Most are made from tempered glass. Some use a liquid-glass formula—silica dioxide (SiO2)—that bonds to the device glass to increase strength.
Most listings state these protectors preserve touchscreen responsiveness. Some liquid or wipe-on options explicitly note compatibility with fingerprint readers or sensors, so check the product details if you rely on biometric unlock.
Tempered glass protectors are often described as shatter-safe—designed not to break into sharp pieces. Liquid-glass options usually say they strengthen the screen but do not make it completely shatter-proof.
Listings show several thickness values (for example 0.30 mm / 0.3 mm, 0.1 mm, and values shown in inches) and many state a 9H hardness rating. Check each product’s specification section for exact thickness and unit conversions.
