1, don't be greedy for petty gain.
2. Identify the components of the mask
Usually, the components behind preservatives, such as carbomer (polyacrylic acid crosslinked resin) and sodium hyaluronate, are less than 65438 0%, which can be basically ignored. The more active ingredients in front, the more attention should be paid.
Step 3 watch "whitening"
If the mask is irradiated with ultraviolet light, if there is strong blue-white fluorescence similar to that of irradiated copy paper, it can basically be considered that a fluorescent agent is intentionally added;
4. Stay away from stimuli and quick-acting ingredients
Buy masks to avoid irritating ingredients, such as some high-concentration exfoliating products, sterilization products, rapid whitening products and so on.
If you want to whiten, you can choose diet therapy. Although the effect is slow, it can ensure that our skin will not be harmed, so 100% can choose hormone mask.