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GlossaryHair Bleaching (bleach)

chemical process lightening hair by breaking down melanin pigment

Hair bleaching is a chemical process that lightens the natural color of hair by breaking down the melanin pigment within the hair shaft. This is typically achieved using a mixture of hydrogen peroxide and ammonia, which opens the hair cuticle and allows the bleaching agents to penetrate and dissolve the color molecules. The result is lighter hair, which can range from a subtle lift in color to a platinum blonde, depending on the duration and strength of the bleaching process.

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Research

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research Failure of Intercellular Adhesion in Hair Fibers Regarding Hair Condition and Strain Conditions

7 citations , November 2004 in “International Journal of Cosmetic Science”

Hair breaks differently when wet or dry and is affected by its condition and treatments like perms and bleaching.

research Patch Testing With Hair Cosmetic Series in Europe: A Critical Review and Recommendation

47 citations , June 2015 in “Contact Dermatitis”

A standardized patch test for hair cosmetics is needed in Europe to prevent allergies, especially for hairdressers.

research Raman Spectroscopy and Electronic Microscopy Structural Studies of Caucasian and Afro Human Hair

25 citations , May 2019 in “Heliyon”

Hair treatments cause significant structural changes, especially with excessive heat, regardless of ethnicity.

research Cosmetics and Hair Loss

21 citations , July 2002 in “Clinical and Experimental Dermatology”

Hair care products don't cause hair loss if used correctly.

research Essentials of Hair Care Cosmetics

13 citations , September 2016 in “Cosmetics”

Hair care cosmetics affect hair health; know products, ingredients, and procedures.

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Community Join

5 / 31 results

community Have you tried putting unconventional things on to your scalp ?

in Technology 3 upvotes 2 years ago

The conversation is about trying unconventional treatments for hair loss, such as green tea, coffee, cocoa, multivitamin pills, red wine, onion, honey, herbs, and hydrogen peroxide. The user is seeking feedback on these methods to avoid ineffective ones.

community DHT Harms Scalp Microbiome: DHT Itch is REAL

in Research/Science 415 upvotes 5 months ago

Increased Malassezia and Cutibacterium in the scalp microbiome are linked to higher sebum production and inflammation in androgenetic alopecia (AGA). Treatments include ciclopirox shampoo, benzoyl peroxide shampoo, clobetasol propionate, calcipotriol, minoxidil, finasteride, and dutasteride.

community What should I do?

in General 55 upvotes 5 months ago

The user is considering starting minoxidil or getting their scalp checked for permanent scarring due to noticing thinner hair after bleaching. They are seeking advice on hair loss remedies.

community Regrowth or continued regrowth or continued thinning? [Dutasteride+Oral minoxidil]

in Progress Pictures 35 upvotes 3 years ago

A user's concern with their hair thinning while using dutasteride and oral minoxidil, which was switched from finasteride and topical minoxidil after 13 months. The conversation includes advice surrounding potential results, specific treatments used, and side effects.

community Approaching 2 years Fin/Min (Progress)

in Progress Pictures 780 upvotes 1 month ago

The user experienced significant hair regrowth using 1mg oral finasteride, topical minoxidil, keto shampoo, and monthly derma stamping. Results appeared after about four months, with noticeable temple hair lightening.

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