Can You Use Testimonials As Evidence of Efficacy?

Can you use a testimonial to justify a skin hydration claim for a collagen health supplement?

Do you need to prove your supplement hydrates the skin?

Proper trials to prove your claims cost a lot of money. And there’s no guarantee a trial is going to give you the results you want. So the obvious question is can you get away with just launching the product and using the feedback you get from your customers as evidence of your claims?

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