Can you recommend some skin ampoules? I'm having trouble deciding.

The world of ampoules is truly endless. I recently went to Maypure and was advised to diligently practice home care, so I'm shopping now. But there are so many options, it's hard to choose. I'm debating whether to stick with a hydrating product, or if I'm already using one, should I buy the recommended vitamin-packed skin ampoule?

A friend recommended a list of skin ampoules, and the ingredients were all so varied that it was a headache. Could you recommend a skin ampoule that you have on your vanity right now and reach for most often? I'd love something that combats dryness without flaking, but it doesn't have to be expensive, so please share your honest review!