SKU: 21965204060

Stacker4 Ephedra Free | 100 Capsules | Stacker2

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Description

Stacker4 Ephedra Free | 100 Capsules | Stacker2Stacker4 van Stacker2 Ken je Stacker4 nog niet? Het is een voedingssupplement in capsulevorm van het merk Stacker2, een naam die al jaren bekend is binnen de categorie stimulerende supplementen. Elke capsule bevat cafeine en een vaste mix van plantaardige extracten. Stacker4 is de ephedra vrije opvolger van de oorspronkelijke Stacker formules en wordt verkocht in een pot met 100 capsules. Wat er in Stacker4 zit De samenstelling van Stacker 4 draait om

Stacker4 van Stacker2

Ken je Stacker4 nog niet? Het is een voedingssupplement in capsulevorm van het merk Stacker2, een naam die al jaren bekend is binnen de categorie stimulerende supplementen. Elke capsule bevat cafeine en een vaste mix van plantaardige extracten. Stacker4 is de ephedra-vrije opvolger van de oorspronkelijke Stacker-formules en wordt verkocht in een pot met 100 capsules.

Wat er in Stacker4 zit

De samenstelling van Stacker 4 draait om twee onderdelen. Het eerste is cafeine anhydraat, een geconcentreerde vorm van cafeine in poedervorm. Het tweede is een kruidenmix van groene thee-extract, yerba mate, guarana, capsicum, kola noot en Siberische ginseng. Cafeine komt in de natuur ook voor in koffiebonen, theebladeren en guaranazaden. In Stacker4 zit het zowel als pure cafeine als via die plantaardige bronnen. De capsule zelf is gemaakt van gelatine. De exacte dosering per kruidenextract maakt de fabrikant niet bekend, omdat die in een vaste mix van 250 milligram zitten. Wel staat het cafeinegehalte los vermeld, omdat dat wettelijk verplicht is bij dit soort hoeveelheden.

Een hoge dosis cafeine per capsule

Wat veel mensen over Stacker4 willen weten, is hoeveel cafeine er per capsule in zit. Het antwoord: 300 milligram per capsule. Dat is een hoge hoeveelheid, vergelijkbaar met ongeveer drie koppen koffie in een enkele capsule. Juist door dat gehalte is het belangrijk om de aangegeven dosering aan te houden en niet zomaar meerdere capsules tegelijk te nemen. Mensen die gevoelig zijn voor cafeine merken zo'n dosis duidelijk. Ter vergelijking: een gewone kop filterkoffie bevat rond de 90 milligram cafeine. Drie capsules op een dag, het maximum dat de fabrikant aangeeft, komen dus uit op 900 milligram. Daarom is het verstandig om je eigen cafeine-inname uit andere bronnen mee te tellen.

De kruidenextracten in de blend

Naast cafeine bevat Stacker4 een blend van plantaardige extracten. Groene thee en yerba mate zijn bladeren die van oudsher als thee worden gezet. Guarana is een zaad uit de Amazone dat van nature cafeine bevat. Capsicum is de stof uit Spaanse peper die voor de pittige smaak zorgt. Kola noot komt van de kolaboom en Siberische ginseng is een wortel, niet te verwarren met de Panax-ginseng die je in andere supplementen vindt. Deze planten worden al lang in stimulerende supplementen gebruikt. Groene thee en guarana leveren van nature een deel van het cafeinegehalte, terwijl capsicum bekend is van de pittige stof capsaicine. De extracten zijn samengevoegd tot een vaste mix, zodat elke capsule dezelfde verhouding bevat.

Ephedra-vrij sinds jaren

De originele Stacker-producten bevatten vroeger ephedra. Die stof is in Europa niet meer toegestaan in supplementen. Stacker 4 is daarom volledig ephedra-vrij samengesteld, met cafeine en kruidenextracten als basis. Het product wordt in Europa op de markt gebracht door Stacker2 Europe en is een van de bekendste namen in zijn categorie. De capsulevorm maakt het eenvoudig te doseren, zonder dat je iets hoeft af te wegen of te mengen. Goed om te weten: omdat de EU-wetgeving streng is over wat je over de werking van zo'n product mag zeggen, vind je op deze pagina vooral informatie over de samenstelling en het gebruik.

Shipping Notes
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SKU: 21965204060

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4.2 ★★★★★
Based on 11 reviews
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T. Snellgrove
Boise, US
★★★★★ 5
Spoiler-free Review - The Martian Dialed Up To 11
Format: Kindle
If you loved the Martian in either book or movie form, Project Hail Mary will likely delight you. The main character (who I'll leave nameless to avoid spoilers) is nearly identical to The Martian's lead, Mark Watney. They have similar personalities, the same fundamental mission of surviving in a hostile environment, and both use real-world biology, chemistry, and physics to solve their problems from start to finish. The book provides an early test for whether or not you'll enjoy it: on page five, when our protagonist is being quizzed by an annoyingly paternalistic computer that is demanding to know the cube root of eight, our hero replies with the smart aleck answer: "two times e to the two-i-pi". If you find this interaction amusing, all good; if it's off-putting, turn back now. In fairness, Project Hail Mary shares The Martian's flaws as well. The protagonist's character is a bit better developed - but only slightly. The conflict is entirely man-vs-environment. And though the protagonist is often in situations that might cause one to ponder the essential truths of the human condition, he never does. His personality and behavior as a sarcastic problem-solving scientist / engineer are pitch-perfect but the book rarely goes any deeper. He has an established motivation and a flaw to be overcome - but these are really just superficial grace-notes (see what I did there?). This is not Crime and Punishment. Instead, it's a page-turning action-hero book - where instead of firing shots, the action hero saves the day by doing science really well. Books that celebrate real science are rare, so if that's what you came for, you're going to love what Project Hail Mary delivers. Although largely similar, there are four main ways in which Project Hail Mary differs on the Martian so I'll touch on those now: 1. The stakes are higher - much higher! In The Martian, Mark Watney is already a bit of a super hero - he's an astronaut after all - and all he really needs to do is stay alive. In Project Hail Mary, our hero is much more of an every-man and his job is nothing less than to save the human race. 2. The Martian is told in chronological order. In Project Hail Mary, our hero awakens with a serious case of amnesia and can't even remember his own name. He starts his adventures at essentially the most dull part of his recent life. As time passes he both tackles dramatic new challenges and remembers the wild adventures that brought him here. Andy Weir does a fantastic job of interweaving the past and the present and the result is a very effective narrative framework that lands on a "Wow!" moment at the end of nearly every chapter. 3. Project Hail Mary is a buddy story. In The Martian, Mark Watney is alone in his battle against the elements of Mars for nearly the entire book. By contrast, Project Hail Mary, once it really gets going, is absolutely a tale of buddy-bonding. This surprised and, ultimately, delighted me. It helps give the protagonist a bit more of a human side. And the team problem-solving scenes are, again, pitch-perfect. 4. Project Hail Mary puts the 'fiction' back in Science Fiction. In The Martian, leaving aside the opening wind storm and the closing chapter of wish-fulfillment heroics, we are essentially in a very tightly written NASA simulation. I found this incredibly enjoyable - but one could reasonably ask, where are the big ideas? Where are the bold 'what ifs'? The answer is, they're in Project Hail Mary! The science is still real and omni-present, but the fiction is big, bold, and awesome. If you're main draw for the Martian was the NASA lore and you wished Weir would write an even tighter sequel detailing the Apollo 13 events, you may be a bit disappointed - but everyone else is going to love this change of pace! So that's it in a nutshell: Project Hail Mary is a fantastic next book to read after The Martian. It's a clear spiritual successor but brings new ideas and structure to the game. Enjoy!
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Reviewed in the United States on February 16, 2025
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Joe Rak
Bozeman, US
★★★★★ 4
Excellent Hard Sci-Fi… Until the Politics Pull You Out
Format: Kindle
I was really excited to dive into Project Hail Mary. As a longtime Isaac Asimov fan, I’ve been craving fresh, modern hard science fiction that actually respects the science. This book delivered — at least for a while. The author injects real science into the story in a way that’s both fun and fantastic. You don’t need to be an engineer to follow it; a solid high-school education is plenty. The concepts stretch your imagination without ever feeling impossible, and for the first chunk of the book I was hooked. I genuinely thought I’d found a new favorite author. Then the jarring interruptions started. Out of nowhere you get yanked out of the immersive sci-fi world by modern political pandering that feels completely unnecessary. A random parenthetical about Columbus “discovering an already inhabited world” when comparing something to the New World. Casual pronoun lectures. Characters selected or described by race and identity in ways that scream “check the boxes.” These moments don’t serve the story — they feel injected. Once you notice the author’s leanings, it becomes hard to unsee. Each time it happens, the fantasy evaporates. It takes several chapters to sink back into the story… only for the next micro-lecture to pull you right back out. Overall, I loved the writing, the hard science, and the imagination. It’s some of the best sci-fi I’ve read in years. I just wish the author had trusted the story instead of sneaking in real-world politics. It’s like eating the best meal of your life… and then finding a hair or two in it. Strongly recommended for the sci-fi, with the above caveat.
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Reviewed in the United States on May 17, 2026
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psusanh
Louisville, US
★★★★★ 5
Engrossing and Thought-Provoking
Format: Hardcover
This is an absolutely engrossing read in the first half of the book, especially--so much so that I actually canceled a social plan so that I could keep reading. The author shifts effortlessly across scenes and time--the play of past and present is very much part of the book's plot and insight--and I developed a fast curiosity and unsettling investment in understanding our anti-heroine/heroine Natalie. This surprised me, because had a friend not recommended the novel I never would have signed on to spend time in the head of a "tradwife." For me the novel was an imagined and imaginative provocation on American womanhood (and masculinity) in the 21st century, where no options or "performances" seem entirely satisfying or even real. I found it simultaneously disturbing and darkly humorous, especially in its depiction of young women's collegiate lives. However, readers should have some tolerance for caricature throughout. While I howled at the depictions of the miserable lives of aspiring "modern" women in the dorms and figuratively pounded my fists at the hypocrisy of the tradwife, I was also conscious of hyperbole and exaggeration--no, their lives aren't that bad; nor, I would guess, are the "tradwives" as bad as Natalie, who is a profoundly unlikable character. I did find that the novel bogged down in its middle and late-middle chapters--the mystery of what's happening to Natalie remains but the momentum seems to stall out into repetition. I also felt that the ending seemed too rushed and too tidy, given the nuance we see earlier in the novel. It ends with what feels like a reductive endorsement of modern (or post-modern) life for women when, earlier in the novel, we get to contemplate the flaws in ALL of the scripts and performances that women--and the hapless Caleb-- are asked to live by, or choose... Indeed, the characters that I would have loved to hear more from are the two who seemed more grounded and, ultimately, perhaps happier than the others: Natalie's sister and even her mother... The concluding exposition felt rushed, as did the analysis, in other words...Some of the religious scenes seemed tone-deaf to me... I'm not an evangelical, but Natalie's relationship to God strained credulity. **Highly recommend** this to anyone looking for a provocative and engrossing read on women's lives and constraints in the age of social media that engages in a fascinating thought experiment along the way...
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Reviewed in the United States on May 26, 2026
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Minifan
Lexington, US
★★★★★ 4
An unexpected reading experience!
Format: Hardcover
Very unexpected novel! I went into it without any knowledge or prior information of what it was going to be about. Main character is not a person you would want to be friends. So when calamities happen to her it was hard for me to muster up much sympathy or compassion. It was more of “you had this coming, you deserve every miserable minute”. And boy, there were many! Some harder to believe than others. As I was reading, I first thought- I don’t want to keep this book, it’s not worth saving. But it developed to be definitely the type of story that sticks in your mind, you find yourself revisiting parts and characters and wondering why that happened and why did that person react a certain way. And to me that’s a book worth reading and keeping on my limited bookshelf. So I changed my opinion as I read to the end of the novel. It is certainly a book worthy of a neighborhood book group discussion. I am recommending and sharing my copy to family members and reading friends.
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Reviewed in the United States on May 20, 2026
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Cheryl R💎
Massapequa, US
★★★★★ 5
Beneath the perfect surface
Format: Kindle
Yesteryear completely caught me off guard in the best possible way. What begins as a fascinating look into social media influence, curated perfection, and historical living slowly unfolds into something far deeper and far more emotional than I expected. The storytelling was incredibly well done, especially the way the author balanced the polished modern influencer world against the harsh realities of 1800s frontier life. The transitions between timelines and perspectives were seamless, and by the end, every piece fit together in a way that completely redefined the story. What made this especially compelling for me was how layered Natalie’s character felt. Her upbringing, family expectations, faith, public image, and the pressure to maintain perfection all shaped the choices she made throughout the story. Rather than feeling one-dimensional, she felt like someone slowly buckling under the weight of everything she believed she was supposed to be. The emotional impact of this book surprised me. Beneath the historical elements and social media commentary is a story about identity, appearances, family, and the toll that constant performance can take on a person and those around them. This is one of those books where the less you know going in, the better the experience will be. I expected an entertaining premise, but I ended up with a story that lingered long after I finished the final page.
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Reviewed in the United States on May 28, 2026

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