MET countered attempts to discredit it by coming out with a full page ad that left no doubt about its origin. It included a certification from MET's Japanese supplier, as well as a clarificatory statement that further confirmed MET's authenticity.

When the issue of substandard glutathione supplements broke out, MET TATHIONE came up with a full-page print ad reassuring consumers of its potency and premium quality.

The latest effort featured the numerous celebrity endorsers of MET supplement and their desire to use only premium-grade reduced glutathione.

It was followed by an ad that emphasized the premium qualities of MET Supplement.

The MET Supplement ad campaign began with a print ad featuring popular TV personality and wellness icon, Ms. Cory Quirino.