Our lens scratch remover contains sodium hydroxide and disodium EDTA. It can quickly remove stains on the glasses， maintain the lenses， and restore the clarity of the glasses. The way to use it is very simple: first spray the cleaning solution on the lens， and then wipe it with the glasses cloth. After use， it can effectively remove the oil on the lens and dust on the nose holder of the lens frame， so that the whole glasses look new and make the vision clearer. Please kindly note:🚚 Fast ShippingThis product ships from our U.S. warehouse via UPS (FedEx as backup). We aim to deliver your order quickly and reliably. 📦 No Return AcceptedThis is a single-use consumable product. Once opened and applied, it cannot be returned, reused, or restocked. Therefore, we do not accept returns under any circumstances. 🔍 Order CarefullyPlease read the product description thoroughly before purchase. Make sure it fits your intended use. We recommend placing orders cautiously. 💰 Promotional OfferThis product is currently on promotion at near cost price, with special deals for bulk purchases. Please check the promotion details on the listing page to save more.