Olaplex No.4 Bond Maintenance Shampoo Review | SkinSourcer

The Shelf · Hair · The Healthy Hair Edit

Olaplex No.4 Bond Maintenance Shampoo
No. 06 in Edit 031

Olaplex No.4 Bond Maintenance Shampoo

Cleansers USA Approx. $33

The wash-day step of the patent that started the bond category. The No.7 oil already lives on this shelf; this is the maintenance shampoo built on the same molecule, which makes it the rare shampoo that belongs to the repair half of this edit rather than the cosmetic half.

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Why we like the No.4 Bond Maintenance Shampoo

  • The original patented bond chemistry, in the shower
  • Maintains salon treatments between visits
  • Pairs with the oil this shelf already keeps
Texture
A low-lather bonding shampoo
Key ingredients
Bis-aminopropyl diglycol dimaleate
Fragrance
Scented
Best for
Chemically treated hair · Maintaining salon repair at home · Pairing with the No.7 oil on this shelf
Works on
Damage · Breakage
Made in
USA
Where to buy
Amazon
Price
$32.99, approximate
Listing checked
2026-08-28

Our verdict on the Olaplex No.4 Bond Maintenance Shampoo

The bond patent, on wash day.

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Reviewed 2026-08-28. Olaplex No.4 Bond Maintenance Shampoo appears in The Healthy Hair Edit. Every product on The Shelf is listed in the product index.