Head to head
Nº.4 Bond Maintenance Strengthening Shampoo vs Hydrate Shampoo
Olaplex Nº.4 Bond Maintenance Strengthening Shampoo edges out Pureology Hydrate Shampoo, 7.6 to 7.5. It wins on formula and texture and feel, while the Hydrate Shampoo is stronger on results and value.
Benefit fingerprints
What each one does.
Olaplex Nº.4 Bond Maintenance Strengthening Shampoo
Pureology Hydrate Shampoo
Side by side
Every detail, compared.
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- Damage repair
- Split ends
- Frizz control
- Shine
- Hydrating
- Color protection
- Damage repair
- • Bleached, colored or chemically treated hair
- • Medium to coarse hair that needs softness and shine
- • Anyone already using the Olaplex bond treatments
- • Dry, color-treated hair of normal to thick texture
- • Vivid or bleached hair that needs a gentle, moisturizing wash
- • Pairing with the matching Hydrate conditioner
- Sulfate-free, color-safe cleanse built around Olaplex's patented bond-building ingredient
- Reviewers report softer, shinier and less frizzy hair, especially on bleached or colored lengths
- Concentrated formula; brand says 250 ml lasts up to 100 washes
- Sulfate-free and vegan
- Rich moisture for dry, color-treated hair
- Concentrated: Ulta says a bottle lasts 75+ washes
- $34 for 250 ml is expensive for a daily shampoo
- Some users find it too gentle for oily scalps or heavy product buildup
- Expensive up front
- Silicones and polymers can weigh down fine waves
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Affiliate links — we may earn a commission. How we make money
FAQ
Quick answers.
Which is better, Nº.4 Bond Maintenance Strengthening Shampoo or Hydrate Shampoo?
Olaplex Nº.4 Bond Maintenance Strengthening Shampoo edges out Pureology Hydrate Shampoo, 7.6 to 7.5. It wins on formula and texture and feel, while the Hydrate Shampoo is stronger on results and value.
Which is better value?
Olaplex Nº.4 Bond Maintenance Strengthening Shampoo works out to about $4.02 / oz and Pureology Hydrate Shampoo to about $4.34 / oz, based on typical non-Amazon retail prices when we last checked.
How do you score them?
Both are scored on the same five-factor rubric (results, formula & ingredients, texture & experience, value, community love), using the formula or specs, verified creator reviews, community consensus and value. Brands can’t pay for placement.