February 2025 in “Brazilian Journal of Hair Health” This study reports that the candle flame technique "velaterapia," popular in Brazil for addressing split ends, can damage hair fibers due to bubble formation at high temperatures, despite thermal protectors providing some cuticle protection.
July 2023 in “Revista Ibero-Americana de Humanidades, Ciências e Educação” This study found that combining ultrasound with vacuum therapy showed promise in reducing cellulite and improving skin texture more effectively than individual treatments, albeit with mild, temporary side effects; ongoing research is needed to standardize protocols and understand the mechanisms involved.