Imperial Nutrition Excelsior vs Kj Labs Doomsday Comparison
See a side-by-side comparison of ingredients, stats, and community sentiment.
Imperial Nutrition Excelsior is a legendary, highly popular extreme pre-workout known for its intense focus, while KJ Labs Doomsday offers a potent 400mg caffeine dose with a specific blend of DMHA and DMBA.
Go with Imperial Nutrition Excelsior if...
- •You want a legendary 'GOAT' status pre-workout with massive community backing
- •Intense focus and 'locked in' concentration are your top priorities
- •You are looking for significant strength and performance gains
Out of Stock
Go with Kj Labs Doomsday if...
- •You prefer a high-caffeine formula with 400mg per serving
- •You are looking for a specific stimulant blend featuring DMHA and DMBA
- •You want a potent stimulant experience that hits hard for experienced users
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Imperial Nutrition Excelsior
imperial nutrition

Kj Labs Doomsday
kj labs
Compare
Imperial Nutrition Excelsior
Kj Labs Doomsday
Stimulants
Total Caffeine
Not specified
400 mg
Exotic Stimulants
Contains Yohimbe
Community
Community Approval
77%
89%
Total Mentions
173
37
Where to Buy Imperial Nutrition Excelsior
Ruesco
Ships from:🇺🇸 United States
$15.00
Out of Stock
Updated Just updated
Cross The Limits
Ships from:🇬🇧 United Kingdom
£93.59
out_of_stock
Updated 3d ago
Where to Buy Kj Labs Doomsday
NutriCartel
Ships from:🇺🇸 United States
$49.95
In Stock
Updated 204d ago
Get 15% off your order
Ruesco
Ships from:🇺🇸 United States
$3.00
In Stock
Updated Just updated
Caffeine
N/A
Exotic Stims
Yes
Contains Yohimbe
No
Community Approval
77%
Mentions
173
Caffeine
400 mg
Exotic Stims
Yes
Contains Yohimbe
No
Community Approval
89%
Mentions
37
Where to Buy Imperial Nutrition Excelsior
Ruesco
Ships from:🇺🇸 United States
$15.00
Out of Stock
Updated Just updated
Cross The Limits
Ships from:🇬🇧 United Kingdom
£93.59
out_of_stock
Updated 3d ago
Where to Buy Kj Labs Doomsday
NutriCartel
Ships from:🇺🇸 United States
$49.95
In Stock
Updated 204d ago
Get 15% off your order
Ruesco
Ships from:🇺🇸 United States
$3.00
In Stock
Updated Just updated
Ingredient Label
Ingredient Label
Pros
- Excelsior delivers an instant hit of energy, described by users as 'rocket fuel' and a 'solid hitter'.
- Many users praise its ability to provide intense focus and concentration during workouts, allowing them to feel 'locked in' for extended periods.
- It has been historically regarded as a top-tier pre-workout, with some calling it 'the GOAT'.
- Users report increased strength and performance, such as lifting heavier weights and crushing workouts.
Cons
- A drawback of Excelsior is that it is excluded from any promotions or sales.
- Some users report inconsistencies between batches, leading to 'hit or miss' experiences where it may not work effectively.
- There are reports of a negative comedown or crash after the effects wear off, with users feeling a lack of motivation.
- One user mentioned that 'something turn up on blood tests' after taking Excelsior, though details are vague.
Pros
- Doomsday delivers a powerful and effective stimulant experience, with some users describing it as "fucking fire."
- It is recognized for its potent blend of stimulants, including DMHA and DMBA, appealing to those seeking strong effects.
- Users report good training sessions and a unique, specific feeling from the original formula.
- It is considered effective and "hits" well by experienced users.
Cons
- A drawback of Doomsday is that its formula has reportedly changed over time, leading to a perceived decrease in quality and effectiveness in newer versions.
- Some users have experienced a milder effect than anticipated, followed by post-workout crash and anxiety.
- Flavor is described as only "Ok," and the overall experience may not always live up to the bold claims or user expectations, with some effects like euphoria/focus being mild.
Comparison Summary
Imperial Nutrition Excelsior is a widely discussed extreme pre-workout focused on intense focus and performance, whereas KJ Labs Doomsday provides a high-caffeine stimulant experience featuring DMHA and DMBA. Excelsior is aimed at those seeking a legendary, high-energy hitter, while Doomsday targets experienced users who prioritize specific exotic stimulant profiles.
Key Differences:
- Caffeine Content: Imperial Nutrition Excelsior (Not specified) vs Kj Labs Doomsday (400mg)
- Popularity and Recognition: Imperial Nutrition Excelsior (High community presence with 168 mentions and a 'legendary' reputation) vs Kj Labs Doomsday (Lower community presence with 37 mentions)
- Primary User Benefits: Imperial Nutrition Excelsior (Focus, concentration, and 'rocket fuel' energy) vs Kj Labs Doomsday (Potent stimulant 'hit' and effective training sessions)
Key Similarities:
- Product Intensity: Both products are categorized as 'Extreme' level supplements containing exotic stimulants.
- Post-Workout Effects: Users of both supplements have reported experiencing a crash or comedown after the effects wear off.
- User Sentiment: Both products have fair to high user sentiment.
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