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research Coreopsis tinctoria Nutt. As a New Raw Material for Natural Hair Coloration: Discovering the Dyeing Potential of Chalcones

May 2026 in “Cosmetics”

This study developed a natural hair dye using Coreopsis tinctoria Nutt. extract, finding that it produced yellow to dark brown colors depending on the treatment, with ferrous lactate enhancing dye performance and color stability after washing.

research Marine-Biomass-Derived Melanin–Chitosan Composites as Natural Black Hair Colorants: Charge Reversal and Electrostatic Deposition Mechanism

June 2026 in “Organics”

This study reports the development of a natural hair-coloring system using size-controlled ink particles from cuttlefish ink combined with chitosan, achieving darker and more uniform black coloration on hair than existing plant-based natural colorants, without the need for metallic mordants.

research Hair Tone Estimation at Roots via Imaging Device with Embedded Deep Learning

3 citations , January 2019 in “Electronic Imaging”

This study found that a lightweight Convolutional Neural Network model can accurately and quickly determine natural hair tone from high-resolution images of hair roots, outperforming other popular methods.

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 Studies of normal moult and of artifically induced regeneration of pelage in peromyscus

50 citations , October 1918 in “The journal of experimental zoology”

Artificially inducing hair regrowth in mice can change the normal pattern and timing of hair growth, with minimal color differences between old and new fur.

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community Scalp Massages /scalp hair oiling effective??

5 upvotes 10 months ago

The conversation discusses the effectiveness of natural remedies like scalp massages and oils for hair loss, with some users advocating for proven treatments like minoxidil and finasteride. The original poster prefers natural methods, while others argue that pharmaceuticals are more effective in combating hair loss.

community Did Scientists Just Cure Baldness? UCLA’s New Molecule Could Revolutionize Hair Growth

559 upvotes 1 year ago

PP405 shows promise for hair growth but may need continuous use like Minoxidil. Current treatments include Minoxidil, finasteride, and dutasteride, with skepticism about a true cure due to financial interests.

community What product does David Dobrik use

in Chat 336 upvotes 1 year ago

David Dobrik uses Minoxidil and possibly Finasteride for hair loss but applies them incorrectly. Users suggest he consider surgery due to his financial capability.

community Day 204 of scalp massage, for those who say that is not working….

in Chat 179 upvotes 5 months ago

The conversation discusses a user's hair growth routine involving scalp massages, dermastamping, and rosemary oil, with mixed opinions on its effectiveness. Some users suggest proven treatments like minoxidil and finasteride, while others debate the merits of alternative methods.

community Federal Grant Cuts have impacted PP405 related research

459 upvotes 1 year ago

Federal funding cuts have delayed PP405 research, affecting hair loss treatment progress, though clinical trials will continue. The discussion highlights PP405's potential compared to minoxidil and finasteride and stresses the importance of government-funded research.

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