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research Comparison of damage to human hair fibers caused by monoethanolamine- and ammonia-based hair colorants.

4 citations , May 2014 in “PubMed”

This study found that monoethanolamine-based hair color formulations caused significantly more damage to hair than ammonia-based formulations, especially at high concentrations.

research A clinical evaluation of a permanent hair dye designed to reduce allergic contact dermatitis and hair damage

9 citations , July 2022 in “Journal of Cosmetic Dermatology”

In this study, an ammonia-free and PPD-free permanent hair dye was tested on 50 ethnically diverse females, showing no cases of contact dermatitis and significant improvements in hair shine, color, moisturization, porosity, and combability after two dyeing sessions.

research The Development of Squid Ink Melanin Nanoparticles as a Multifunctional Colorant Anchored on Hair Fibers: Preparation, Physicochemical Characterization and Dyeing Performance

April 2026 in “Biomolecules”

This study reported that discarded squid ink was used to develop a high-performance, environmentally friendly hair dye that offers a stable deep black color, UV protection, and preserves hair structure, while showing excellent biosafety in lab tests.

research Cosmetic Approach for Healthy and Damaged Hair

1 citations , January 2017 in “Clinical approaches and procedures in cosmetic dermatology”

This chapter reviews the anatomy and structure of hair, discusses hair damage and analyses, and explores methods for processing hair changes, but presents no new research findings.

research Biomimetics Through Bioconjugation of 16- Methylheptadecanoic Acid to Damaged Hair for Hair Barrier Recovery

April 2024 in “Research Square (Research Square)”

This study found that bioconjugating 16-methylheptadecanoic acid (16-MHA) to damaged hair can mimic the protective properties of 18-methyleicosanoic acid (18-MEA), restoring the hair's structural integrity and moisture homeostasis, even after washing.

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Community Join

5 / 607 results

community I'm convinced creatine causes hair loss for me

207 upvotes 7 months ago

Creatine is believed by some to cause hair loss, potentially by increasing DHT levels, despite conflicting evidence. Users report mixed results when combining creatine with treatments like finasteride, dutasteride, and minoxidil.

community People treat you way nicer when you have hair, I didn’t believe it until it happened to me

374 upvotes 1 year ago

Having hair improves social interactions and treatment by others, with hair transplants and finasteride enhancing confidence and attractiveness. People often receive more positive attention after addressing hair loss.

community 4 years wearing hair systems - what nobody tells you when you start

227 upvotes 6 months ago

Hair systems require frequent maintenance and can be costly, but a DIY approach with bi-weekly changes can help manage these issues. Minoxidil and finasteride were tried but not consistently used due to side effects and personal preferences.

community Hair loss research is a money grab

227 upvotes 10 months ago

Hair loss is linked to DHT, with treatments like finasteride and minoxidil being common but not definitive. Economic interests influence research, and there is potential for new treatments like PP405 and RU58841.

community 2 years of treatment, hair continues to get worse

232 upvotes 1 year ago

A user is worried about hair loss despite using finasteride, oral minoxidil, and keto shampoo for two years and is considering switching to dutasteride. Responses suggest patience, lifestyle changes, or trying additional treatments like microneedling.

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Experts

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