Strengthening & Fortifying Hair Products
393 productsRebuild Broken Bonds — Stronger Hair from the Inside Out
Strengthening and fortifying products work in two distinct ways. Protein treatments (like keratin, hydrolyzed wheat protein, and rice protein) coat or penetrate the hair shaft to temporarily fill gaps in the cuticle, adding structure and reducing breakage. Bond-repair technology — pioneered by Olaplex's bis-aminopropyl diglycol dimaleate and now advanced by K18's biomimetic peptide — actually reconnects broken disulfide and polypeptide chains within the cortex, restoring the hair's original strength from within rather than just masking damage.
ProHair.ca carries the most complete selection of strengthening hair care, including Olaplex, K18, Joico K-PAK, Redken Extreme, Schwarzkopf Bonacure Fibre Force, and more. Whether your hair needs emergency bond repair or steady daily fortification, we have the right system — in salon sizes and retail — sourced from authorized distributors.
Shop Hair Routines
Curated step-by-step routines — save up to 4% on every bundle
Best Routine for Damage
Formulated to address damage. This 3-step routine gives you a complete, professional-grade regimen in one bundle. Expect stronger strands, reduced breakage, and visibly healthier hair. Use together for best results and enjoy 4% savings on the full set.
Bonacure Repair Rescue Routine
Formulated to address breakage, damage and dryness. Powered by Schwarzkopf BC's micro-sealing technology. This 4-step routine gives you a complete, professional-grade regimen in one bundle. Expect reinforced bonds, less breakage, and noticeably stronger hair. Use together for best results and enjoy 5% savings on the full set.
Joico Defy Damage Protective Routine
Formulated to address breakage, damage and frizz. Powered by Joico's Quadramine Complex. This 4-step routine gives you a complete, professional-grade regimen in one bundle. Expect reinforced bonds, less breakage, and noticeably stronger hair. Use together for best results and enjoy 5% savings on the full set.
Goldwell Color Brilliance Routine
Formulated to address dryness, damage and dullness. Powered by Goldwell's Dualsenses instant-care technology. This 4-step routine gives you a complete, professional-grade regimen in one bundle. Expect intense hydration, softer texture, and restored shine. Use together for best results and enjoy 5% savings on the full set.
Maria Nila Structure Repair Routine
Formulated to address damage and breakage. Powered by Maria Nila's 100% vegan Colour Guard complex. This 4-step routine gives you a complete, professional-grade regimen in one bundle. Expect stronger strands, reduced breakage, and visibly healthier hair. Use together for best results and enjoy 5% savings on the full set.
Medavita Oil D’étoile Routine
Formulated to address dryness, volume and damage. Powered by Medavita's Italian trichology heritage. This 4-step routine gives you a complete, professional-grade regimen in one bundle. Expect intense hydration, softer texture, and restored shine. Use together for best results and enjoy 5% savings on the full set.
Professional By Fama Wondher Detox Routine
Formulated to address color fade and damage. Powered by Professional by Fama's colour-enhancing technology. This 4-step routine gives you a complete, professional-grade regimen in one bundle. Expect vibrant colour, extended longevity, and brilliant shine. Use together for best results and enjoy 5% savings on the full set.
KMS Color Vitality Blonde Routine
Formulated to address brassiness and damage. Powered by KMS's Start.Style.Finish system. This 3-step routine gives you a complete, professional-grade regimen in one bundle. Expect neutralised tones, cooler colour, and brighter highlights. Use together for best results and enjoy 4% savings on the full set.
Matrix Instacure Anti Breakage Routine
Formulated to address breakage, frizz and damage. Powered by Matrix's professional salon science. This 3-step routine gives you a complete, professional-grade regimen in one bundle. Expect reinforced bonds, less breakage, and noticeably stronger hair. Use together for best results and enjoy 4% savings on the full set.
Bonacure Color Freeze Routine
Formulated to address dryness, color fade and damage. Powered by Schwarzkopf BC's micro-sealing technology. This 3-step routine gives you a complete, professional-grade regimen in one bundle. Expect intense hydration, softer texture, and restored shine. Use together for best results and enjoy 4% savings on the full set.
Shop Strengthening & Fortifying Hair Products by Range
Olaplex
The original bond-repair technology. No. 3 Hair Perfector is an at-home maintenance treatment; No. 4 & 5 are the daily shampoo and conditioner that continue bond repair every wash.
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K18 Biomimetic Hairscience
K18Peptide™ is the first ingredient proven to reconnect polypeptide chains — the deepest level of hair damage. The Leave-In Molecular Repair Mask works in 4 minutes and doesn't wash out.
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Joico K-PAK
A complete reconstruction system built on hydrolyzed keratin and silk. Penetrates the cortex to rebuild from within. Ideal for hair that has lost elasticity and snaps on stretching.
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Redken Extreme
RCT Protein Complex® reinforces the Root, Cortex, and Tip of each strand for whole-strand strength. The Extreme range includes shampoo, conditioner, mask, and a legendary leave-in treatment.
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Schwarzkopf BC Bonacure Fibre Force
Amino Cell Rebuild Technology™ uses targeted amino acids to reconstruct the hair's internal structure. Particularly effective for chemically bleached or highlighted hair.
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Wella Invigo Nutri-Enrich
Goji berry and omega fatty acids (3, 6 & 9) fortify and nourish dry, weakened hair. A gentler strengthening option for hair that isn't severely damaged but needs daily care.
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Kenra Platinum Silkening
Ceramides and silk proteins smooth the cuticle and rebuild the hair's moisture-protein balance, reducing brittleness and improving elasticity over consistent use.
Shop NowWhich Strengthening & Fortifying Hair Products Products Are Right for You?
Bond Repair Treatments
Scientifically advanced formulas (Olaplex, K18) that reconnect broken disulfide and polypeptide bonds deep inside the cortex. The most powerful repair available without a salon visit.
Protein Treatments
Hydrolyzed keratin, silk, and wheat protein formulas that fill cuticle gaps and add temporary structural support. Best for hair that is limp, overly elastic, or prone to breakage.
Strengthening Shampoos
Daily-use cleansers that build fortification into every wash. Won't replace a treatment, but maintain and extend the results of your protein or bond-repair routine.
Fortifying Conditioners
Rinse-out conditioners with structural proteins and ceramides that add slip and strength simultaneously — reducing breakage during detangling and brushing.
Leave-In Strengtheners
Heat-activated or ambient-working leave-in treatments (like K18) that continue to repair bonds after application, every time you style or wash.
Deep Repair Masks
Intensive weekly treatments with concentrated protein and bond-building actives. Used 1–2 times per week on damaged or chemically processed hair.
Medavita Luxviva Color Care Anti Yellow Blonde Enhancer Shampoo 1 – Tone Care for Blonde Hair 1250ml
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- $79.99
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$99.50 - Sale price
- $79.99
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Medavita Luxviva Color Care Post Color Shampoo – Colour Protection and Shine 250ml
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- $27.99
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$31.50 - Sale price
- $27.99
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Medavita Luxviva Color Care Color Fixative Sealing Spray – Colour Protection and Shine 150ml
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- $31.99
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$36.50 - Sale price
- $31.99
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Medavita Lotion Concentrée Homme Men's Densifying Shampoo – Densifying Care for Thinning Hair 55ml
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- $32.99
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$42.99 - Sale price
- $32.99
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Medavita Lotion Concentrée Homme Male Anti Hair Loss Treating Shampoo – Densifying Care for Thinning Hair 250ml
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- $27.99
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$31.50 - Sale price
- $27.99
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Medavita Lotion Concentrée Densifying Shampoo – Densifying Care for Thinning Hair 55ml
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- $32.99
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$42.99 - Sale price
- $32.99
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Loma - Fortifying Repairative Tonic
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- $131.99
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$174.99 - Sale price
- $131.99
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Loma - Deep Conditioner
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- $32.99
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$42.99 - Sale price
- $32.99
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Medavita Lissublime Smoothing Shampoo – Smoothing Anti-Frizz Care
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- $10.99
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$13.25 - Sale price
- $10.99
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L'Oréal Professionnel Inforcer Shampoo – Anti-Breakage Strengthening Cleanser
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- $24.00
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- $24.00
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KMS ThermaShape Quick Blow Dry – 200ml
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- $21.99
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- $21.99
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KMS Moist Repair Style Primer – 150ml
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- $23.99
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$26.99 - Sale price
- $23.99
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KMS Moist Repair Leave-In Conditioner – 200ml
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- $24.17
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- $24.17
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KMS Moist Repair Cleansing Conditioner – 250ml
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- $20.99
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$22.99 - Sale price
- $20.99
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KMS Color Vitality Shampoo – 750ml
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- $25.99
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- $25.99
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KMS Color Vitality Conditioner – 750ml
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- $27.99
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- $27.99
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KMS Color Vitality Blonde Shampoo – 300ml
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- $19.99
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$21.99 - Sale price
- $19.99
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KMS Color Vitality Blonde Conditioner – 75ml
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- $8.99
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$11.99 - Sale price
- $8.99
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KMS Add Volume Shampoo – 300ml
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- $19.99
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- $19.99
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KMS Add Power Strengthening Fluid – 100ml
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- $16.99
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- $16.99
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Joico K-PAK Shampoo & Conditioner Duo – Reconstructing Repair Set for Damaged Hair
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- $39.99
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$42.99 - Sale price
- $39.99
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Joico K-PAK Cuticle Sealer – pH-Balancing Conditioner to Smooth, Seal & Strengthen Damaged Hair 1 L
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- $43.99
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$54.00 - Sale price
- $43.99
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Joico Defy Damage KBOND20 Power Masque – Intensive Bond-Strengthening Treatment
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- $36.99
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$45.00 - Sale price
- $36.99
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Joico Defy Damage In a Flash – Instant Bond-Strengthening Reconstructing Treatment
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- $36.99
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$45.00 - Sale price
- $36.99
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