Pureology Strength Cure Shampoo for Damaged & Color-Treated Hair — 33.8 fl oz Concentrated, Sulfate-Free Vegan Repair

Pureology Strength Cure Shampoo is a sulfate-free, vegan shampoo formulated to rebuild hair strength, reduce breakage, and protect color-treated hair while sealing split ends.

This concentrated 33.8 fl oz salon-sized bottle contains Pureology’s Strength Cure formula designed for damaged or chemically treated hair. The shampoo is color-safe and sulfate-free, so it gently cleanses without stripping dyes while delivering anti-breakage technology to improve hair resilience and texture over continued use. It pairs best with the Strength Cure conditioner and treatments as part of a complete system to restore up to 99% of hair’s original strength when used together.

How does this shampoo help reduce breakage and strengthen fragile hair?

Strength Cure Shampoo uses a targeted, advanced anti-breakage complex to reinforce weakened hair fibers and improve manageability. Regular use helps strands become more elastic and less prone to snapping during styling or brushing.

• Concentrated formula deposits fortifying ingredients along the hair shaft.
• Seals split ends to reduce mechanical damage from daily wear.
• Gentle surfactants cleanse without over-drying, preserving natural moisture.
• Clinically backed when used with the Strength Cure system for maximum strengthening.

Will this preserve my hair color while repairing damage?

Yes — the shampoo is specifically created to be color-safe, so it cleanses without stripping pigments. Its sulfate-free base helps maintain color vibrancy while providing reparative benefits to chemically treated hair.

• Zero-sulfate cleansing keeps salon color from fading prematurely.
• Formulation protects cuticle integrity to lock in color molecules.
• Vegan ingredients minimize buildup that can dull hair over time.
• Pairs with color-protecting conditioners for longer-lasting results.

How should I use this shampoo for best results on very damaged hair?

Apply a small amount to wet hair, lather, and rinse thoroughly; repeat if hair is heavily soiled or treated. Follow with Strength Cure Conditioner and occasional professional treatments for deeper repair and visible reduction in breakage.

• Use 2–3 times weekly for intensive repair, more often if needed for normal cleansing.
• Work from roots to ends, focusing on compromised mid-lengths and tips.
• Combine with the matching conditioner and mask to maximize strength restoration.
• For best color retention, avoid hot water and limit high-heat styling tools.

Is this formula suitable for my hair type and lifestyle?

Strength Cure Shampoo is formulated for fine to medium hair that has been weakened by chemical services, heat, or mechanical stress. Its concentrated, vegan, and sulfate-free profile makes it suitable for anyone seeking repair while maintaining color integrity.

• Recommended for chemically treated, heat-styled, or brittle hair.
• Vegan and free of sulfates to support sensitive scalps and colored hair.
• Concentrated 33.8 fl oz size is ideal for frequent use or households sharing product.
• Lightweight enough to avoid weighing down fine hair when used correctly.

Who is this for: Pureology Strength Cure Shampoo is aimed at people with damaged or color-treated hair who want a professional-strength, sulfate-free solution to reduce breakage and improve hair resilience. It works particularly well for those who follow up with a strengthening conditioner or mask and who prefer vegan, color-preserving formulations that fit into a regular at-home repair routine.

Ingredients

AQUA / WATER / EAU, SODIUM COCOYL ISETHIONATE, DISODIUM LAURETH SULFOSUCCINATE, SODIUM LAURYL SULFOACETATE, SODIUM LAUROYL SARCOSINATE, COCO-BETAINE, GLYCOL DISTEARATE, GLYCERETH-26, DECYL GLUCOSIDE, COCONUT ACID, SODIUM HYDROXIDE, PARFUM / FRAGRANCE, SODIUM ISETHIONATE, CITRIC ACID, PPG-5-CETETH-20, SODIUM CHLORIDE, DIVINYLDIMETHICONE/DIMETHICONE COPOLYMER, POLYQUATERNIUM-7, AMODIMETHICONE, POLYQUATERNIUM-10, CARBOMER, ACRYLATES COPOLYMER, PEG-55 PROPYLENE GLYCOL OLEATE, PROPYLENE GLYCOL, C11-15 PARETH-7, HEXYL CINNAMAL, BENZOIC ACID, LAURETH-9, BUTYLENE GLYCOL, GLYCERIN, LINALOOL, TOCOPHEROL, OLEA EUROPAEA FRUIT OIL / OLIVE FRUIT OIL, CAMELINA SATIVA SEED OIL, TRIDECETH-12, SALICYLIC ACID, HELIANTHUS ANNUUS SEED EXTRACT / SUNFLOWER SEED EXTRACT, SODIUM BENZOATE, MAGNESIUM NITRATE, BENZYL ALCOHOL, C12-13 PARETH-23, C12-13 PARETH-3, HYDROLYZED VEGETABLE PROTEIN PG-PROPYL SILANETRIOL, LIMONENE, ARGININE, 2-OLEAMIDO-1,3-OCTADECANEDIOL, POLY(LINSEED OIL), BENZOPHENONE-4, PHENOXYETHANOL, CITRONELLOL, CI 14700 / RED 4, METHYLCHLOROISOTHIAZOLINONE, SORBIC ACID, HAEMATOCOCCUS PLUVIALIS EXTRACT, MAGNESIUM CHLORIDE, METHYLISOTHIAZOLINONE, CAPRYLIC/CAPRIC TRIGLYCERIDE, POTASSIUM SORBATE, CI 15510 / ORANGE 5