Supplementary Material for: Case Report - Hair Shaft Normalization and Hair Growth in SPINK5-Syndromic Epidermal Differentiation Disorder (Netherton Syndrome) While on Treatment with Dupilumab: A Novel Therapeutic Approach for Trichorrhexis Invaginata

The user discusses their experience with diffuse unpatterned alopecia and acquired progressive hair kinkering, noting improvements with treatments including biotin, pantothenic acid, finasteride, ketoconazole, and zinc pyrithione shampoo. They report thicker, healthier hair and improved scalp condition, attributing success mainly to biotin, pantothenic acid, and finasteride.

A 27-year-old male with diffuse hair loss, including the donor area, did not respond to finasteride, dutasteride, or minoxidil. He suspects his hair loss may be linked to a mild connective tissue disorder, possibly affecting the structural support of hair follicles, rather than being purely hormonal.

The user is experiencing diffuse thinning and inflammation despite using 2.5mg dutasteride daily, ciclopirox, and ketoconazole shampoos. They are considering treatments like hydroxychloroquine and JAK inhibitors due to suspected scarring alopecia and have faced challenges in obtaining a scalp biopsy.

Hair loss treatments discussed include microneedling, minoxidil, tretinoin, finasteride, dutasteride, pumpkin seeds, saw palmetto, and scalp massage. The consensus is that finasteride or dutasteride is necessary for significant regrowth, while other methods may only slow hair loss.

Scalp biopsies are crucial for diagnosing hair loss conditions like Diffuse Unpatterned Alopecia (DUPA) and retrograde hair loss, as treatments like finasteride and dutasteride may not be effective if other conditions are present. Combining PPAR-GAMMA agonists with retinoids could improve treatments for conditions like Lichen Planopilaris.

The user diagnosed with DUPA tried treatments like dutasteride, finasteride, RU58841, and minoxidil without success and is considering a hair system. They hope for a future cure, possibly with PP405, and others suggest options like scalp biopsy and SMP.