Product analysis / Shampoo

OLAPLEX

Nº.4 Bond Maintenance™ Strengthening Shampoo

Full size, 250 ml

A more treatment-oriented, scented shampoo explicitly positioned for medium-to-coarse hair.

Opens the matching brand product page, which may offer several sizes. Confirm the formula and choose your size before checkout. Current price and availability are set by the seller; we do not process orders.

AI-generated illustration for OLAPLEX Nº.4 shampoo: one pale bottle with a large numeral 4; not official packaging.
AI-generated illustration · not official product photography

The useful distinction

What fits—and what remains unknown.

01 / Fit

Who might compare it

Shoppers with medium-to-coarse hair who are comfortable with fragrance and want to compare a concentrated formula.

Consider before choosing

Contains the brand's signature scent; not the fragrance-free choice on this list.

02 / Source

Brand-published facts

  • OLAPLEX positions this shampoo for medium-to-coarse hair and lists a 250 ml full size.
  • The brand says it is color-safe and free of SLS/SLES sulfates.
  • Its official page describes a grapefruit, mint, ginger and sage scent profile.

These statements summarize the brand page; they are not our measured results.

03 / Interpretation

Our shopping judgment

The clearest contrast to the two fragrance-free picks: assess texture and scent preference before brand claims about repair.

An editorial interpretation of published information, not a personal-use test.

04 / Limits

Not independently verified

  • We have not verified strengthening or shine outcomes independently.
  • The formula's feel on fine hair is not tested by us.

Trace the evidence

Read the original product page.

Source type: brand-published product information. Reviewed for this page on 2026-09-25. Recheck packaging and the current brand listing before purchase.

PRIMARY SOURCE / BRAND PAGEOLAPLEX · Nº.4 Bond Maintenance™ Strengthening ShampooOpen source US shopping context. No affiliate parameters in this link.