The product is spelled AlkaMelt, while this review site's address is alkkamelt.com with a doubled k.
A near-miss spelling is how lookalike sites are built, so a mismatch deserves a pause. Here the site is an independent guide that earns affiliate commissions, and orders go through links to the official store.
Do not type payment details just because the name looks right. Check the checkout address and seller name, and keep your confirmation email.