Evidence map›Paper›PMID 40785839›Full record

ArticlePatient preference and adherence2025

Hydroquinone Levels in Unregulated Skin-Lightening Creams and Women's Knowledge, Attitudes, and Practices Toward Skin-Lightening Products in Hail, Saudi Arabia.

Farhan Alshammari, Fawaz Alheibshy, Ahmed Alobaida, Mohammed Qaed Alhamad, Othman Abdulrahman Alrashidi, Omar Raja Alharbi, Azizah Dhaher Alshammri, Matar Hamed Alshammari, Laila Lafi Alharbi, Hamad Ahmad Almarri and 4 more

Abstract read
In one paragraph

Article in Patient preference and adherence, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Farhan AlshammariDepartment of Pharmaceutics, College of Pharmacy, University of Hail, Hail, Saudi Arabia.ORCID 0000-0002-5055-6256
Fawaz AlheibshyDepartment of Pharmaceutics, College of Pharmacy, University of Hail, Hail, Saudi Arabia.
Ahmed AlobaidaDepartment of Pharmaceutics, College of Pharmacy, University of Hail, Hail, Saudi Arabia.
Mohammed Qaed AlhamadDepartment of Pharmaceutics, College of Pharmacy, University of Hail, Hail, Saudi Arabia.
Othman Abdulrahman AlrashidiDepartment of Pharmaceutics, College of Pharmacy, University of Hail, Hail, Saudi Arabia.
Omar Raja AlharbiDepartment of Pharmaceutics, College of Pharmacy, University of Hail, Hail, Saudi Arabia.
Azizah Dhaher AlshammriEmergency Department, King Salman Specialist Hospital, Hail Health Cluster, Hail, Saudi Arabia.ORCID 0009-0003-8351-9819
Matar Hamed AlshammariEmergency Department, King Salman Specialist Hospital, Hail Health Cluster, Hail, Saudi Arabia.ORCID 0009-0009-8226-1899
Laila Lafi AlharbiEmergency Department, King Salman Specialist Hospital, Hail Health Cluster, Hail, Saudi Arabia.ORCID 0000-0001-8898-5681
Hamad Ahmad AlmarriEmergency Department, King Salman Specialist Hospital, Hail Health Cluster, Hail, Saudi Arabia.
Abdullah Fahad AltihaniEmergency Department, King Salman Specialist Hospital, Hail Health Cluster, Hail, Saudi Arabia.
Abdulrahman Ibrahim AldibasKing Saud Medical City, Riyadh, Saudi Arabia.ORCID 0009-0001-3143-6769
Layla AlshammariMedical Surgical Nursing Department, College of Nursing, University of Hail, Hail, Saudi Arabia.ORCID 0009-0004-9559-9024
Bushra AlshammariMedical Surgical Nursing Department, College of Nursing, University of Hail, Hail, Saudi Arabia.ORCID 0000-0001-9631-8870

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Skin-lightening products (SLPs) are widely used in Saudi Arabia, driven by cultural ideals that associate lighter skin tones with beauty and social status. Hydroquinone (HQ), a common ingredient in skin-lightening creams (SLCs), inhibits melanin production but carries risks such as skin irritation, hyperpigmentation, and potential carcinogenicity. This study aimed to evaluate the safety of locally available SLCs and investigate consumer knowledge, attitudes, and practices (KAP) regarding SLP use in Hail, Saudi Arabia. Methods: Ten locally available SLCs samples were collected from pharmacies and cosmetic shops in Hail. HQ concentrations were analyzed using validated UV-visible spectrophotometry, while pH levels were measured to assess their safety. A cross-sectional KAP survey of 301 residents was also conducted, exploring awareness, usage habits, and reported side effects of SLPs. Results: Laboratory analysis showed that 80% of the samples contained HQ, with concentrations reaching as high as 7.1%. As HQ is classified as a prescription-only drug at any concentration in Saudi Arabia, the presence of HQ in unregulated products raises significant safety concerns. pH levels ranged from 2.92 to 10.04, with half of the samples outside the optimal skin pH range, posing concerns about irritation risks. Among survey participants, 63% reported using SLPs, primarily in cream form (91%). While 80% recognized potential risks, only half were aware of the ingredients in their products. Reported side effects included redness (18.75%) and pigmentation issues (15.33%), with 16.33% of users requiring medical care. Conclusion: These findings reveal significant safety concerns surrounding locally available SLCs, with HQ concentrations frequently exceeding permissible limits and unsuitable pH levels exacerbating risks. The widespread use of SLPs despite limited consumer awareness underscores the urgent need for stronger regulations and public education to promote safer cosmetic practices in Saudi Arabia.

Indexed as

cosmeticshydroquinoneknowledgepracticessafetyskin-lightening

Identifiers

PMID40785839
PMCPMC12335261

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.