The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.
November 2025 in “Quality in Sport” Collagen supplements improve skin, hair, and nails, especially with vitamin C and minerals.
16 citations
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March 2007 in “The Veterinary clinics of North America. Food animal practice” Proper mineral supplementation in cow-calf operations prevents health issues and economic losses.
January 2018 in “International journal of food and nutrition research” Intermittent iron and nutritional supplements can help reduce hair loss.
January 2019 in “Frontiers in neurology” A nutrition program significantly improved a woman's lupus symptoms.
20 citations
,
January 2017 in “Nutrition Research and Practice” Corn silk extract helps reduce prostate enlargement symptoms.
February 2024 in “Animals” Giving selenium yeast to pregnant goats leads to better hair growth and cashmere quality in their babies.
57 citations
,
January 2004 in “Journal of Radiation Research” Zinc sulphate may help reduce skin damage from radiation therapy.
2 citations
,
May 2025 in “Skin Appendage Disorders” Silicones are important for hair care but should be used wisely to balance benefits and environmental concerns.
3 citations
,
January 1990 in “Cancer chemotherapy and pharmacology” Topical thiols may prevent hair loss caused by certain chemotherapy drugs.
20 citations
,
January 2021 in “GeroScience” Spermidine helps protect against aging by preserving telomere length.
8 citations
,
October 2017 in “Dermatology practical & conceptual” A spermidine-based supplement may help hair grow longer by keeping it in the growth phase.
March 2024 in “Indian Journal of Dermatology” Iron supplements may improve hair loss satisfaction even if initial iron levels are normal.
3 citations
,
August 2022 in “JAAD international” Taking a daily multivitamin may be enough to promote hair growth in people with alopecia.
3 citations
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March 2022 in “International Journal of Trichology” Special supplements with collagen, vitamins, and minerals can help treat hair loss.
January 2025 in “MEDS Public Health and Preventive Medicine” Spermidine supplements can help extend the hair growth phase and may be useful for treating hair loss.
November 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” Zinc supplements improve hair growth in camels and support growth and hair development in calves.
4 citations
,
December 2008 in “The Thai Journal of Veterinary Medicine” Zinc methionylglycinate improves dog hair and zinc levels better than zinc sulfate.
16 citations
,
May 2019 in “Hormone and Metabolic Research” Selenium might help with insulin resistance and cholesterol in PCOS, but more research is needed to confirm its benefits.
April 2016 in “Journal of The American Academy of Dermatology” A vitamin and mineral supplement significantly reduced hair shedding in Brazilian women with telogen effluvium.
November 2024 in “PubMed” The supplement improved hair density and was safe to use.
September 2009 in “Annales D Endocrinologie” DHEA supplementation may improve quality of life, neuropsychological functions, and sexual satisfaction in individuals with adrenal insufficiency, but more research is needed to confirm its safety and effectiveness.
23 citations
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January 1991 in “Journal of Animal Science” Biotin supplementation in sow diets is unnecessary.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Silybum marianum extract, Manganese PCA, and Lespedeza capitata extract may help with hair growth and anchorage, potentially aiding in hair loss treatment.
May 2025 in “International Journal of Trichology” The supplement improved hair health and reduced shedding in people with telogen effluvium.
Many people in Saudi Arabia use vitamin D supplements, but few experience toxicity, showing the need for professional guidance when taking these supplements.
1 citations
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November 2022 in “World Family Medicine Journal /Middle East Journal of Family Medicine” People in Jeddah know about Vitamin D and its sources but are unclear on how much they need daily, and while many women take supplements, attitudes towards increasing Vitamin D levels vary.
1 citations
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May 2023 in “Farmacja Polska” Creatine supplementation is safe and effective for boosting energy and muscle growth, especially in high-intensity sports.
December 2025 in “Pharmaceuticals” Illite can effectively carry minoxidil for hair growth without causing scalp irritation.
126 citations
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November 1987 in “The Journal of Pediatrics” Selenium deficiency can cause skin and hair color loss, muscle weakness, and blood cell changes, but these improve with selenium supplements.