HAIR CARE DESK · UNITED STATESPRACTICAL CALLEDITORIAL CHECK · 2026-08-26
STRAND REPORT

Claims, context, and what the bottle leaves out.

DECISION DESK

Choose frequent-use shampoo without drying hair or fading color

Match cleanser strength and routine to near-daily washing while monitoring scalp and length outcomes.

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

THE DESK'S CALL

The headline.

Our call: wash to scalp need, not a weekly rule
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

Rejects a universal wash-frequency rule and instead compares formula, amount, placement, water, and color retention.

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

  • Stretching washes with heavy dry-shampoo use can create a different problem.
  • A “daily” label does not guarantee individual comfort or color compatibility.

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 call: wash to scalp need, not a weekly rule

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

Stretching washes with heavy dry-shampoo use can create a different problem.

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.