Do glueless straight wig have any drawbacks?

The glueless straight wig has the following disadvantages:
Material issues
Mixed use of animal hair: Some products bleach animal hair (such as rabbit hair and wool) and pretend to be human hair. The surface scale structure of this type of hair is different from human hair, and it is prone to tangling and static electricity. Long term use may cause scalp allergies or itching. ‌
Recycled hair filling: Low priced products often use unsterilized materials such as haircuts from hair salons and surgical waste, which can cause dry and broken hair, residual glue or chemicals at the roots, and pose health risks when in direct contact with the skin. ‌
Process defects
Rough woven hair net: The mesh is coarse and the structure is loose, making it easy to appear fake when worn, and the edges are rough and prone to pricking the scalp. ‌
Excessive formaldehyde: Tests have shown that some products have formaldehyde levels exceeding the national standard limit (such as 22.6mg/kg). Long term exposure may induce dermatitis, respiratory inflammation, and even increase the risk of cancer. ‌
Microbial contamination: The total number of bacterial colonies exceeds the standard by 3-5 times, and harmful bacteria such as Escherichia coli and Staphylococcus aureus are detected, which may cause folliculitis. ‌
Wearing experience
Poor breathability: Poor quality adhesive mesh bottom has extremely poor breathability, and sweat mixing can easily clog hair follicles, exacerbating scalp discomfort. ‌
Obvious odor: When newly opened, it emits a pungent chemical or acidic odor, and some products have chemical residues of industrial adhesives (such as urea formaldehyde resin adhesive). ‌
It is recommended to prioritize selecting handmade customized products from reputable brands and pay attention to reviewing product quality inspection reports and material specifications.