I've never used a product with peptides before. What should I expect and is there anything I should do before using this mask? — Face Mask with Collagen, 30 g – DIZAO

Collagen peptides, as used in this mask, are small protein fragments that are formulated to sit on the skin's surface. Their primary role in skincare is to help improve the skin's feel of elasticity and suppleness, and contribute to a more even, refreshed appearance after use. If you are trying a peptide-based product for the first time, or if your skin is generally reactive, it is prudent to conduct a patch test. Apply a small amount of the serum from a corner of the unused mask packet (or a test piece of the fabric) to a discreet area like the inside of your forearm or behind your ear. Wait 24 hours to check for any signs of redness, itching, or irritation. Avoid using the mask on skin that is already irritated, sunburned, or has open wounds. As with any new cosmetic, discontinue use if discomfort occurs.