: Periodically, Riot opens a personalized "Your Shop" with deep discounts (up to 70% off) on skins for champions you actually play. Rarity and Costs How to Buy Skins in League of Legends

: Sites like G2G and PlayerAuctions allow users to buy "skin gifts" or accounts from other players.

: The most secure method is buying RP within the LoL client using a credit card, PayPal, or prepaid cards.