May 2026 in “Revista Iluminart” In this study, researchers found that adding coffee grounds to neutral shampoo, a popular DIY trend, resulted in peak caffeine extraction after seven days, with concentrations surpassing those in commercial products, suggesting educational potential for chemistry classes.
January 2023 in “Fashion and textiles” This study found that hair dyed with anionic basic hair dye lost more color after shampooing compared to cationic and nonionic dyes, with alkaline shampoo increasing this effect.
September 2019 in “International journal of research in ayurveda and pharmacy” In this case report, the use of oral Bhringraj Vati, coconut hair oil, and neutral shampoo treatment improved hair fall and overall hair condition in a 28-year-old female patient, showing safety and effectiveness against symptoms like scalp itching and hair thinning.
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January 2021 in “Skin appendage disorders” This review discusses the complex causes of trichodynia and reports no clinical results; the authors call for more research into neural and immune interactions in scalp conditions.
December 2025 in “Zenodo (CERN European Organization for Nuclear Research)” In this study, researchers developed a natural herbal shampoo using extracts from plants like amla and aloe vera, demonstrating effective hair and scalp cleansing, good foaming capacity, and eco-friendliness, aligning with consumer demand for sustainable personal care products.