Loading...
200+ Scientific Studies
Monthlees Verified®
Get 63% off with Membership
4.9/5 | #1 Rated At-Cost Supplements
HydroxyFuel™
$28.59USD
| Member Price:
$10.59USD
63% off
Exogenous ketone support for clean energy, focus, and performance.
Monthlees HydroxyFuel™ is designed as a dietary aid to support the body's fat metabolism transition during intermittent fasting thereby promoting weight loss while supplying essential nutrients. Its formula integrates Calcium Citrate, MCT Powder, and BHB salts (Calcium BHB, Magnesium BHB, and Sodium BHB), aiming to facilitate a smooth transition to fasting, enhance energy levels, and support metabolic health. Ideal for daily intake as needed, this supplement provides a targeted approach to intermittent fasting support, ensuring your body receives the necessary components for optimal performance without relying on artificial additives.
Unlock member pricing: Save 63% with a Monthlees membership.
Try monthlees products for 30 days!
We stand 100% behind every product we make. Try monthlees supplements for 30 days and if you're not satisfied, contact our friendly support team at support@monthlees.com to discuss a refund, returns, & store credit options.
Third-Party Tested
GMP Certified
Non-GMO
FDA Compliant
Quality Guaranteed
Secure Checkout
Why Use HydroxyFuel™?
HydroxyFuel provides exogenous ketones that your body can use as an alternative energy source, supporting mental clarity and physical performance.
Provides alternative energy
Exogenous ketones can be used as an efficient energy source, supporting both mental and physical performance.
Supports mental clarity
Ketones are a preferred fuel for the brain, helping support cognitive function and mental focus.
Third-party tested quality
All ingredients are tested for purity and potency to ensure you get exactly what's on the label.
In One Serving of HydroxyFuel™
HydroxyFuel™ complements a healthy diet. It's easy to incorporate into any lifestyle or health regimen without overdoing it.
SERVING SIZE1 capsule
Calcium Citrate
MCT Powder
Calcium BHB
Magnesium BHB
Sodium BHB (β-Hydroxybutyric Acid)
FREE OF
- Artificial Sweeteners
- GMOs
- Gluten
DIET FRIENDLY
- Vegan
High-quality ingredients
Every serving of HydroxyFuel™ works to deliver comprehensive daily nutrition with ingredients that are carefully sourced for absorption, potency, and nutrient density.
Calcium Citrate
Provides bioavailable calcium to support normal nerve transmission and muscle function.
MCT Powder
Medium-chain triglycerides are rapidly absorbed fats that can be converted into ketones and used as a quick energy source.
Calcium BHB
A beta-hydroxybutyrate (BHB) salt that provides exogenous ketones plus calcium to support energy and electrolyte balance.
Magnesium BHB
Combines exogenous ketones with magnesium, supporting energy production, muscle function, and relaxation.
Essential mineral; research supports benefits for muscle function and relaxation.
Sodium BHB (β-Hydroxybutyric Acid)
Provides exogenous ketones bound to sodium, supporting fluid balance and ketone availability.
See The Difference
monthlees vs. The Competition
Why pay more for less? See how we stack up.
| Feature | monthlees | Retail Brands | Amazon |
|---|---|---|---|
| Price | Wholesale cost | 300-500% markup | 150-300% markup |
| Third-Party Testing | Sometimes | Rare | |
| Clinical Doses | |||
| Full Ingredient Transparency | |||
| Certificate of Analysis | |||
| Free Shipping Options | Prime Only | ||
| Member Savings | 50-70% | 0% | 10-20% |
| Cancel Anytime | N/A | N/A |
Price
monthlees
Wholesale costRetail
300-500% markupAmazon
150-300% markupThird-Party Testing
monthlees
Retail
SometimesAmazon
RareClinical Doses
monthlees
Retail
Amazon
Full Ingredient Transparency
monthlees
Retail
Amazon
Certificate of Analysis
monthlees
Retail
Amazon
Free Shipping Options
monthlees
Retail
Amazon
Prime OnlyMember Savings
monthlees
50-70%Retail
0%Amazon
10-20%Cancel Anytime
monthlees
Retail
N/AAmazon
N/ABased on industry research and publicly available data for mass-market supplements.
Exogenous ketone support for clean energy, focus, and performance.
Real Members, Real Savings
See why thousands of health-conscious & budget-conscious buyers trust Monthlees
Michael R.
Austin, TX
I was spending over $300/month on supplements from various brands. With Monthlees, I get the same quality — actually better, since everything is tested† — for less than half. My stack costs me $120 now.
Monthlees Plus Member
Sarah K.
Denver, CO
As someone deep into the longevity space, I appreciate that Monthlees only carries clinically-dosed products. No mystery ingredients. Just transparent, effective† supplements at fair prices.
Monthlees Core Member
David L.
Seattle, WA
I've tried every subscription box and DTC brand out there. Monthlees is different — it's like Costco for supplements. I'm saving 50%+ on my monthly† essentials without compromising on quality.
Monthlees Plus Member
Jennifer M.
Miami, FL
The transparency is what sold me. I can see exactly what's in each product, where it's sourced, and the testing results. Plus the savings are incredible.† My husband and I both use Monthlees now.
Monthlees Core Member
Chris T.
San Diego, CA
As a biohacker, I was skeptical because I'm used to paying an arm and a leg for supplements. But the quality is legit — these are premium formulas† at wholesale prices. The membership pays for itself in my first order every month.
Monthlees Plus Member
