Case Series of Selenium Toxicity from a Nutritional Supplement

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.

Zinc supplementation caused significant hair shedding for the user, who had been successfully managing hair loss with finasteride, minoxidil, RU58841, and microneedling. The user discontinued zinc after noticing no libido increase and believes the hair loss was due to zinc's interaction with other minerals or hormonal changes.

Micronutrient testing and deficiencies related to hair loss, particularly androgenetic alopecia (AGA). Discussion includes the impact of iron, selenium, zinc, copper, folate, B12, vitamin E, vitamin D, amino acids, and fatty acids, alongside treatments like dutasteride or finasteride.

Sulfur soap may help with hair thickening and reducing scalp inflammation, but it can cause dryness. Nizoral, containing ketoconazole, is noted for its potential to reduce seborrheic dermatitis but may also cause scalp dryness and hair loss.

A 36-year-old man with androgenetic alopecia suspects copper and zinc deficiencies may be accelerating hair loss and is supplementing copper to address this. He is also monitoring blood sugar levels due to previous prediabetes concerns and plans to test for insulin resistance.

The conversation discusses the safety and use of ketoconazole shampoo for hair loss, with mentions of zinc pyrithione and selenium sulfide. Users debate the safety of these ingredients, particularly zinc pyrithione, and share opinions on regulatory differences between Europe and the US.