17 citations
,
January 2020 in “Molecules” This study found that 42% of red yeast rice dietary supplements did not list monacolin concentrations on their labels, and only half of those that did contained the declared amounts.
15 citations
,
July 1984 in “Nutrition Research” Selenium increased in hair but not in blood after taking supplements.
14 citations
,
August 2016 in “Journal of nanomedicine research” This animal study found that biscuits fortified with zinc oxide nanoparticles improved growth, appetite, and hair growth in zinc-deficient rats more effectively than traditional zinc forms, without apparent toxicity.
13 citations
,
August 2020 in “Journal of Laparoendoscopic & Advanced Surgical Techniques” This study found that temporary hair loss is common after laparoscopic sleeve gastrectomy, and biotin supplementation showed low effectiveness in preventing this hair loss.
12 citations
,
March 2019 in “Cosmetics” In this study, a combined regimen of an oral supplement with Pinus pinaster, Grape seed extract, vitamins, and minerals, plus high SPF sunscreen, significantly improved mild-to-moderate facial melasma in 30 women over 84 days, reducing pigmentation and enhancing cosmetic appearance with no reported adverse effects.
1 citations
,
February 2023 in “Animals” In this study, the inclusion of a feedstuff high in energy along with soybean meal enhanced body condition, body mass index, and reproductive performance in sheep fed low-protein forage.
June 2024 in “British Journal of Dermatology” In this case report, an 80-year-old woman experienced darkening of previously grey hair, which may be linked to vitamin B supplementation, though its effectiveness is typically associated with reversing greying only in the presence of an initial vitamin B deficiency.
June 2023 in “Italian journal of dermatology and venereology” In this study, researchers evaluated an oral supplement containing arginine, l-cystine, zinc, and vitamin B6, finding it effective as an adjuvant treatment for telogen effluvium, as indicated by improved hair quantity and diameter after three months in 18 patients.
This study found that bariatric surgery patients with a prescription for supplements had fewer nutrient deficiencies and less hair loss 12 months post-operation compared to those without supplements.
April 2018 in “Journal of Investigative Dermatology” This study found that women taking a daily oral supplement with omega-3 fatty acids, phytonutrients, and antioxidants for 14 weeks reported perceived improvements in hair growth, strength, and moisturization.
19 citations
,
April 2021 in “Pain Medicine” This case report highlights the potential for Kratom misuse leading to addiction and significant health risks, indicating a need for more detailed human studies on its effects and management strategies.
12 citations
,
March 2000 in “Clinical Chemistry” This study found that a daily dose of 50 mg DHEA only slightly increased the urinary testosterone/epitestosterone ratio for a short period, without exceeding the IOC's acceptable limit.
11 citations
,
September 2012 in “Journal of animal physiology and animal nutrition” This study demonstrated that mink hair growth and pelt quality significantly depend on dietary protein levels and DL-methionine supplementation during the growing-furring period.
7 citations
,
January 2017 in “Annals of Dermatology” This study found that among patients with twenty-nail dystrophy, those treated with oral cyclosporine in combination with a dietary supplement showed significantly better improvement in nail condition and quality of life than those treated with the supplement alone.
1 citations
,
August 2017 in “Journal of food and nutrition research” This study found that the black bean-licorice-biotae folium extract may improve hair diameter, scalp moisture, and sebum secretion, although its effect on hair density was not significant.
June 2026 in “OSF Preprints (OSF Preprints)”
In this 24-week study, oral supplementation with hydrolyzed low-molecular-weight porcine placental peptides significantly improved scalp elasticity, hair diameter, tensile strength, surface roughness, and luster compared to placebo, suggesting its potential as a nutritional intervention for age-related scalp and hair changes.
February 2026 in “Aesthetic Cosmetology and Medicine” In this case study, a 38-year-old woman with female androgenetic alopecia experienced improved hair density, reduced scalp oiliness, and enhanced hair structure after ten microneedle mesotherapy treatments combined with saw palmetto supplementation, with no adverse effects reported.
This study reports that their population showed significant prevalence of vitamin D deficiency, but the impact of supplementation on pregnancy rates remains unclear and requires more research.
November 2024 in “PubMed” Results of the effect and safety of a gummy supplement with B vitamins, zinc, and botanicals on hair growth and quality in women with thinning hair are not reported in this abstract.
November 2022 in “Zenodo (CERN European Organization for Nuclear Research)” This promotional text about Alpha Xtra Boost does not report any new research findings or clinical results.
November 2022 in “Journal of the Endocrine Society” This case study highlighted that excessive iodide intake from the supplement TauriNac was associated with the development of hypothyroidism in a cystic fibrosis patient, which reversed upon discontinuation.
October 2008 in “Trace Elements and Electrolytes” In this study, perimenopausal women with initially high hair concentrations of calcium, magnesium, and silicon experienced a decrease in these elements after intermittent dietary supplementation with calcium, magnesium, silicon, and vitamin D.
The authors of this study concluded that higher calcium levels in hair may indicate early metabolic changes leading to osteopenia or osteoporosis in menopausal women, even before detectable by standard DEXA imaging.
July 2021 in “Indian journal of drugs in dermatology” In this study, the combination of intradermal meso-solution and topical 5% minoxidil significantly increased hair re-growth in men with androgenetic alopecia compared to minoxidil alone.
72 citations
,
November 2020 in “Frontiers in Pharmacology” This review highlights potential benefits of jujube fruits on blood health, suggesting they might aid anemia prevention or treatment by supporting erythropoiesis and immune regulation, based on evidence from cell and animal studies.
14 citations
,
January 2015 in “Clinical Nutrition Research” This clinical trial found that the extract complex of Cistanche tubulosa and Laminaria japonica (MK-R7) significantly improved hair density and diameter in patients with patterned hair loss over 16 weeks.
9 citations
,
March 2014 in “TURKDERM” This review discusses nutritional factors important for hair growth and the need to assess and address deficiencies in cases of alopecia, but does not report new clinical results.