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Glossary Hair Dye

chemical substance used to change hair color

Hair dye, also known as hair color or hair coloring, is a chemical substance used to change the color of hair. It can be applied for cosmetic reasons, such as covering gray hair, or for fashion purposes to achieve a desired look. Hair dyes can be temporary, semi-permanent, or permanent, with the latter involving a chemical reaction that alters the hair's natural pigment.

Related Terms

Research

5 / 1000+ results

research 55 cases of allergic reactions to hair dye: a descriptive, consumer complaint‐based study

98 citations , November 2002 in “Contact Dermatitis”

This study found that adverse reactions to para-phenylenediamine in hair dye, including severe allergic contact dermatitis, may be more common than currently reported and often misdiagnosed.

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 Percutaneous penetration of hair dyes

66 citations , February 1985 in “Archives of dermatological research”

Hair dyes penetrate the scalp very minimally, less than 1%.

research Metal-Chelation-Assisted Deposition of Polydopamine on Human Hair: A Ready-to-Use Eumelanin-Based Hair Dyeing Methodology

63 citations , February 2017 in “ACS biomaterials science & engineering”

In this study, polydopamine emerged as a safe and effective alternative to traditional hair dyes like PPD for dyeing gray hair permanently, showing resistance to detergents and causing less toxicity and hair loss in mice.

research An ultrastuctural study of hair fiber damage and restoration following treatment with permanent hair dye

40 citations , February 2002 in “International Journal of Dermatology”

In this study, hair damaged by permanent dye showed signs of recovery over time, with near complete restoration to its original state after eight weeks.

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Learn

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learn Hair Transplant

Hair transplantation moves DHT-resistant follicles from a donor area (back and sides of the scalp) into thinning or bald areas. The transplanted hair is generally permanent, though surrounding native hair can keep thinning.

Can I dye my hair after a hair transplant? Wait 4-6 weeks before dyeing your hair after a hair transplant.
Can I style or care for my transplanted beard after the hair transplant? You can style and care for your transplanted beard like natural hair after it heals.
When can I cut or style my hair after a hair transplant? You can cut or style your hair about 1 month after a hair transplant.
All 4 questions on Hair Transplant →

learn Scalp Micropigmentation

Can I still color or style my hair after scalp micropigmentation? You can color and style your hair after scalp micropigmentation once fully healed.

learn Hair Fibers

cosmetic product that temporarily makes hair appear thicker

learn Hair Multiplication

extract, clone, and reinsert your own hair cells

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Community Join

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community Fighting Hair loss AND Grey Hair

2 upvotes 4 years ago

OP is exploring ways to stop or reverse greying hair, using NAC and considering PABA supplements. Some users suggest hair dye, black strap molasses, and copper as potential solutions.

community After fighting hairloss for 5 Years, now i am getting grey hair.

3 upvotes 4 months ago

The user managed hair loss with RU58841 and finasteride but is now experiencing graying hair, possibly due to stopping oral minoxidil. Many responses suggest embracing or dyeing gray hair, emphasizing that having gray hair is preferable to balding.

community Please advise those who have succeeded in reversing their hair color from white to black

5 upvotes 2 years ago

A 25-year-old male seeks advice on reversing white hair to black. Suggestions include using hair dye, peptides like TB-500 and BPC-157, and finasteride for hair growth.

community 5 month progress on Locklabs oral tablet

23 upvotes 8 months ago

The user experienced significant hair regrowth over five months using Locklabs oral tablets, with no side effects and only a minor shed. They dye their hair black to cover natural blonde, which may affect perceived hair density.

community 200 days on dut + min, what do you think?

599 upvotes 11 months ago

The user reports significant hair regrowth after 200 days using dutasteride and minoxidil, attributing changes to hair dye. Others doubt the authenticity and discuss treatment effectiveness and side effects.

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