As of mid-2021, going from Alchemy 1 to 50 typically costs between , depending on Bazaar fluctuations. You can recoup some of this by selling the Tier 3 potions back to NPCs, though the return is minimal compared to the initial investment.
Approximately 846 Enchanted Sugar Cane.
Reaching in Hypixel Skyblock (as of 2021 standards) requires approximately 55,172,425 total XP . To calculate your exact needs, use the Alchemy XP calculation formula: alchemy xp calculator hypixel skyblock 2021