I loved it when she stressed on how Mink can meet women's fascination toward colours. But colour was not the only factor that influences our purchasing decision: it also has a lot to do with safety, effects and brand trustworthiness. But, maybe because I'm 26 and not who she's targeting.
Off the top of head: How long will a self-printed piece last/expire? How often should I change the bases in order to make fresh batches? If not too often, will Mink really save me $? Is the base FDA proved?