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Record W4414845804 · doi:10.2147/ccid.s536755

Evaluation of Human Hair Absorption and Retention

2025· article· en· W4414845804 on OpenAlex
Song Hee Kim, Keun Hyung Park

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueClinical Cosmetic and Investigational Dermatology · 2025
Typearticle
Languageen
FieldEngineering
TopicDyeing and Modifying Textile Fibers
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsAbsorption (acoustics)Hair careProduct (mathematics)Hair lossHair dyes

Abstract

fetched live from OpenAlex

Objective: Adequate nutrition and moisture are crucial for preventing hair loss and maintaining hair health and appearance. Hair loss (alopecia) affects up to 50% of the population, causing significant social and psychological impacts. Despite the popularity of hair care products and their ingredients known to be beneficial, existing methods for evaluating the absorption of these substances into hair remain limited. This study assesses the absorption and retention of nutrients and moisture within human hair via 3D Raman spectroscopy. Methods: Three variables were structured for a double-arm study, involving untreated hair, water-treated hair, and hair treated with a supplemental hair care product. Hair samples were analyzed for absorption amount, depth, and dryness at 30 min intervals using Raman spectroscopy with 3D imaging technology. Results: Hair treated with hair care product indicated significantly higher in absorption amount, deeper penetration, and reduced dryness, confirmed by statistical analysis ( p < 0.05). After 30 min of treatment, hair care product-treated samples maintained their absorption parameter, amount, depth and dryness ( p < 0.05). This was further validated by the 3D Raman visualization which provided detailed spatial distribution and retention of absorbed substances within the hair fibers over time. Conclusion: These findings demonstrate the superior absorption and retention of hair care product in hair compared to untreated and water-treated hair, setting a new standard for evaluating hair absorption and product efficacy. Our method offers a promising tool for future clinical research and hair care product development. Keywords: hair absorption, hair moisture, hair treatment, hair growth, hair loss, Raman spectroscopy

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.311
Threshold uncertainty score0.270

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.096
GPT teacher head0.362
Teacher spread0.266 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it