September 2025 in “International Journal for Research in Applied Science and Engineering Technology” This paper discusses the potential benefits of incorporating guava leaf extracts into skincare, hair care, and oral care products, highlighting their antibacterial, antioxidant, and acne-treating properties, as well as their possible effects on dandruff removal and hair loss reduction.
May 2026 in “Archives of Dermatological Research” In this study, serum levels of vitamin C, vitamin E, and total antioxidant capacity did not differ significantly between individuals with premature greying hair and controls, but a strong association with family history was observed.
August 2026 in “Zenodo (CERN European Organization for Nuclear Research)” In this N=1 case study, a long-term zero-carbohydrate diet adult male experienced an increase in fasting plasma ascorbic acid from 0.1 mg/dL to 2.0 mg/dL within two months of daily 1 g vitamin C supplementation, along with subjective health improvements.
August 2026 in “Zenodo (CERN European Organization for Nuclear Research)” In this N=1 case study, researchers observed that a 1 g daily dose of vitamin C successfully elevated plasma vitamin C levels in an adult male following a zero-carbohydrate diet, with reported improvements in some health parameters but no gastrointestinal side effects.
November 2023 in “Dermatologic therapy” The scalp serum reduced scalp discomfort and symptoms without affecting skin moisture loss.