Hello 👋
Detailed history and examination along with pictures are needed for further evaluation and management
Depending on site and severity of condition treatment can be started accordingly
Hair thinning and hair fall can be due to various causes like stress, genetics, harmonal changes, dandruff , nutritional deficiencies
only shampoos alone won't help for hair growth , additional medications and test are needed
Next Steps
do contact online Dermatologist for better cosmetic results