SKU: 56442948619

Blackstone Labs | BSL Extreme Mass Stack | 2-Product Stack

Sale price$133.16 Regular price$147.95
Save 10%

Pay in installments of $36.99 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 10 - Sep 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Blackstone Labs | BSL Extreme Mass Stack | 2-Product StackThree clear anabolic compounds with support for better absorption Blackstone Labs Extreme Mass Stack (Abnormal, Brutal, Chosen) isn't your everyday muscle builder. It's a heavy hitting prohormone stack with three strong oral compounds: 2,17a dimethyl 17b hydroxy 5a androst 1en 3 one at 10 mg, 2a,17a dimethyl 5a androstan,17b ol 3,3 azine at 15 mg, and 13 ethyl 3 methoxy gona 2,5(10) dien 17 one at 15 mg. The idea here is stacking different anabolic

Three clear anabolic compounds with support for better absorption

Blackstone Labs Extreme Mass Stack (Abnormal, Brutal, Chosen) isn't your everyday muscle builder. It's a heavy-hitting prohormone stack with three strong oral compounds: 2,17a-dimethyl 17b-hydroxy-5a-androst-1en-3-one at 10 mg, 2a,17a-dimethyl-5a androstan,17b-ol 3,3-azine at 15 mg, and 13-ethyl-3-methoxy-gona-2,5(10)-dien-17-one at 15 mg. The idea here is stacking different anabolic compounds to amp up mass and strength way more than one alone. You'll feel it in better gym sessions, more weight on the scale, fuller muscles, harder looks, and that extra aggression during workouts—stuff natural supps don't usually deliver.

Those three hormonal ingredients are what make it tick, putting it in the advanced league. They're not just vitamins or stims; they're designed to boost anabolic signals. You won't get a quick buzz, but over time, you'll notice stronger lifts, denser muscles, faster recovery, and real progress. Since they're methylated, you get that intense drive and quick physique shifts, but watch for liver stress, lipid changes, blood pressure, and hormone suppression.

Support stuff helps out too. Piperine 95% boosts absorption—it's solid for slowing down how fast your body breaks down and clears out compounds, so you get more bang from them. At around 5 mg in studies, piperine blocks glucuronidation (that's when your body tags stuff for quick exit) and can increase exposure to certain act

Key Highlights

  • Three hormonal compounds listed out—10 mg, 15 mg, and 15 mg. Cool because it's not all hidden in a prop blend; you see exactly what's driving the mass gains.
  • Stacks multiple compounds for mass instead of just one. In this world, mixing different orals hits strength, weight, muscle density, and workout power from more angles.
  • One tablet per serving, 60 servings in the bottle. Easy to stick with, especially for cycle stuff where missing days messes things up.
  • Piperine 95% to help absorption. It's legit for blocking quick breakdown, so you get more from the other ingredients—makes sense for maxing oral effects.
  • Grapefruit seed extract for extra absorption help. Dose isn't shown, but it's common in strong formulas to mess with metabolism and keep ingredients around longer.
  • Niacinamide for NAD+ support without the flush. It's not the flushing kind; it helps with cell energy through NAD+ and NADP+ paths.
  • Vitamin B6 and B12 for nerve and energy basics. Not the stars here, but smart adds for a tough stack like this.
  • Label shows some transparency in a shady category. Main compounds have doses, better than old-school prop blends, even if supports are hidden.

Who Is This For?

  • Advanced bodybuilders bulking hard who need more than creatine or naturals. Three listed compounds target size, density, and gym gains in a cycle, not casual use.
  • Experienced guys who know oral hormone responses and plan everything around cycles. This fits if you see supports, labs, and post-cycle as musts.
  • Physique folks chasing weight, fullness, and tough workouts in big eats. Multi-compound setup gives a harder push than single ones.
  • Intermediate-advanced lifters plateaued after years of basics like protein and overload. It's for real intervention in gains, not hype.
  • People who like tablets over powders or cap piles. One-tablet daily keeps it simple for consistent weeks-long results.
  • Lifters wanting potency plus uptake, with piperine 95% and grapefruit seed extract. Appeals to label readers beyond just the name.

How to Use

Follow the label exactly, don't up the dose on your own. One tablet serving—swallow whole with lots of water; don't crush unless told by a pro. With a meal helps stomach and fits the absorption ingredients like piperine 95% and grapefruit seed extract. It's not a pre, so daily consistency matters more than gym timing. Avoid alcohol, other orals, or liver-heavy stuff. If on meds, clear it first—piperine and grapefruit can change how they work. Stack smart with liver support, fish oil, hydration for BP, protein, and a solid post-cycle plan. Cycle it, don't run forever due to suppression and stress. Store cool and dry, away from heat or sun. If weird sides hit, stop and get advice.

What to Expect

First 0-30 minutes? Nothing much—it's not a pre with a buzz. Early days might bring gut stuff, appetite changes, or slight workout aggression. Real stuff hits week 1, ramps up weeks 2-4: more weight, better lifts, fuller muscles, that on-cycle vibe. Downsides can build too: higher BP, acne, tiredness, bad sleep, pumps, or suppression feels. Piperine and grapefruit work quietly, B vitamins support without fanfare. Judge it over time for mass and performance, not day one—risks build gradually too.

Key Ingredients

  • 2, 17a -dimethyl 17b-hydroxy-5a-androst-1en-3-one — 10mg — Core anabolic driver for aggressive mass-cycle progression
  • 2a, 17a -dimethyl-5a androstan, 17b-ol 3, 3-azine — 15mg — Second oral active broadens the stack's anabolic profile
  • 13 -ethyl-3-methoxy-gona-2,5 (10)-dien-17-one — 15mg — Adds potency to the multi-compound mass stack
  • Piperine 95% — Amount not disclosed — Supports absorption by slowing rapid ingredient breakdown
  • Niacinamide — Amount not disclosed — Provides vitamin B3 support for cellular energy metabolism
  • Grapefruit seed P.E. — Amount not disclosed — Included to complement the formula's absorption strategy
  • Pyridoxine Hydrochloride — Amount not disclosed — Supports normal amino acid and nervous-system metabolism
  • Cyanocobalamin — Amount not disclosed — B12 support for red blood cells and nerve function

Frequently Asked Questions

What exactly is Blackstone Labs Extreme Mass Stack (Abnormal, Brutal, Chosen)?

Based on the verified formula provided, this is an advanced oral mass stack built around three disclosed anabolic/designer-hormone style actives: 2,17a-dimethyl 17b-hydroxy-5a-androst-1en-3-one at 10 mg, 2a,17a-dimethyl-5a androstan,17b-ol 3,3-azine at 15 mg, and 13-ethyl-3-methoxy-gona-2,5(10)-dien-17-one at 15 mg. It is not a natural muscle builder or basic sports nutrition product.

Is this the same thing as a pre-workout or mass gainer?

No. This formula does not work like a pre-workout, and it is not a calorie-based mass gainer. The intended effects are cumulative hormonal/body-composition changes over weeks rather than an acute energy rush before training.

How should I take this product?

The serving information provided is 1 tablet, and consistency matters more than pre-workout timing. Most users take it daily with food and water to improve tolerance, while following the label exactly and planning support supplements and post-cycle strategy in advance.

Will I feel it right away on day one?

Usually not in the way you would feel caffeine or a stim-heavy pre-workout. The core experience from the three hormonal actives tends to build over 1-2 weeks, with more obvious changes often showing up in weeks 2-4.

Why are piperine 95% and grapefruit seed extract in the formula?

They appear to be included for absorption and metabolism support. Piperine has strong evidence as a bioavailability enhancer through glucuronidation inhibition, and grapefruit-derived ingredients are often used in advanced oral formulas for similar pharmacokinetic reasons.

Are all ingredient doses fully disclosed?

No. The three primary hormonal actives are disclosed with exact milligram amounts, which is helpful, but grapefruit seed extract, niacinamide, pyridoxine HCl, piperine 95%, and cyanocobalamin are present at undisclosed amounts. That means the support side of the formula is only partially transparent.

Is this product suitable for beginners?

No. This is an advanced-use formula with three designer-hormone style compounds and a risk profile far beyond standard supplements like creatine, protein, or pre-workout. Beginners should exhaust evidence-based basics first.

Can I stack this with other hormone products?

That would substantially increase complexity and risk, especially around liver stress, blood pressure, lipids, and suppression. Most experienced users keep stacks conservative, build in support supplements, and avoid layering multiple oral anabolic products without a very deliberate plan.

Does this product require cycling?

Yes, this type of formula is generally used in planned cycles rather than continuously. The reason is straightforward: the hormonal actives can suppress natural hormone production and create cumulative systemic stress over time.

Are there medication interaction concerns?

Yes. Piperine 95% and grapefruit-derived ingredients can alter metabolism and increase exposure to certain medications, so anyone taking prescriptions should speak to a qualified healthcare professional before use.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 56442948619

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 6 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Shianne Whipple
Draper, US
★★★★★ 5
Strong Omegaverse Comfort and a Attention Grabbing Plot
Format: Kindle
Jillian West never misses when it comes to Omegaverse, and Not Ready is no exception. This story was the perfect blend of cozy comfort and emotional depth while still delivering a strong plot. Vale is such a powerful heroine, she is strong, capable, and determined but I love that she still allows her pack to love and take care of her. It’s that balance of independence and vulnerability that makes her so relatable. The relationship dynamics were amazing: Bishop is steadfast and completely head over heels, Mercy is skeptical but protective in his own way, and Holt is the hesitant one whose slow fall is so satisfying to watch unfold. The romance hits that sweet spot between insta-love and cautious build, keeping me hooked the entire way through. And that ending. Oh my god, the cliffhanger! I need the next book in this duet immediately.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 28, 2025
N
Verified Purchase
NLB
Pawtucket, US
★★★★★ 5
Interesting
Format: Kindle
So I will say I enjoyed the story, for sure had its moments where it dragged but it was a great story. I really liked that omegas picked their alphas/make the pack. Normally the Alphas make it and the omega fits in with them which is great but I enjoyed this new version where all the power basically went to the omega. It was a nice change of pace. I can admit some of the weird bedroom stuff with her being pregnant was odd, it’s really not hard to do stuff when pregnant (I know I’ve had two and it’s normal and even encouraged at the end especially if you want the baby out). But I like the story as a whole and will read the second, I do hope the next one isn’t dragged bc it stopped being action or tense after she met her alphas and I don’t think it was brought up or properly done when they tried to do it. More sweet after she left.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2024
A
Verified Purchase
Altairjones
Omaha, US
★★★★★ 3
I’m a little disappointed.
Format: Kindle
I usually like Jillian West’s books but this one was missing a lot for me. The pregnancy didn’t come across as real. She’s on her feet for 12 hour days but is perfectly healthy at 8 months pregnant? Yet the week she moves in all of a sudden she’s not? She is planning on actually running during one of the plot buildups. But at 8 months pregnant that’s incredibly hard to do. The lack of breathing ability and lung space, the change in body center, mass, and gravity. All of it prohibits running, unless you’re an athlete this didn’t come off as at all realistic. I didn’t feel any connection with the alphas. There wasn’t any emotional connection. It could be because of the tense it was written in. But I didn’t get any deep feelings out of this. It came across as checking off boxes. Even the spicy scenes weren’t really believable for me. I wanted to see them fall for her, and it just kind of all fizzled. Even Bishop. One thing I did really like was the ending. I did not see it coming and I’m interested in reading book two because of it. But on the whole this book was mostly disappointing for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2024
M
Verified Purchase
Melissa Williams
Lexington, US
★★★★★ 4
4.25 stars
Format: Kindle
Vale is an 8 month pregnant omega working as a waitress at a strip club and a cam girl. She starts to get very creepy vibes from a regular at the club, and her baby daddy ghosted her. She has had an online relationship with a man named Bishop through her cam girl status. One night, bishop was paying to watch her sleep and ansthe creepy regular Andrew break in and watch her sleep he tells vale to come to him at his business now. She flees and finds herself at a large security company with some.hot of alphas who are there to help her. This imegaverse is a little different than I have read, but I am thoroughly enjoying it. Vale is not a traditional omega she was raised by a single beta mom, and the alphas are not normal alphas they have never really loved pack life. But they are ruthless mercenaries. They need her, and she needs them. I love the aspect of the stalker and now the plot twists at the end, so so good. Sometimes, it seemed a little slow and stale mated, but since this a duet, I think It was just her starting to have Vale get to know her alpha suitors. Cliffhanger for sure with this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 9, 2024
A
Verified Purchase
Austin & Cambria
Charlottesville, US
★★★★★ 5
That ending 😫
Format: Kindle
I fell into a false sense of security and really thought this was gearing towards a happy ending. Then I realized there’s no work they don’t punish Andrew. I really liked Vale’s character. I don’t normally read books with pregnancy but going into this knowing she was pregnant made it more enjoyable for me. I loved Bishops devotion to her and her happiness. I also loved that Holt and Mercy couldn’t fight their attraction to her. I love scent matches so very much. I’m so curious to see how this duet will end up. And I need to pay more attention and notice that a book I’m starting is a duet to begin with lol
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2025

recommand products