✨ Expert Beauty Reviews & Guides About Us · Our Methodology
Hair Care
🏷️ Olaplex

Olaplex No.4 Bond Maintenance Shampoo

★★★★½ 4.7/5 (4 customer reviews)
Overall Score4.7/5.0
✦ Expert Verdict

Olaplex No.4 Bond Maintenance Shampoo is a top-tier product for anyone looking to restore damaged or chemically treated hair. Its innovative bond-repair technology and gentle, nourishing formula deliver noticeable improvements in hair health, making it a worthy investment for long-term hair care. Highly recommended for those prioritizing strength, shine, and damage repair.

Key Features

  • Patented Bond Building technology repairs broken hair bonds
  • Sulfate-free, gentle cleansing formula
  • Restores strength and shine to damaged and color-treated hair
  • Suitable for all hair types, including chemically treated hair
  • Free from parabens, phthalates, and harmful sulfates
✓ Pros
  • Effectively repairs and strengthens hair from within
  • Improves hair texture and reduces breakage
  • Safe for color-treated and sensitive scalps
  • Leaves hair feeling soft, smooth, and manageable
✗ Cons
  • Higher price point compared to regular shampoos
  • May require consistent use for best results
  • Not ideal for those seeking volumizing effects

Full Review

Olaplex No.4 Bond Maintenance Shampoo is a revolutionary hair care product designed to repair, strengthen, and maintain the integrity of damaged and chemically treated hair. Formulated with Olaplex's patented Bond Building technology, this shampoo works at a molecular level to reconnect broken disulfide bonds in the hair, which are often damaged during coloring, heat styling, or environmental exposure. This unique approach helps to restore the hair's strength, structure, and shine without stripping away natural oils.

This sulfate-free shampoo gently cleanses hair while protecting it from everyday stresses and breakage. It is suitable for all hair types, including color-treated, chemically processed, and natural hair, making it a versatile choice for anyone seeking healthier, more resilient hair. The creamy, nourishing formula also helps to enhance moisture retention, leaving hair soft, smooth, and manageable.

Ideal for regular use, Olaplex No.4 Bond Maintenance Shampoo pairs perfectly with the complementary No.5 Bond Maintenance Conditioner to deliver optimal repair and hydration. Its clean, cruelty-free formulation is free from parabens, phthalates, and harmful sulfates, making it a safer option for those looking for premium hair care with a commitment to quality and sustainability.

Customer Reviews

Jessica M. March 2025
★★★★★
Transformative shampoo for damaged hair
I've been using Olaplex No.4 for a few months now and my hair has never felt stronger or healthier. It gently cleanses without drying out my color-treated hair and really helps reduce breakage. Highly recommend!
David R. January 2025
★★★★☆
Great for repairing chemically treated hair
This shampoo works well with my bleached hair. It leaves my hair feeling soft and repaired, though it takes a few weeks of consistent use to notice the full benefits.
Emily K. February 2025
★★★★★
Gentle yet effective
I love that this shampoo is sulfate-free but still cleans my hair thoroughly. It has helped reduce frizz and made my hair much easier to manage. A bit pricey but worth it!
Sarah L. December 2024
★★★★☆
Excellent quality but pricey
Olaplex No.4 is definitely high quality and has improved my hair texture significantly. The only downside is the cost, but for the results, I think it’s justified.