February 2026 in “Journal of Korea Society of Ingrielogy” This review discusses the potential immuno-regenerative effects of polydioxanone threads in hair loss treatment, focusing on tissue responses and immune modulation, but does not report clinical results.
December 2025 in “Zagazig University Medical Journal” This review discusses polydioxanone threads as a promising, minimally invasive treatment for androgenetic alopecia in both males and females, but notes that further research is needed to optimize protocols and outcomes.
January 2023 in “Al-Azhar International Medical Journal (Print)” This pilot study found that using polydioxanone monofilament threads for scalp stringing resulted in significant hair regrowth and increased hair density in male patients with vertex androgenetic alopecia (crown baldness) over six months, showing favorable and promising outcomes.
January 2021 in “Hair therapy & transplantation” This study reports encouraging results in treating androgenetic alopecia by combining injectable PRF and PDO thread insertion on the scalp.
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January 2025 in “PubMed” This study compared the effectiveness of different thread types in improving collagen profiles in UVB-exposed aging model rats, finding that PCL threads were more effective than PDO and PLLA in enhancing dermal collagen characteristics.