Performance
Steel Fuel®
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Pre-Workout Performance Formula
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Enhanced with 1000 IU of Vitamin D
30 servings · $1.17 per serving
**Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value (DV) not established.
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The SteelFit Difference
Plus 5 g of German-made Creapure® creatine and 1,000 IU of vitamin D3 for a more complete formula supporting strength, lean muscle, recovery, and muscle function.*
Formulated with 5g of Creapure® Creatine Monohydrate to boost power and strength, 3g of myHMB® to reduce muscle breakdown and support lean muscle growth, and 1,000 IU of Vitamin D3 to enhance muscle function and overall wellbeing.*
In a 3-week clinical study, athletes taking creatine + HMB gained 67% more lean body mass than those taking creatine or HMB alone — and the gains in strength stacked additively. That's why we put full doses of both in one scoop.*
One scoop, once a day. No complicated timing or cycling. Just consistent results.*
What's inside
Every key ingredient and the job it does.
Creapure® is a premium, ultra-pure form of creatine monohydrate made in Germany under strict quality standards. It supports your body’s natural energy system by increasing phosphocreatine stores in the muscles, which helps regenerate ATP for improved strength, endurance, and recovery. Backed by extensive research, Creapure® enhances power output, promotes lean muscle growth, and fuels peak athletic performance.
myHMB® is a clinically researched metabolite of the amino acid leucine that plays a key role in building and preserving lean muscle. It helps reduce muscle protein breakdown while supporting protein synthesis through the mTOR pathway, allowing your body to recover faster and maintain strength even during intense training or calorie deficits. This makes it a powerful tool for improving performance and supporting long-term muscle development.
Vitamin D3 helps your body absorb and regulate calcium and phosphorus, which are essential for strong and healthy bones. It also supports muscle function, helps reduce the risk of injury, and promotes better recovery from training. Maintaining optimal vitamin D levels can support overall performance and strength.
A note from Rob
We created this formula for athletes and everyday lifters who want to build lean muscle, push through plateaus, and recover faster without overcomplicating their stack. Creatine and HMB are a gold-standard combo. Backed by science, trusted by pros, and now available in one scoop.
Creatine boosts strength and power. HMB helps protect muscles from breakdown and supports recovery. Vitamin D supports strength, recovery, and bone health. Together, they form a complete performance stack.*
This formula is for anyone who wants to train harder, recover faster, and see real results. Whether you’re lifting in the gym, running, cycling, playing sports, or just staying active, Creatine + HMB gives you the edge. From beginners to experienced athletes to busy parents looking to stay strong, everyone can benefit from better performance and recovery.*
Yes! Creatine and HMB are two of the most researched performance ingredients, and vitamin D is essential for health. When taken as directed, this stack is safe for long-term use.*
Most people feel strength and endurance benefits from creatine within 2–4 weeks. HMB and vitamin D provide ongoing recovery and performance support.*
For best results, take your serving 30–60 minutes before workouts. This is when HMB peaks in your system and helps reduce muscle breakdown during training. On rest days, timing is less important, just take it with a meal.
Creatine and HMB naturally have a slightly bitter taste. We kept the formula clean and effective, so you may notice it. Mixing with your favorite flavored beverage makes it much smoother.
Some people may experience mild stomach discomfort when first starting creatine or HMB, especially on an empty stomach. To minimize this, take it with food or mix it into a flavored drink. Most users tolerate it well once their body adjusts.
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