Extended Potions

Ever wanted potions to make an actual difference?

What is this mod?

Brewing in vanilla Minecraft hits a wall almost immediately. One Redstone Dust or one Glowstone Dust, and that's it — your potion is done cooking, forever. Extended Potions knocks that wall down and lets you keep going.

Redstone and Glowstone can now be applied up to 5 times per potion on ten of the most useful potions in the game: Speed, Strength, Jump Boost, Regeneration, Instant Health, Fire Resistance, Slow Falling, Water Breathing, Night Vision and Invisibility. Stack them, mix them, push them to absurd lengths — and if you're feeling cruel, corrupt the whole thing with a Fermented Spider Eye and hand your "gift" to someone else.

How It Works

🧪 Stacking Redstone and Glowstone

Every applicable potion has a 5-modifier limit — but what you're allowed to put in those slots depends on the potion:

Speed, Strength, Jump Boost, Regeneration — accept either Redstone or Glowstone, in any mix, up to 5 total.
Instant Health — accepts Glowstone only, up to 5 times. Since Instant Health has no duration to begin with, only the +1 amplifier per application applies — stack all 5 on top of the base potion and you've got Instant Health VI.
Fire Resistance, Slow Falling, Water Breathing, Night Vision, Invisibility — accept Redstone only, up to 5 times.

The brewing stand doesn't care about your commitment issues, as long as you're offering the right dust.

Each addition recalculates the duration based on the potion's current duration — not the base — so effects compound with every dust you throw in. Amplifier increases from Glowstone stack too, on top of whatever duration math is happening, wherever duration applies.

📐 The Formulas

Let x = current duration, y = new duration after one application:

Modifier	Applies To	Formula
Redstone	All potions except Regeneration	`y = (x / 3) * 8`
Redstone	Regeneration only	`y = 2x`
Glowstone	All potions	`y = x / 2`, and +1 amplifier

Because these formulas run off the current duration each time, not the original base, stacking Redstone repeatedly compounds the extension rather than just multiplying the base once. Five Redstones in a row is not five times the base duration. It's much, much more.

☠️ Corruption

Speed, Strength, Jump Boost, Regeneration and Instant Health can be corrupted with a Fermented Spider Eye, turning them into their evil twins:

Original	Becomes
Speed	Slowness
Strength	Weakness
Jump Boost	Slowness
Regeneration	Poison
Instant Health	Instant Damage

Corruption can happen at any point in the modifier chain — before any Redstone or Glowstone has been added, in the middle, or after all 5 slots are filled. The moment the Fermented Spider Eye goes in, though, the potion's potency and duration are locked. Applied 3 modifiers and then corrupted it? Those last 2 slots are gone. No adding Redstone to a Splash Potion of Weakness after the fact. Plan your betrayals accordingly.

💰 Naturally Generated Potions

Loot chests don't reset the counter. A potion found in a dungeon, ancient city, or trial chamber that's already been extended or enhanced can still be pushed up to its own 5-modifier limit — meaning some of the most absurdly overtuned potions in the game are just sitting in chests, waiting to be topped off. Keep an eye out.

FAQ (Frequently Asked Questions)

Q: Will you backport this mod to older versions? A: Will you update your game? See how pointless that question was?

Q: Can you port this to another modloader? A: No.

Q: Which mods is Extended Potions compatible with? A: I have a life so I didn't test it. If you find a conflict, please report it through comments.

Q: What can I do with this mod? A: Everything.

Q: Where do I report a bug? A: Do I look like I have a GitHub page? That's why the comments exist.

Made with unmatched perspicacity, sheer indefatigability, and a superiority complex that had to be fulfilled.