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GlossaryHair Dye (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.

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research In Vitro and In Vivo Study of Dye Diffusion into Human Skin and Hair Follicles

69 citations, January 2002 in “Journal of biomedical optics”

Dyes can penetrate human skin and hair follicles up to 1.2 mm deep and the sebaceous gland can store dye; Indocyanine Green lotion was made for safe dyeing and monitoring.

research Dyeing Regions of Oxidative Hair Dyes in Human Hair Investigated by Nanoscale Secondary Ion Mass Spectrometry

25 citations, January 2013 in “Colloids and surfaces. B, Biointerfaces”

Hair dye colors mainly target melanin granules in black hair.

research Fiber-Safe Extraction of Red Mordant Dyes from Hair Fibers

13 citations, January 1995 in “Journal of the American Institute for Conservation”

Researchers developed a less damaging way to extract red dyes from wool using EDTA and DMF, preserving the fiber's strength for further analysis.

research In-Vitro and In-Vivo Study of Dye Diffusion into the Human Skin and Hair Follicles

9 citations, November 2000 in “Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE”

Dyeing hair can help target and destroy hair follicles selectively.

research Porosity at Different Structural Levels in Human and Yak Belly Hair and Its Effect on Hair Dyeing

6 citations, May 2020 in “Molecules/Molecules online/Molecules annual”

Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.

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community To all my thinning homies - use hair dye!!

in Styling 51 upvotes 1 year ago

The conclusion of the conversation is that dying the hair can be an effective method for managing hair loss, particularly for those with diffuse thinning.

community 45 days on 0.5mg dut, 2.5mg oral min, a bit of hair dye and nothing else

in Is this regrowth? 16 upvotes 1 year ago

The user is sharing their experience with using 0.5mg dutasteride, 2.5mg oral minoxidil, and hair dye for 45 days. Another user encourages them to continue as it is still too early to see significant improvement.

community The theory that explains everything. The malloclusion theory has been proven.

in Research/Science 28 upvotes 1 year ago

Brian Dye's theory links skeletal malocclusion type II to hair loss, suggesting it's a blood flow issue. Treatments mentioned include minoxidil, finasteride, and anti-inflammatory drugs like benaxoprofen.

community 9 months oral min, 2 months topical min. Late 30s.

in Progress Pictures 53 upvotes 4 months ago

The user used oral finasteride, topical minoxidil foam, a derma roller, keto shampoo, Hims thick fix shampoo, hair dye, and rosemary oil for hair restoration. They reported no side effects and noted significant improvement, especially in the hairline.

community 3 month progress on Manual combi fin/min pill

in Progress Pictures 19 upvotes 4 months ago

A user shared their 3-month progress using a combined finasteride and minoxidil pill for hair loss, noting early signs of regrowth. They also use biotin shampoo/conditioner, take Vyvanse and Propranolol, and bleach/dye their hair every 3 weeks.

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