Smirk Tooth Powder takes 30 days to achieve full whitening benefits, not “moments” as it claims, the UK Advertising Standards Authority determined in a review of Smiles Powder UK Ltd.'s advertising.
UK Regulator Wipes Smirk Off Smiles Powder's Fast-Whitening Claims
Smile Powder UK advised to modify website claims suggesting Smirk Tooth Powder could provide whitening benefits "moments" after use, UK Advertising Standards Authority says.
