Hydrogel face masks keep taking over TikTok feeds, and a new 2026 study put the viral skincare trend to the test on sensitive and allergy-prone skin. Here’s what researchers found about whether the mask lives up to the hype. What Does the New Hydrogel Mask Study Reveal About Sensitive Skin? The six-week study found that repeated use of a hydrogel mask improved skin hydration and firmness in people with sensitive skin, without triggering irritation. Researchers also reported no measurable changes to the skin barrier, sebum levels or pH after regular use. The investigation fo...