November 2025 in “Frontiers in Veterinary Science” In this study, zinc supplementation at 2.00 g/camel/day improved hair growth in lactating camels but did not affect milk production, while for calves, doses of 0.50–0.75 g/camel/day enhanced growth and hair development.
February 2021 in “Austin journal of nutrition & metabolism” This study found that among university students, both low and high zinc levels were associated with significant hair loss, while these zinc concentrations did not significantly impact other health issues like diarrhea, acne, or weight loss.
264 citations
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January 2008 in “Journal of biomedical optics” This study found that ZnO nanoparticles in topical skin products do not penetrate beyond the outer skin layers in humans, suggesting minimal safety concerns for subdermal absorption.
55 citations
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March 2009 in “Journal of The American Academy of Dermatology” This study found that latanoprost and bimatoprost, when applied cutaneously to the eyelids, did not induce appreciable eyelash regrowth in patients with alopecia areata over 16 weeks.
53 citations
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October 1978 in “Archives of dermatology” This study reports two cases of acquired zinc deficiency presenting with skin symptoms such as hair loss and acrodermatitis, suggesting these manifestations may help in diagnosing zinc deficiency in humans.
37 citations
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March 2014 in “Journal of Trace Elements in Medicine and Biology” This study reported that Turkish males with male pattern androgenetic alopecia had significantly lower zinc and copper levels in their hair compared to healthy controls, suggesting these imbalances may play a role in the condition's etiology.
16 citations
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December 2008 in “International Journal of Dermatology” This study concluded that no evidence of tachyphylaxis was found in the treatment of scalp seborrheic dermatitis and dandruff using pyrithione zinc-based shampoos over a 48-week period.
5 citations
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May 2020 in “Diagnostics” This study involving male patients with androgenic alopecia found that a higher baseline zinc plasma level, specifically above 10 µmol/L, may predict the success of treatment with 5% topical minoxidil, correlating with increased hair density and diameter in the parietal area.
5 citations
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July 2017 in “Women & Health” This study found that nursing women in the West Bank of Palestine who lived in cities and consumed energy beverages had higher blood zinc levels.
2 citations
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July 2022 in “Asian Journal of Microbiology, Biotechnology & Environmental Sciences” This review highlights zinc's crucial role in both plant growth and human health, while noting the widespread problem of zinc deficiency in various soils, but reports no new findings.
2 citations
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July 2013 in “EDIS” This fact sheet discusses the impacts of zinc deficiency, including its effects on the immune system, cognitive function, and growth in children, and highlights the increased risk for those who consume alcohol excessively; it reports no new clinical results.
July 2024 in “Forum Dermatologicum” This review evaluates various topical treatments for androgenetic alopecia but does not provide new clinical findings, emphasizing the need for selecting therapies with limited systemic side effects.
February 2024 in “International Journal For Multidisciplinary Research” This study introduced a unique herbal hair oil formulation that combines natural extracts such as coconut oil, sesame seeds, and hibiscus to hydrate the scalp, stimulate hair follicles, and improve overall hair appearance, aiming to address issues like thinning, dryness, and dandruff.
January 2024 in “Biological trace element research” In this study, isotretinoin treatment for acne vulgaris was associated with changes in plasma phosphorus, potassium, magnesium, and zinc levels, potentially affecting kidney function and contributing to side effects like fatigue and dry skin.
December 2023 in “Journal of nutritional science and vitaminology” This study in mice found that a zinc-deficient diet suppressed body weight gain and increased kidney and cecum tissue weight without decreasing serum alkaline phosphatase activity. Additionally, zinc deficiency caused alopecia and intestinal changes in C57BL/6J mice, potentially affecting nutritional status.
April 2023 in “Acta Poloniae Pharmaceutica” This study found that using Urtica cannabina extract shampoo led to increased levels of copper, zinc, and iodine in the scalp hair of Mongolian women, along with improvements in hair growth, diameter, and density compared to a regular shampoo.
January 2021 in “Middle East journal of applied sciences” This article discusses the widespread issue of zinc deficiency affecting plant, animal, and human health, and reports no new clinical results; the authors emphasize the need for adequate zinc availability in agriculture and nutrition.
June 2022 in “International Journal of Health Sciences (IJHS) (En línea)” This study found that pregnant women in Al Muthanna Province, Iraq, frequently have low serum zinc and ferritin levels, especially those experiencing hair loss, posing a significant public health concern.
38 citations
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June 2005 in “Contact Dermatitis” This case report describes a patient with an allergic sensitization to minoxidil, indicating that such patients should pursue alternative therapies to treat androgenetic alopecia.
8 citations
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April 2011 in “Surgery today” This study found that sodium zinc dihydrolipoylhistidinate reduced chemotherapy-induced hair loss in rats, suggesting its potential as a treatment for this side effect.
In this study, researchers highlighted that while oral valproate often causes hair loss, preliminary experiments with topical valproic acid solution suggest its potential for hair regeneration, potentially offering fewer side effects and reduced cost compared to existing treatments.
December 2025 in “Obesity Surgery” In this study, researchers found that patients undergoing one-anastomosis gastric bypass experienced a greater incidence of low serum zinc levels and related symptoms, such as hair loss and delayed wound healing, compared to those undergoing sleeve gastrectomy.
August 2023 in “International Journal For Multidisciplinary Research” This review discusses the potential benefits of millets for managing Polycystic Ovary Syndrome by improving glycemic control and insulin sensitivity, but reports no new clinical results.
January 2026 in “International Journal of Pharmaceutical Quality Assurance” In this study, researchers observed that patients with Alopecia Areata had significantly lower serum zinc and higher copper levels compared to healthy controls, indicating a disrupted zinc-copper balance that may contribute to the disease's pathogenesis.
This research developed a zinc-doped nanocomposite using biodegradable materials, observing effective bone targeting and regeneration capabilities in vivo, with no observed cytotoxicity in the MG63 cell line, potentially due to blocking Farnesyl Diphosphate Synthetase to inhibit osteoclastic activity and promote osteogenesis.
March 2004 in “Journal of The American Academy of Dermatology” 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.
195 citations
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February 2005 in “Journal of biological chemistry/The Journal of biological chemistry” This study shows that ZIP7 is a functional zinc transporter in mammalian cells, facilitating the movement of zinc from the Golgi apparatus to the cytoplasm.
7 citations
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May 2018 in “Curēus” In this case report, a 60-year-old woman with eyebrow hypotrichosis experienced significant and lasting eyebrow growth after daily use of bimatoprost 0.03% solution, highlighting its potential as an effective treatment for eyebrow hair restoration.
January 2026 in “International Journal of All Research Education & Scientific Methods” This review highlights recent advancements in understanding and treating alopecia, emphasizing genetic and immune factors involved in different forms, and discusses emerging therapies such as gene-editing and exosome-based treatments, though achieving complete hair regrowth remains a challenge.
November 2025 in “Quality in Sport” This study reviews natural hair and scalp care methods, highlighting the importance of plant-derived ingredients and scalp type diagnostics for effective trichological management and optimal hair health.