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The correction does not change the conclusion that 2-deoxy-D-ribose helps hair regrowth.

This review reported that certain systemic drugs, including antiepileptics and anticancer drugs, can lead to changes in hair pigmentation, such as hypopigmentation or hyperpigmentation, with varied prevalence and clinical characteristics.

This study found that while there were no significant objective changes in facial hirsutism using topical finasteride, most patients perceived a reduction in hair growth after treatment.

This article reviews historical reports of skin changes, such as pseudoacanthosis nigricans, associated with cholesterol-lowering drugs like triparanol and nicotinic acid, but presents no new clinical findings.

This study found that ulcerative colitis is associated with diverse molecular changes and chronic inflammation, with some biomarker levels partially recovering during remission.

COVID-19 might cause gray hair to regain color.

Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.

This study found that exposure to artificial sunlight led to variable changes in ethyl glucuronide levels in hair, with both increases and decreases observed depending on hair characteristics.

Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.

This study found that the TrichoScan effectively measures hair growth changes, showing significant increases in hair counts and thickness in men with androgenetic alopecia after 6 months of using 5% minoxidil solution.

In this study, modulating Tyrosinase expression altered mouse coat color by affecting melanosome accumulation, indicating that melanosome maturity plays a role in determining skin and hair color beyond total melanin content.

This study found that the pituitary gland is crucial for normal pelage color cycles in weasels, with certain hormones influencing regrowth of pigmented or white hair after molting.

This study indicates that sheep prenatally androgenized with testosterone show wool fiber diameter changes that parallel the increased hair diameter in women with polycystic ovary syndrome.

This case report describes a 19-year-old female with systemic lupus erythematosus who exhibited eyelash trichomegaly, a rare disorder involving changes in eyelash characteristics, alongside diffuse alopecia.

In this case study, researchers documented a Chinese boy with hair color changing to red and identified MC1R genetic mutations as the cause, rather than zinc deficiency, enhancing our understanding of hair heterochromia due to genetic factors.

This review discusses the impact of various external factors like cosmetics, traction, and radiation on hair health and color, but reports no new findings.

In this study, ultrastructural examination of hair in children treated with valproic acid showed a normal hair surface and cuticular pattern, despite reported hair changes with the drug.

This study found that beard and body hair can be used as additional donor sources for scalp transplants in androgenic alopecia, retaining their original color, curl, and calibre.

This study found that the structure and mineral content of dromedary camel hair, specifically the medulla patterns, medulla index, and elemental composition, change with age, revealing differences among camels aged 1 year, 3-5 years, and 8-10 years.

In this case report, a 54-year-old male experienced hair loss and discoloration after starting mirtazapine, with full hair regrowth and color restoration occurring within 10 weeks of stopping the medication.

In this study, researchers developed an herbal shampoo using extracts from multiple plants and observed that specific combinations effectively inhibited bacteria like Pseudomonas aeruginosa and Staphylococcus species, with certain formulations also being well-received by consumers for color and overall satisfaction.

This study found that the acidic hair straightening formulation at pH 1.0 improved hair alignments and straightening effectiveness more than pH 2.0, but it weakened fiber strength and affected hair color and composition.

In this study, the researchers found that using dragon fruit peel extract in a gray hair dye formulation, along with specific adjuvants, produced a dark black color on gray hair, demonstrating its potential as a natural colorant alternative to synthetic dyes.

In this study, phenylthiocarbamide intake was associated with hair graying in rats, while switching to tap water led some rats to regain their original fur color, suggesting dietary factors influence pigmentation.

This study presents the first reported case of woolly hair nevus appearing during adolescence, with significant improvement observed 5 years later and structural changes in the hair documented.

This article discusses how the balding scalp's exposure to UV and near-infrared light may accelerate aging, with changes detectable under ultraviolet light; it presents no new clinical findings.

This study reported that relocation in police horses was associated with elevated hair cortisol concentrations, possibly suggesting altered welfare due to changed surroundings, and that seasonal variations affected both cortisol levels and hair growth.

This study evaluated factors influencing hair steroid concentrations in early infancy, finding small effects from birth mode, season, and age-related changes, suggesting hair analysis as promising for assessing long-term endocrine activity.

In this randomized, placebo-controlled study, Kūlaris supplementation significantly improved quality of life for participants with mild-to-severe acne over 12 weeks, though no significant changes in general skin health measures were observed compared to placebo.

This case report describes a 40-year-old woman with Cronkhite-Canada Syndrome whose symptoms, including gastrointestinal issues and skin changes, improved significantly with corticosteroids, co-infection treatment, and nutritional counseling.