Olaplex Nº.5 Leave-In Conditioner 100 mL — Lightweight Repair & Heat Protection to 450°F

Olaplex Nº.5 Leave-In Conditioner is a lightweight gel-cream that instantly hydrates strands, seals split ends, and protects hair up to 450°F/232°C while reducing breakage.

This concentrated leave-in treatment from Olaplex is formulated to add moisture, smooth the cuticle, and continuously repair internal hair bonds from cortex to surface. Its velvet gel-creme texture detangles, tames frizz for up to 72 hours, and supports both styled and air-dried looks without weighing hair down. Use it on wet or damp hair to lock in hydration, prepare for heat styling, and help prevent further damage across coily, curly, straight, and wavy hair types.

How will Nº.5 improve dry or damaged hair immediately?

Nº.5 delivers instant slip and softness while addressing visible split ends and rough texture. The formula smooths the cuticle so hair feels softer and looks shinier right after application.

• Velvety gel-creme texture that absorbs quickly without heaviness
• Seals and softens split ends for smoother strand tips
• Easy detangling to reduce mechanical breakage when combing

What protection does it offer during styling and heat tools?

Olaplex Nº.5 provides thermal protection rated up to 450°F/232°C and helps reduce breakage caused by heat styling. It works as a barrier while you blow-dry, flat-iron, or use curling tools and improves manageability for cleaner styling results.

• Heat protection up to 450°F/232°C to shield strands during high-heat styling
• Clinically shown to reduce breakage during styling and brushing
• Supports smoother, longer-lasting blow-dries and defined air-dried looks

How does Nº.5 support long-term repair and frizz control?

Beyond immediate smoothing, the reparative ingredients in Nº.5 work from the hair cortex out to the cuticle to continuously mend and strengthen. The humidity-resistant formula helps control frizz for up to 72 hours, so styles stay more predictable between washes.

• Continuous bond support to help mend internal hair damage
• Clinically proven 72-hour frizz control and humidity resistance
• Improves strand resilience, reducing breakage and split-end progression

How do I use it for best results and how much will one bottle last?

Apply Nº.5 to clean, damp hair after shampooing and conditioning—focus from mid-lengths to ends. A little goes a long way: the 100 mL size is concentrated and yields many applications when used sparingly on wet hair.

• Apply to damp hair after washing; distribute evenly from mid-lengths to ends
• Use before heat styling or to enhance air-dried texture; style as usual
• 100 mL provides about 20–25 applications based on average 5 mL doses

Who is this for: Olaplex Nº.5 Leave-In Conditioner suits anyone with dry, damaged, or frizz-prone hair seeking hydration, protection during styling, and ongoing repair. It works across all textures — coily, curly, wavy, and straight — and is ideal for those who want smoother, stronger hair without heavy residues. Whether you heat-style regularly or simply need better moisture and split-end management between cuts, Nº.5 provides targeted support and measurable frizz and breakage improvements.

Ingredients

INGREDIENTS / INGRÉDIENTS: Water/Aqua/Eau, Cetearyl Alcohol, Astrocaryum Murumuru Seed Butter, Propanediol, Behentrimonium Chloride, Glycerin, Cetyl Alcohol, Isoamyl Laurate, Squalane, Bis-Aminopropyl Diglycol Dimaleate, Brassicyl Valinate Esylate, Cetyl Esters, Pentylene Glycol, Phenethyl Benzoate, Brassica Campestris/Aleurites Fordi Oil Copolymer, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Caprylic/Capric Triglyceride, Cetrimonium Chloride, Caesalpinia Spinosa Gum, Fructooligosaccharides, Beta Vulgaris (Beet) Root Extract, Sodium PCA, Hydroxypropyl Starch Phosphate, Guar Hydroxypropyltrimonium Chloride, Sodium Lactate, Hydrogenated Ethylhexyl Olivate, Calcium Gluconate, Argania Spinosa Kernel Oil, Caprylyl Glycol, Cocos Nucifera (Coconut) Oil, Panthenol, Arginine, Ethylhexylglycerin, Oryza Sativa (Rice) Bran Extract, Sodium Phytate, Aspartic Acid, Potassium Lactate, Ximenia Americana Seed Oil, PCA, Hydrogenated Olive Oil Unsaponifiables, Butylene Glycol, Lactic Acid, Raphanus Sativus (Radish) Seed Extract, Octyldodecyl Oleate, Octyldodecanol, Helianthus Annuus (Sunflower) Extract, Propylene Glycol, Glycine, Citric Acid, Alanine, Algin, Coco-Glucoside, Sorbitan Oleate, Serine, Tocopherol, Rosmarinus Officinalis (Rosemary) Leaf Extract, Valine, Carrageenan, Chitosan, Xanthan Gum, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Magnolia Officinalis Bark Extract, Betula Alba Bark Extract, Crambe Maritima Extract, Ulmus Fulva Bark Extract, Caesalpinia Spinosa Fruit Extract, Sodium Hyaluronate, Hydrolyzed Ceratonia Siliqua Seed Extract, Zea Mays (Corn) Starch, Helianthus Annuus (Sunflower) Sprout Extract, Polyquaternium-7, Sodium Hydroxide, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate, Fragrance (Parfum), Hexyl Cinnamal, Limonene, Citral, Linalool, Citronellol