That didn’t happen to the other testers, so we’ll chalk it up to my face shape. I’ve had to do this before with other sheet masks, so I wouldn’t consider it a dealbreaker.

An overnight collagen mask ($10.39 $15.99). And during Amazon Prime Day 2025, running from July 8 through 11, a handful of top picks from our favorite K-beauty brands are discounted at the e-tailer.

- Squeeze the lemon slice into the mixture and stir. - Apply the mask evenly on your face and neck. - Leave on for 20 minutes, then rinse off with lukewarm water.

Recently, I've been seeing an overnight collagen face mask, the Biodance Bio-Collagen Real Deep Mask ($13, originally $19) for four, all over my social media feeds — both TikTok and Instagram alike.