT FIL CODE D238957/1 Formula 1190015 Oxydant Inter 25vol INGREDIENTS AQUA / WATER / EAU HYDROGEN PEROXIDE CETEARYL ALCOHOL TRIDECETH-2 CARBOXAMIDE MEA CETEARETH-25 GLYCERIN PHOSPHORIC ACID TETRASODIUM ETIDRONATE TETRASODIUM PYROPHOSPHATE SODIUM SALICYLATE FIL CODE D209747/8 Formula 1025948 E SOIN TERMINAL INGREDIENTS AQUA / WATER / EAU CETEARYL ALCOHOL GLYCERIN BEHENTRIMONIUM CHLORIDE AMODIMETHICONE CETYL ESTERS ISOPROPYL ALCOHOL CI 77891 / TITANIUM DIOXIDE MICA SODIUM PCA PHENOXYETHANOL THEOBROMA CACAO SEED BUTTER / COCOA SEED BUTTER ACETIC ACID TRIDECETH-5 TRIDECETH-10 CHLORHEXIDINE DIHYDROCHLORIDE PARFUM / FRAGRANCE METHYLPARABEN FIL CODE D54221/8 Formula 1183532 Feria Ampoule INGREDIENTS HELIANTHUS ANNUUS SEED OIL / SUNFLOWER SEED OIL PARFUM / FRAGRANCE COCOS NUCIFERA OIL / COCONUT OIL POLY(LINSEED OIL) FIL CODE D177462/1