University of São Paulo: Turmeric, banana peel and activated charcoal are ineffective for tooth whitening, study proves
A study carried out by researchers from the USP School of Dentistry of Ribeirão Preto (Forp) provides scientific evidence that products such as turmeric, banana peel and activated charcoal, indicated on the internet as homemade options for tooth whit
Source: indiaeducationdiary.in