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Home/Comparisons/OLAPLEX N°.4 Bond Maintenance Shampoo vs. Pureology Hydrate Shampoo

OLAPLEX N°.4 Bond Maintenance Shampoo vs. Pureology Hydrate Shampoo

Strengthening Bond Care vs. Sulfate-Free Hydration: Which Color-Safe Shampoo Fits Your Routine?

By Renata Cole, Lead Beauty Editor||How we test

Not sure which is right for your hair? Take our 2-minute quiz to get a personalized recommendation.

Compare the Top Picks

Prices appear only when a current Amazon catalog response is available.

ProductKey detailPriceBuy
OLAPLEX N°.4 Bond Maintenance™ Strengthening ShampooConcentrated, sulfate-free and color-safe shampoo that cleanses while supporting stronger, softer-looking hair across straight, wavy, curly, and coily patternsSee price on AmazonCheck Price on Amazon
Pureology Hydrate ShampooSulfate-free moisturizing shampoo with rose extract and green tea for dry or color-treated hairSee price on AmazonCheck Price on Amazon
OLAPLEX N°.4 Bond Maintenance™ Strengthening Shampoo

OLAPLEX N°.4 Bond Maintenance™ Strengthening Shampoo

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Sulfate-free, color-safe formula for chemically treated hair
Concentrated cleanser designed for medium-to-coarse textures
Independent editorial testing found effective buildup removal without a squeaky finish
Premium price for an 8.5 fl oz bottle
May still require a richer conditioner on very dry hair
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Our Winner
Pureology Hydrate Shampoo

Pureology Hydrate Shampoo

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Sulfate-free formula preserves color
Rich, sophisticated scent
Concentrated - a little goes a long way
Premium price point
Smaller bottle size
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For medium-to-thick, dry, damaged, color-treated hair, Pureology is the more directly audience-matched choice because its official page specifically prioritizes deep hydration, sulfate-free cleansing, and color protection; this is a source-based fit judgment, not hands-on testing.

Our Full Verdict

Choose Pureology Hydrate for medium-to-thick dry or dehydrated color-treated hair when moisture retention and sulfate-free cleansing are the priority. Choose OLAPLEX N°.4 instead for straight, wavy, curly, or coily medium-to-coarse hair where the stated priority is strengthening and bond reinforcement. The sources do not establish an independent overall performance winner, and no hands-on testing was performed.

Pureology Hydrate Shampoo

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OLAPLEX N°.4 Bond Maintenance™ Strengthening Shampoo

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Reviewed by the SilkierStrands Editorial Team · · Prices subject to change. Amazon affiliate links - we earn a commission at no extra cost to you. · How we test