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research Effects of semi-permanent hair dyes and conditioning polymers on the colour enhancing properties of shampoo formulations

November 2016 in “University of the Arts London Research Online (University of the Arts London)”

This study concluded that adding polymeric conditioning actives to shampoos improved color retention in permanently dyed hair, while additional cationic dyes at certain pH levels weakly dyed the hair directly.

research Design and Development of a Shampoo with Dark Semi-Permanent Dyes for Gradual Gray Hair Coverage

April 2026 in “Cosmetics”

This study developed and tested a shampoo with semi-permanent dyes designed to gradually cover gray hair, reporting maintained stability and effective gray–black coloration on high-canities hair tresses through eight wash cycles.

research THE CHEMISTRY MECHANISM OF HAIR DYES

1 citations , December 2022 in “Middle East Journal of Science”

This review covers hair dye formulations, their mechanisms, and potential applications, but reports no new findings; the authors highlight the process of oxidative dyeing and repairing damaged hair.

research Types of Hair Dye and Their Mechanisms of Action

84 citations , April 2015 in “Cosmetics”

This review discusses various types of hair dyes, their mechanisms of action, molecular structures, application methods, and formulation aspects, but reports no new research findings.

research Hair Cosmetics: Dyes

21 citations , October 2014 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas”

This review discusses the role of hair dyes in cosmetic dermatology, their effects on hair and scalp health, and the importance of dermatologists understanding potential side effects; it reports no new findings.

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community My derm said they came up with a new serum that is better then fin? What’s y’all’s thoughts

7 months ago

A new serum claims to enhance hair regrowth by amplifying oxygen delivery, improving the effectiveness of treatments like exosomes and peptides. Users are skeptical, questioning its efficacy compared to established treatments like Minoxidil and Finasteride.

community Sunlight: Does it Stimulate Hair Growth or Hair Loss?

in Research/Science 64 upvotes 2 years ago

The conversation discusses whether sunlight exposure affects hair growth or loss, with mixed anecdotes and theories but no clear consensus. Some suggest moderate sunlight can benefit hair by providing vitamin D, while others doubt its effectiveness compared to treatments like Minoxidil or finasteride.

community Does the watery ejaculate issue ever resolve?

in Finasteride/Dutasteride 100 upvotes 7 months ago

Dutasteride and finasteride can cause watery ejaculate, which may persist for some users. Zinc supplements or switching to topical treatments are suggested to alleviate this side effect.

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