December 2025 in “The American Journal of Interdisciplinary Innovations and Research” This study operationalizes a four-step workflow for selecting donor hair for capsule extensions, translating surgical trichology insights into an extension-specific protocol to enhance natural hair optics and biomechanics, suitable for premium extension services.
February 2024 in “Universal Library of Innovative Research and Studies” In this study, researchers found that the primary cause of slippage and detachment of keratin capsules in hair extensions is the re-contamination by oily residues from the hairdresser's hands, rather than the use of hair care products like masks or conditioners.
11 citations
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January 1999 in “Dermatologic Surgery” The researchers reported that using extenders during scalp reductions increased effectiveness by 30 to 86% and prevented "stretch-back" in subsequent procedures.
February 2026 in “Journal of Craniofacial Surgery Open” This narrative review outlines the biological costs of hair extensions, such as traction leading to hair loss and scalp issues, and suggests a prevention-focused model involving risk assessment, surveillance, and tiered therapies to minimize alopecia risk and maintain scalp health.
59 citations
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August 2010 in “Journal of The American Academy of Dermatology” This study observed that certain hair care practices, such as wearing cornrows and using hair extensions, were strongly associated with the development of traction alopecia and seborrheic dermatitis in African American girls.
