Damaged Hair

Hair damage occurs when the hair's internal structure — specifically the disulfide bonds and protein chains that give hair its strength, elasticity, and shine — is compromised. The most common causes are chemical processing (bleaching, colouring, relaxing, perming), heat styling without protection, mechanical damage (aggressive brushing, tight styling), UV exposure, and environmental factors like hard water and pollution.

Damaged hair is characterised by dryness and lack of shine, roughness and tangles, increased breakage, loss of elasticity, split ends, and a dull, porous appearance. The right routine for damaged hair addresses both surface repair (cuticle smoothing) and internal bond repair.

Step 1 — Pre-Shampoo Treatment: Apply Olaplex No.3 or K18 Leave-In Molecular Repair Mask to dry hair before washing for intensive bond repair. Leave for minimum 10 minutes. This is the most important step for severely bleached or chemically damaged hair.

Step 2 — Repair Shampoo: Use a gentle, sulfate-free repair shampoo that cleanses without further stripping. Top picks: Olaplex No.4 Bond Maintenance Shampoo, Redken Acidic Bonding Concentrate Shampoo, Kérastase Resistance Bain Thérapiste, Milkshake Integrity Blend Shampoo, and Matrix Instacure Shampoo.

Step 3 — Repair Conditioner: A bond-building or protein-enriched conditioner applied after every wash. Top picks: Olaplex No.5 Bond Maintenance Conditioner, Redken Acidic Bonding Concentrate Conditioner, Kérastase Resistance Fondant, and Moroccanoil Moisture Repair Conditioner.

Step 4 — Weekly Repair Mask: Replace conditioner weekly with an intensive repair mask. Top picks: Kérastase Resistance Masque Thérapiste, Olaplex No.8 Bond Intense Moisture Mask, Redken Extreme Mega Mask, and Milkshake Integrity Intensive Treatment.

Step 5 — Leave-In Treatment: Applied to damp hair — provides ongoing bond repair, heat protection, and smoothness. Top picks: Olaplex No.6 Bond Smoother, Redken Acidic Bonding Concentrate Leave-In, and Kérastase Resistance Sérum Thérapiste.

Step 6 — Finishing Oil: Seals the cuticle and adds shine to damaged hair. Top picks: Olaplex No.7 Bonding Oil, Moroccanoil Treatment, and Redken All Soft Argan-6 Oil.

Bond-building treatments (Olaplex, K18, Redken Acidic Bonding Concentrate) work at the molecular level — reconnecting the broken disulfide bonds that give hair its structural strength. They address the root cause of chemical damage. Protein treatments (Kérastase Resistance, Milkshake Integrity, Matrix Instacure) fill gaps in the damaged cuticle and cortex with protein — delivering immediate improvements in strength and texture. Both are beneficial for damaged hair and work best used together.

What is the best product for bleached damaged hair? Olaplex No.3 used weekly as a pre-shampoo treatment, combined with Olaplex No.4 shampoo and No.5 conditioner daily, is the most consistently recommended system by professional colourists for bleached hair. For severely damaged blonde hair, add Kérastase Blond Absolu Cicaflash as your conditioner.

How long does it take for damaged hair to repair? Surface improvements (softness, shine, reduced frizz) are noticeable within 2-4 weeks of consistent use. Significant structural improvement takes 8-12 weeks. Complete recovery from severe damage requires time and consistent routine — damaged hair cannot be fully repaired overnight.

Should I cut damaged hair or treat it? Both — treatment repairs the internal structure and improves the appearance and manageability of existing hair. Trimming removes the most damaged ends and prevents split ends from travelling up the hair shaft. A professional trim every 6-8 weeks alongside a consistent repair routine is the most effective approach.

Partners Hair Design is an authorised stockist of every repair brand we carry. All products are 100% authentic. Free delivery on orders over R390 across South Africa. Orders placed before 1pm on weekdays are dispatched same day.