HAIR CARE DESK · UNITED STATESROUTE MAPEDITORIAL CHECK · 2026-08-26
STRAND REPORT

Claims, context, and what the bottle leaves out.

DECISION DESK

Shampoos and scalp cleansing

Explore “Shampoos and scalp cleansing” through 7 concrete decisions without collapsing them into one ranking.

9 SOURCE REFERENCESOWNED USE TEST NOT EXECUTEDU.S. ROUTINE CONTEXT

THE DESK'S CALL

The headline.

Our line: cleanse for the deposit and the scalp need
02

ON THE RECORD

What keeps the headline honest.

This is an editorial conclusion from the stated context. It is not a claimed product trial, diagnosis, or universal ranking.

Decision change

The “Shampoos and scalp cleansing” hub separates use cases and exposes 13 potentially required data fields and 7 potential protocols.

Evidence boundary

pH, cleansing strength, deposits, friction, breakage, color retention, and scalp measures are rarely provided with comparable methods.

03

What could overturn the headline.

THE COUNTER-CASE

  • Do not merge products that share a shelf category but solve different decisions or carry different regulatory status.

STILL UNREPORTED

  • pH, cleansing strength, deposits, friction, breakage, color retention, and scalp measures are rarely provided with comparable methods.
04

BUSINESS DESK

Commercial disclosure

This report contains no affiliate link or paid product placement. We do not turn manufacturer statements into owned findings, and we do not imply a product was used when no dated hands-on protocol exists.

EVIDENCE TRAIL

What the sources carry — and what the desk decides.

The linked sources support product status, labeling, or professional boundaries. They do not prove the editorial winner and they do not stand in for an owned test.

EDITORIAL JUDGMENT

Our line: cleanse for the deposit and the scalp need

A reasoned course of action; not a product result measured by the source.
BOUNDARY OF THE CALL

Do not merge products that share a shelf category but solve different decisions or carry different regulatory status.

pH, cleansing strength, deposits, friction, breakage, color retention, and scalp measures are rarely provided with comparable methods.

Primary and professional sources in the record

  1. Is It a Cosmetic, a Drug, or Both? (Or Is It Soap?)U.S. Food and Drug Administration
  2. Cosmetics Labeling ClaimsU.S. Food and Drug Administration
  3. Summary of Cosmetics Labeling RequirementsU.S. Food and Drug Administration
  4. 21 CFR Part 701 — Cosmetic LabelingOffice of the Federal Register / eCFR
  5. Hair DyesU.S. Food and Drug Administration
  6. 21 CFR Part 740 — Cosmetic Product Warning StatementsOffice of the Federal Register / eCFR
  7. FDA Adverse Event Monitoring System (AEMS)U.S. Food and Drug Administration
  8. Hair cosmetics: an overviewMaria Fernanda Reis Gavazzoni Dias
  9. The shampoo pH can affect the hair: myth or reality?Dias et al.