FURWEY 100g [ 6 Packs] Rechargeable Desiccant Packs for Storage, Color Indicating Silica Gel Desiccant Packets, Moisture absorbers for storage, Dehumidifier bag for Closets

https://a.co/d/0jeoOZ3A Get these bad boys and a container that has a decent seal. They are rechargeable, oven is best option, be careful if you use microwave they can overheat and melt, but yeah you only gotta buy em once so it's a no brainer investment to keep your fragrance from going bad. Also try to keep your fragrances in a cool place if possible.