Olaplex Nº.5 Bond Maintenance Conditioner 250 mL — Strengthens Hair, Reduces Breakage & Frizz

Built on Olaplex's patented bond-building chemistry, this color-safe conditioner works inside the hair fiber to restore strength and moisture. It’s formulated to be gentle on chemically treated hair yet effective for all textures—coily, curly, wavy, or straight—and is free from sulfates, parabens, and phthalates. A little goes a long way: the highly concentrated formula is designed for repeated use as part of a Bond Maintenance routine to improve detangling, reduce frizz, and defend against future damage.

How does Nº.5 strengthen hair without weighing it down?

Nº.5 combines bond-repairing Bis-Aminopropyl Diglycol Dimaleate with humectants like glycerin and panthenol to rebuild internal structure while attracting moisture. Lightweight emollients and silicones smooth the cuticle so hair feels silkier without becoming heavy or greasy.

• Active bond-builder penetrates the cortex to reinforce weakened links.
• Glycerin and panthenol draw and retain moisture for flexible strength.
• Silicone derivatives provide slip for detangling and shine without buildup.

Will this conditioner reduce breakage and frizz after one wash?

Clinical results show meaningful improvement in manageability and breakage resistance when used as part of the Olaplex system. Many users notice smoother, easier-to-comb hair after a single application; continued use supports longer-term damage prevention and reduced frizz.

• Formulated to reduce breakage and make detangling easier in one wash.
• Improves shine and smoothness to minimize friction-related damage.
• Best results when paired with Nº.4 or Nº.4FINE Bond Maintenance Shampoo.

How should I use Nº.5 for my hair type and length?

After shampooing, apply a small amount to mid-lengths and ends, leaving it on for 1–3 minutes before rinsing. Adjust the amount based on hair density and length—coarser or longer hair will need more product, while fine hair benefits from a lighter application or shorter leave-on time.

• Fine hair: use sparingly, focus on ends; rinse thoroughly to avoid weighing down.
• Thick or curly hair: increase amount and allow full 1–3 minute processing for deeper conditioning.
• Color-treated or chemically processed hair: safe and recommended for continued protection.

What key ingredients support the conditioner’s performance?

The formula blends Olaplex’s bond-repair ingredient with moisturizing oils, botanical extracts, and conditioning agents to hydrate and fortify hair without compromising color. Ingredients are chosen to balance repair, softness, and slip for easier styling and reduced friction.

• Bis-Aminopropyl Diglycol Dimaleate – Olaplex’s bond-building ingredient.
• Panthenol and glycerin – attract and lock in moisture for elasticity.
• Avocado, grape seed, and other botanical oils – nourish and add shine.

Who is this for: Olaplex Nº.5 is designed for anyone looking to repair everyday damage, protect chemically treated or heat-styled hair, and improve detangling and manageability. It suits all hair textures—from fine to coily—and is ideal for those who want clinically backed, salon-grade strengthening without sulfates, parabens, or phthalates. If you shampoo regularly and want a concentrated, long-lasting conditioner that supports hair resilience and shine, Nº.5 fits seamlessly into a maintenance routine.

Ingredients

Water, Cetearyl Alcohol, PPG-3 Benzyl Ether Myristate, Caprylic/Capric Triglyceride, Cetyl Alcohol,Octyldodecyl Ricinoleate, Quaternium-91, Cetrimonium Chloride, Divinyldimethicone/Dimethicone Copolymer, Behentrimonium Chloride, Glycerin, Cetyl Esters, Isododecane, Bis-Aminopropyl Diglycol Dimaleate, Fragrance, Panthenol, Phospholipids, Dimethicone PEG-7 Isostearate, Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate, Pseudozyma Epicola/Camellia Sinensis Seed Oil Ferment Extract Filtrate, Tocopheryl Linoleate/Oleate, Quaternium-95, Propanediol, Punica Granatum Extract, Morinda Citrifolia Fruit Extract, PEG-8, Euterpe Oleracea Fruit Extract, Camellia Sinensis Seed Oil, Crambe Abyssinica Seed Oil, Hydroxypropyl Cyclodextrin, Persea Gratissima (Avocado) Oil, Vitis Vinifera (Grape) Seed Oil, Disodium EDTA, Polysilicone-15, C11-15 Pareth-7, Hydroxypropyl Guar, Glycine Soja (Soybean) Oil, PEG-45M, PEG-7 Amodimethicone, Amodimethicone, C12-13 Pareth-23, C12-13 Pareth-3, Laureth-9, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, PEG-4, Phenoxyethanol, Hexyl Cinnamal.