A biotin conditioner that helps long hair grow without snapping
Redken Extreme Length Conditioner with Biotin is a fortifying conditioner for long hair, or hair you are growing out, that tends to break before it reaches the length you want. Its formula pairs biotin with castor seed oil to strengthen the hair and help reduce breakage, and conditioning agents detangle and smooth the lengths. Used with the matching shampoo, it leaves hair softer, easier to comb and less prone to split ends, so it can keep growing longer and stronger.
The texture
A creamy, medium-weight conditioner that spreads easily from mid-lengths to ends. It detangles quickly and rinses out cleanly, leaving hair smooth without weighing fine hair down. It has Redken's fresh salon scent.
Who it suits
- Long hair, or hair you are growing out
- Hair that snaps or splits at the ends
- Dry, tangly lengths that need detangling
- All hair types, including color-treated hair
Worth knowing before you buy: it contains fragrance and mineral oil. It strengthens the hair fiber and reduces breakage, but it does not make hair grow faster from the root.
How long one bottle lasts
Used three times a week on shoulder-length hair or longer, the 300ml bottle lasts about two months.
Complete the routine

Extreme Length Shampoo
The matching biotin shampoo for long hair.
Shop →
Phytophanère Length Serum
A leave-on serum for longer-looking hair.
Shop →Characteristics
- Texture: cream conditioner
- Hair type: long hair, all hair types
- Concerns: breakage, split ends, tangles
- When to apply: after every shampoo
- Main benefits: strengthens, reduces breakage, detangles, softens
How to use
After shampooing, apply to wet hair from mid-lengths to ends. Leave on for one to two minutes, then rinse thoroughly. Use with the Extreme Length shampoo for best results.
Active ingredients
- Biotin: helps strengthen the hair and reduce breakage
- Castor seed oil: nourishes and smooths the lengths
- Behentrimonium methosulfate and cetrimonium chloride: detangle and condition
- Glycerin: helps keep hair hydrated
Ingredients
AQUA / WATER / EAU · CETEARYL ALCOHOL · PROPYLENE GLYCOL · MALEIC ACID · ETHANOLAMINE · BEHENTRIMONIUM METHOSULFATE · PARFUM / FRAGRANCE · STEARAMIDOPROPYL DIMETHYLAMINE · GLYCERIN · PHENOXYETHANOL · HYDROXYETHYLCELLULOSE · RICINUS COMMUNIS SEED OIL / CASTOR SEED OIL · QUATERNIUM-91 · POLYQUATERNIUM-37 · BENZOIC ACID · PARAFFINUM LIQUIDUM / MINERAL OIL / HUILE MINERALE · CETRIMONIUM CHLORIDE · CETRIMONIUM METHOSULFATE · PPG-1 TRIDECETH-6 · BENZYL BENZOATE · BIOTIN · LIMONENE · BENZYL ALCOHOL · ACRYLATES COPOLYMER · LINALOOL · 2-OLEAMIDO-1,3-OCTADECANEDIOL · SORBITAN OLEATE
Formulations are updated by the manufacturer from time to time. Always check the packaging you receive.
Manufacturer information
Brand: Redken
Address: 277 rue Saint-Honoré, 75008 Paris, France
EAN: 3474636920280
