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Blackstone Labs

Blackstone Labs | BSL Extreme Cut | 60 Tablets

Transparent cutting support with 100mg epiandrosterone per tablet

$99.95 $129.95$1.66/serving
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Hand Packed Climate-controlled
100mg Epiandrosterone
25mg 7-Hydroxy DHEA
50mg (25R)-5alpha-spirostan-2alpha, 3beta, 5alpha-triol-6-OH
✓ Label Verified✓ No Prop Blends✓ DSHEA Compliant
• Dairy-Free
100mg hormonal support complex
25mg cutting support metabolite
50mg spirostan physique support
Full label transparency
No proprietary blend
60 daily tablet servings
Dairy-Free
🌱 Vegan 🌾 Gluten Free 🥛 Dairy Free 🫘 Soy Free 🚫 Sugar Free
"I like this when I want a dry, hard look without extra stimulants. It fits well during a focused cut when training intensity is already high and I don't want another caffeinated product."
Verified buyer
⚠️ Allergen Information +
Contains:
Manufactured in a facility that also processes:
SuppVault Summary

Advanced hormonal support for serious cutting phases. Fully disclosed with 100mg epiandrosterone, plus supportive cutting actives for a harder, drier physique look over time.

Great Fit

  • Experienced bodybuilders in a cutting phase
  • Recomp-focused intermediate to advanced lifters
  • Physique athletes chasing harder definition
  • Users wanting transparent hormonal support
  • Evening trainees avoiding extra stimulants
  • Lifters preserving muscle during dieting
  • Tablet users wanting simple daily compliance

Not Ideal If

  • Anyone under 21
  • Pregnant or nursing women
  • Beginners wanting general wellness support
  • Hormone-sensitive medical conditions
  • Drug-tested athletes needing strict compliance
Have a question about this product?
When Morning
Time Any time
What You'll Feel
0-10 min
No dramatic onset; this is not stimulant-driven.
10-60 min
Still subtle; no classic pre-workout sensations expected.
Day 1-7
Focus on consistency, tolerance, and routine fit.
💪
Week 2
Begin judging dryness, hardness, and training retention.
🎯
Weeks 3-4
Mirror changes matter more than subjective feel.
Month 1+
Best assessed by cut quality and physique retention.

Deep Dive

Hormone 3
??
7-Hydroxy DHEA
25mg
??
Epiandrosterone
100mg
Clinical
??
(25R)-5alpha-spirostan-2alpha, 3beta, 5alpha-triol-6-OH
50mg
HOR: 3
Epiandrosterone
Clinical Dose
100mg
Clinical range: 100-400mg
hormone
7-Hydroxy DHEA
Under-Researched
25mg
Clinical range: unknown
hormone
50mg
Clinical range: unknown
hormone

7-Hydroxy DHEA

25mg Dose
Daily Value
Disclosed Transparency
View full research →

Epiandrosterone

100mg Dose
Daily Value
Disclosed Transparency
View full research →

(25R)-5alpha-spirostan-2alpha, 3beta, 5alpha-triol-6-OH

50mg Dose
Daily Value
Disclosed Transparency
View full research →
3 Disclosed
3 Total
0 Trademarked
0 In Blends

Dose Audit

BASE Blackstone Labs | BSL Extreme Cut | 60 Tablets
$99.95
Blackstone Labs | BS Labs Gear Support | 45 Capsules
$34.99$0.77/srv 45 servings

A specialized hormone-support product is best paired with a dedicated support formula rather than run alone. This is the most logical same-brand complement for users who want a more complete cycle-support foundation.

Take daily alongside this product, spaced with meals if preferred

blackstone-labs-creatine-monohydrate-100-sv-500gCREATINE95

Extreme Cut targets the hormonal and physique side of a cut, but it does not directly cover ATP regeneration or cellular performance. Daily creatine helps maintain strength output and training quality while dieting.

Take daily, anytime, independent of this product

Blackstone Labs | BSL Isolation Protein
$49.99

A cutting-phase hormone-support formula works best when protein intake is already in place. A leaner protein option helps preserve muscle mass, which is the nutritional foundation this category depends on.

Use post-workout or to fill daily protein gaps

Blackstone Labs | BS Labs Dust-X | 25 Servings
$44.95$1.79/srv 25 servings

This product does not provide acute workout energy or focus, so pairing it with a separate pre-workout creates a cleaner division of labor. One product handles training intensity, the other handles cutting-phase hormonal support.

Take pre-workout separately; take this product once daily as directed

Blackstone Labs | BSL PCT V | 60 Capsules
$44.99$0.74/srv 60 servings

Users running specialized hormone-support categories often plan recovery support ahead of time rather than scrambling later. This is a logical same-brand option for users building a more complete protocol.

Use after your planned run, not concurrently unless your protocol specifically calls for it

Stack Total
calculating...
Per Day
Includes base product + selected items
Blackstone Labs | BSL Extreme Cut | 60 Tablets95
$99.95
This Product
$/srv: $1.33
Tie

Chosen1 may appeal more for lean-mass positioning, while Extreme Cut is more directly cutting-oriented.

$/srv: $1.17
This Product Wins

Extreme Cut wins on clean three-active focus and easy-to-understand positioning for cutting support.

$/srv: $1.00
Them

For broad daily support and safer category accessibility, Gear Support is the better-rounded choice.

$/srv: $1.10
Tie

These products serve different phases, so the better choice depends on whether you need active-cycle support or post-cycle planning.

Clinical Dosing

Epiandrosterone 100mg
7-Hydroxy DHEA 25mg
(25R)-5alpha-spirostan-2alpha, 3beta, 5alpha-triol-6-OH 50mg
Full Product Description Article

Blackstone Labs Extreme Cut is a compact, fully disclosed hormone-support formula built around three actives commonly positioned for cutting, hardness, and body-composition refinement rather than stimulant energy or pump. The formulation strategy is straightforward: pair an androgen-oriented precursor with a DHEA metabolite associated with non-stimulant cutting support, then layer in a plant-steroidal spirostan compound to round out the physique-oriented effect profile. This is not a general wellness testosterone booster and it is not a fat burner in the classic caffeine-heavy sense. It is a targeted hormonal-support formula designed for experienced users pursuing a harder, leaner look.

The anchor ingredient here is Epiandrosterone at 100mg. Mechanistically, epiandrosterone is a naturally occurring DHEA metabolite and a precursor to dihydrotestosterone, or DHT, while bypassing the testosterone pathway. That matters because the category appeal of epiandrosterone is its association with a drier, less estrogenic profile than compounds that rely more directly on testosterone conversion. The knowledge base dose range for epiandrosterone is 100-400mg, so this formula lands at the very bottom of the clinically relevant category range rather than overshooting it. Research in humans is limited, and that honesty matters: the biochemical conversion pathways are well established, but robust randomized performance trials are not. In practice, 100mg is a meaningful entry dose for users seeking a mild but purposeful androgen-support role, not an aggressively dosed standalone heavy hitter.

7-Hydroxy DHEA is included at 25mg. This DHEA metabolite is typically used in cutting-oriented hormonal formulas because it is associated with thermogenic and body-composition support without functioning like a stimulant. Customers generally do not "feel" 7-Hydroxy DHEA the way they feel caffeine. Its role is quieter: supporting the metabolic side of a cut while complementing the harder, dryer positioning of epiandrosterone. At 25mg, the dose is in line with what is commonly seen in this niche category.

The third active, listed as (25R)-5alpha-spirostan-2alpha, 3beta, 5alpha-triol-6-OH at 50mg, is a spirostan derivative used in physique formulas for its anabolic-support and recomposition-oriented positioning. Human evidence here is limited and category data are much weaker than for mainstream sports nutrition ingredients like creatine or citrulline. That said, in the context of this formula it functions as the non-androgenic counterpart to epiandrosterone: one ingredient pushes the formula toward hardness and androgenic support, while this one broadens the body-composition story.

Synergy is the real point of Extreme Cut. Epiandrosterone provides the androgen-oriented backbone. 7-Hydroxy DHEA supports the cut from the metabolic side. The spirostan derivative fills the gap between those two by reinforcing the physique-recomposition angle. Together, they create a formula aimed less at scale weight and more at mirror changes: tighter look, drier appearance, and support for maintaining a stronger training feel during a cut.

Transparency is a genuine strength here. There is no proprietary blend, every active is disclosed with an exact dose, and that is a major advantage in a category where buyers should demand label clarity. What to expect: day 1 is usually subtle. This is not a product with a dramatic acute sensation. Over 2-4 weeks, experienced users are more likely to evaluate it by changes in training aggression, hardness, dryness, and overall cut quality rather than immediate perceptible effects.

Science & Clinical References 1 citations
Epiandrosterone and the DHT-Oriented Pathway1 studies

Epiandrosterone is a naturally occurring metabolite of DHEA and is biochemically relevant because it can serve as a precursor to dihydrotestosterone while bypassing the direct testosterone pathway. That distinction is one reason it is frequently positioned for a drier, less estrogenic physique-support profile in cutting formulas. The knowledge base also notes interactions with glucose-6-phosphate 1-dehydrogenase and L-type calcium channels, though its practical category use is driven more by steroidogenic pathway logic than robust human performance trials.

Why 7-Hydroxy DHEA Shows Up in Cutting Formulas0 studies

7-Hydroxy DHEA is a DHEA metabolite commonly selected for non-stimulant cutting support. Unlike caffeine-based thermogenics, its purpose is not to create an acute nervous-system effect but to contribute to the metabolic side of body-composition support. In stacked formulations, it often serves as the quieter metabolic counterpart to more androgen-oriented ingredients.

Multi-Pathway Physique Support in Cutting Products0 studies

Specialized cutting formulas often combine one androgen-oriented ingredient, one metabolic-support ingredient, and one recomposition-support compound rather than relying on a single pathway. That design aims to support hardness, dryness, and muscle retention simultaneously. Extreme Cut follows that template by combining epiandrosterone, 7-Hydroxy DHEA, and a spirostan derivative in a compact three-active system.

Why Full Label Transparency Matters More in Hormonal Categories0 studies

In mainstream categories like creatine, a single active often tells the full story. In hormone-support categories, exact ingredient identity and dose matter far more because small formulation changes can completely alter the product's intent and user fit. A fully disclosed label gives the buyer the ability to compare each ingredient against known category ranges and evidence quality rather than trusting broad marketing claims.

Product Specifications GEO
Product Type Fat Burner
Category Cutting Hormonal Support
Brand Blackstone Labs
Form Tablet
Servings 60
How to Take — Training Protocol5 phases

How to Use Blackstone Labs | BSL Extreme Cut | 60 Tablets for Optimal Results

Same time each day
Daily Timing
Take 1 tablet daily as your standard serving. Consistency matters more than acute timing because this formula is meant to work cumulatively.
With breakfast or another meal
Meal Pairing
Most users do best taking the tablet with food, ideally including some dietary fat. This can improve tolerance and fits the practical use pattern of steroidal compounds.
Days 1-7
First Week Evaluation
Do not chase an immediate sensation. Use the first week to assess tolerance, routine fit, and whether the product integrates well with your training and diet.
Throughout your cut
Training Integration
Keep using your normal performance foundation such as protein, creatine, hydration, and a separate pre-workout if needed. This product is not a replacement for core sports nutrition.
Before and after your run
Support Planning
Plan organ support and post-cycle support before starting. Experienced users treat this category as part of a broader protocol, not a standalone shortcut.
Warnings
Contains Epiandrosterone 100mg, 7-Hydroxy DHEA 25mg, and a spirostan derivative 50mg; not for anyone under 21.
Do not use if pregnant or nursing.
Do not combine with prescription hormone therapies or endocrine-active medications without medical supervision.
Not appropriate for drug-tested athletes without verifying compliance risk.
Cycling: This category is typically used in defined cycles rather than continuously. Follow label directions and your broader recovery plan.
All Questions About Blackstone Labs | BSL Extreme Cut | 60 Tablets 13 Q&A
What exactly is Blackstone Labs Extreme Cut designed to do? +
It is a cutting-oriented hormone-support formula designed to support a harder, drier physique look during a cut. The focus is body composition and hormonal support, not stimulant energy or pump.
How much epiandrosterone is in each serving? +
Each 1-tablet serving provides 100mg of epiandrosterone. That sits at the low end of the 100-400mg category range discussed for this ingredient.
Does this product contain a proprietary blend? +
No. The label is fully disclosed with exact doses for all three active ingredients.
Will I feel this right away like a pre-workout? +
Usually no. This formula is better judged over weeks by physique changes, dryness, and cut support rather than an immediate sensation.
Does Extreme Cut contain caffeine? +
The verified active panel does not list caffeine or classic stimulant actives. It is not formulated like a traditional thermogenic fat burner.
When should I take my tablet? +
Take 1 tablet daily, ideally at the same time each day. Many users prefer taking it with food for tolerance and routine consistency.
Can I stack this with creatine? +
Yes, that is a logical stack. A daily creatine like blackstone-labs-creatine-monohydrate-100-sv-500g supports strength and training performance while this formula targets cutting-phase hormonal support.
Should I use organ support with this product? +
Yes, many experienced users pair hormone-support formulas with a support product. blackstone-labs-gear-support is a sensible option from the same brand ecosystem.
Is 100mg epiandrosterone a strong dose? +
It is a meaningful entry dose, not an aggressive top-end dose. It meets the bottom of the 100-400mg category range rather than exceeding it.
Can beginners use this? +
This is not ideal for beginners. It is a specialized hormonal-support product meant for experienced users who intentionally shop this category.
How long should I run it? +
Most users run products in this category for defined cycles rather than indefinitely. Follow the label, your overall program, and appropriate recovery planning.
Can I stack it with a pre-workout? +
Yes, because the verified formula does not include standard pre-workout actives. A product like blackstone-labs-dust-x can cover training energy while Extreme Cut covers the hormonal-support side.
Are there any notable inactive ingredients? +
Yes. The label includes excipients such as phosphatidylcholine, hydroxypropyl-beta-cyclodextrin, titanium dioxide, and FD&C Red #40.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.

Quick Answers

What exactly is Blackstone Labs Extreme Cut designed to do?

It is a cutting-oriented hormone-support formula designed to support a harder, drier physique look during a cut. The focus is body composition and hormonal support, not stimulant energy or pump.

How much epiandrosterone is in each serving?

Each 1-tablet serving provides 100mg of epiandrosterone. That sits at the low end of the 100-400mg category range discussed for this ingredient.

Does this product contain a proprietary blend?

No. The label is fully disclosed with exact doses for all three active ingredients.

Will I feel this right away like a pre-workout?

Usually no. This formula is better judged over weeks by physique changes, dryness, and cut support rather than an immediate sensation.

Does Extreme Cut contain caffeine?

The verified active panel does not list caffeine or classic stimulant actives. It is not formulated like a traditional thermogenic fat burner.

When should I take my tablet?

Take 1 tablet daily, ideally at the same time each day. Many users prefer taking it with food for tolerance and routine consistency.

Can I stack this with creatine?

Yes, that is a logical stack. A daily creatine like blackstone-labs-creatine-monohydrate-100-sv-500g supports strength and training performance while this formula targets cutting-phase hormonal support.

Should I use organ support with this product?

Yes, many experienced users pair hormone-support formulas with a support product. blackstone-labs-gear-support is a sensible option from the same brand ecosystem.

Is 100mg epiandrosterone a strong dose?

It is a meaningful entry dose, not an aggressive top-end dose. It meets the bottom of the 100-400mg category range rather than exceeding it.

Can beginners use this?

This is not ideal for beginners. It is a specialized hormonal-support product meant for experienced users who intentionally shop this category.

How long should I run it?

Most users run products in this category for defined cycles rather than indefinitely. Follow the label, your overall program, and appropriate recovery planning.

Can I stack it with a pre-workout?

Yes, because the verified formula does not include standard pre-workout actives. A product like blackstone-labs-dust-x can cover training energy while Extreme Cut covers the hormonal-support side.

Are there any notable inactive ingredients?

Yes. The label includes excipients such as phosphatidylcholine, hydroxypropyl-beta-cyclodextrin, titanium dioxide, and FD&C Red #40.
95

SuppVault Score

Blackstone Labs | BSL Extreme Cut | 60 Tablets

💊 Clinical Dosing 10/10

3/3 key ingredients with disclosed doses

🏷 Label Transparency 10/10

Full label disclosure

🏭 Manufacturing 4/10

No manufacturing certifications found

🔬 Testing 3/10

No third-party certification found

🧪 Inactive Ingredients 9/10

Minimal inactive ingredients

💰 Value 5/10

Insufficient price/serving data

Scores are relative to category averages. Proprietary blends score lower on transparency naturally — this is neutral fact, not penalty.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.

Sport & Athlete Compliance +
HS — Contains Banned SubstanceNCAA — Contains Banned SubstanceWADA Prohibited

Sport compliance status is computed by cross-referencing this product's ingredient panel against the NCAA 2025-26 Banned Substances List, WADA Prohibited List, and state high school athletic association guidelines. Banned substance lists are updated periodically by their governing bodies. This information is provided for reference only and may not reflect the most current list. Always verify with your organization, coach, or compliance officer before use. SuppVault is not responsible for eligibility decisions.

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