How the guides are made
Every guide starts from primary sources: the brand's own instructions and ingredient lists, the official product listing, and the dermatology or regulatory source behind any safety advice. Product facts such as cure times, sizes and HEMA statements are quoted as each brand publishes them, with the date they were checked, and prices refresh daily from Amazon's product data.
The guides are written for two readers at once: the person doing their own nails at a kitchen table with a single lamp and a single bottle, and the newer tech who wants the reasoning behind each step rather than a list of rules. If an article ever contradicts what your product's own instructions say, follow the bottle, and let us know so the page can be checked against the current formula.
When a formula changes or a product is discontinued, the affected page is revised and its “Updated” date changes. Read the full editorial standards for how sources, affiliate links and corrections are handled.