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learn Selenium

What is Selenium and why is it important for healthy hair and scalp function? Selenium is essential for hair health due to its antioxidant properties and role in thyroid function.
Can Selenium supplements help prevent or reverse hair loss caused by nutritional deficiencies? Selenium supplements may not effectively prevent or reverse hair loss from nutritional deficiencies.
What are the risks of taking too much Selenium, and how can you get the right amount safely? Excess selenium can cause toxicity; aim for recommended dietary amounts through food sources.
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Research

5 / 1000+ results

research Acute selenium poisoning by paradise nuts (Lecythis ollaria)

36 citations , January 2010 in “Human & experimental toxicology”

This case report found that two women developed toxic selenium levels after consuming paradise nuts, resulting in symptoms like massive hair loss and nail discoloration.

research Scientific opinion on the tolerable upper intake level for selenium

30 citations , January 2023 in “EFSA journal”

This review establishes a tolerable upper intake level of 255 μg/day for selenium in adults, warning that supplements and Brazil nuts may cause excess intake.

research Selenium and Polycystic Ovary Syndrome; Current Knowledge and Future Directions: A Systematic Review

16 citations , May 2019 in “Hormone and Metabolic Research”

This systematic review found insufficient evidence to support protective effects of selenium on polycystic ovary syndrome complications, despite some studies suggesting it may reduce insulin resistance and dyslipidemia.

research Selenium Compounds and Their Bioactivities: Molecular Mechanisms and Prospects for Functional Food and Therapeutic Applications

7 citations , August 2025 in “Plants”

This review highlights the role of plant-derived organic selenium compounds, noting their high bioavailability and low toxicity, and provides a comprehensive overview of selenium's uptake in plants and metabolism in humans, offering a theoretical basis for future nutritional research.

research Selenium Toxicity in Domestic Animals

4 citations , May 2021

This book chapter discusses the mechanisms and prevention of selenium toxicity in livestock and reports no new experimental results; it emphasizes reducing selenium in the human food chain through animal products.

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Community Join

5 / 116 results

community Anyone lose hair on selenium sulfide? (Selsun Blue)

1 upvotes 10 months ago

Selenium sulfide shampoo helped with a sore scalp but may cause hair root damage. Users experienced hair loss with selenium sulfide and ketoconazole, suggesting reducing use if hair loss occurs.

community DHT Blocker without Selenium and Zinc??

5 upvotes 1 year ago

A female user is seeking a DHT blocker without Selenium or Zinc due to hair breakage and is currently using Saw Palmetto, Nature's Bounty Hair, Skin and Nails, Pumpkin seed oil, Dermastamp, and Pura D'or products. She has tried Minoxidil without success and is considering Finasteride but prefers natural options first.

community scalp inflammation and itching

5 upvotes 3 months ago

The conversation is about dealing with scalp inflammation and itching related to hair thinning. Suggested treatments include ketoconazole, selenium sulfide, 10% sulfur soap, washing hair with cold water, and using a moisturizer serum.

community 16 days. Topical Min 5% once a day • derma roller 0.25mm every day, 1mm once a week • Foligain Trioxidil shampoo (I let it rest for 10 minutes) • mix of supplements

in Progress Pictures 102 upvotes 1 year ago

The conversation is about a user's hair regrowth progress using topical Minoxidil 5%, a derma roller, Foligain Trioxidil shampoo, and various supplements like zinc, selenium, magnesium, B6, B7, saw palmetto, and D3 + K2. The user is seeking finasteride but faces prescription challenges in Italy.

community Min/fin update and dandruff relief 🙏🏼🙏🏼🙏🏼

4 upvotes 1 month ago

The user experienced solid results with oral minoxidil and finasteride but had to stop topical minoxidil due to severe dandruff. They found relief using Equate dandruff shampoo with menthol selenium sulfate 1%, which helped control the dandruff and reduce hair shedding.

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