Board Thread:Skyrim/@comment-11368684-20130628220606/@comment-26482934-20150702090622

If you use a Falmer helm + circlet combo (which you could argue is not an exploit since the developers made to attempts to fix it and it persisted between patches), it's possible to go up to +35 Alchemy Gear. (that includes Ahzidal set, Seeker of Sorcey, it doesn't include: Necromage)