Bestseller
Sleep deeper · wake refreshed
The Sleep (Original) Stack
Magtein® Magnesium L-Threonate, Apigenin and L-Theanine in one filler-free formula.
£27.9930 servings · 93p/day
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Your Routine.
GMP certified
Lab tested
Non-GMO
Built differently.
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No mystery blends.
The science behind
Real routines.
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Sleep, recovery
Read the journal ↗
Label literacy · 6 min
Wellbeing · 5 min
Dosage guide · 8 min
The Supplement
Free shipping on all orders!
Pure · synergistic ingredients · no fillers
Your Routine.
Our Standard.
Targeted, science-backed supplements with transparent formulas and effective dosages—built to help you feel and perform at your best.
GMP certifiedLab testedNon-GMOFull-dose formulasNo proprietary blends
Free deliveryOn every order
Start with what you want to change
Shop by goal.
Choose the outcome that matters most, then explore the exact dosage and science behind every stack.
Healthy ageing · daily resilience
The Longevity Stack
A complete, convenient formula designed to support long-term wellbeing.
£22.99High-strength formula
Menopause · everyday balance
The Menopause Stack
Targeted support for women navigating menopause and perimenopause.
£19.99Targeted daily support
Male vitality · performance
The Testosterone Stack
High-strength ingredients selected to support male vitality and performance.
£16.99Transparent dosages
Brain magnesium · recovery
Magnesium L-Threonate
Powered by Magtein®—a specialised form of magnesium used in the Sleep Stack.
£25.99Single-ingredient focus
Focus · energy · clarity
The NeuroFocus+ Stack
A nootropic brain stack built around calm focus, mental performance and clarity.
£19.99Multi-ingredient stack
Prostate · urinary support
The Prostate+ Stack
A comprehensive botanical and micronutrient formula for targeted male support.
£19.99Targeted daily support
★★★★★Verified customer
“The perfect stack I was looking for.”
Jas Phar · The Longevity Stack
The standard behind every stack
Built differently.
Explained clearly.
Our Why
Many supplement brands hide weak formulas behind “proprietary blends”, cheap fillers, and underdosed actives while claiming “extra strength.” We do things differently—focusing only on the nutrients that matter, in the right forms and effective dosages.
We built The Supplement Stack because, as passionate lifestyle enthusiasts, we couldn’t find products that matched our standards. After searching, testing, and coming up short, we created our own: high-strength supplements formulated with precision, synergistic ingredients, and concentrated extracts.
Our Brand
Our mission is simple: set a new standard for supplements. Every product reflects our values of quality, integrity, and care. We are honest, transparent, and uncompromising—building a brand people can truly trust.
Our Products
Each formula is developed with precision—synergistic ingredients at effective dosages, supported by rigorous research and refinement. No fillers, shortcuts, or proprietary blends. Just targeted support you can rely on.
What transparency looks like
No mystery blends.
No fairy-dusting.
We tell you what is inside, why it is there and how much you are getting. That should be the baseline—not a premium feature.
Explore the science ↓Typical supplementsThe Supplement Stack
Hidden proprietary blendsFull dosage transparency
Long labels, token quantitiesEffective, purposeful dosages
Cheap fillers and shortcutsPure, synergistic formulas
Vague marketing claimsResearch linked ingredient by ingredient
Natural, science-backed supplements
Our Mission
Too often, health is left to profit-driven corporations and pharmaceutical giants. We take a different path. At The Supplement Stack, our focus is on holistic, natural solutions built from passion, not profit. These are products we believe in and use ourselves because we hold them to the highest standard.
Designed to support athletes, lifestyle enthusiasts, sports performance, recovery, and targeted health needs, our supplements utilise only research-backed ingredients at effective dosages, crafted for individuals who prioritise their long-term well-being.
Synergistic formulasEffective dosagesScience-backedTrusted quality
Don’t just take our word for it
The science behind
every stack.
Open a formula to see the active ingredients and research direction. Full study references remain available on the live product pages.
01Sleep (Original) StackCalm · recovery · quality rest
Magnesium L-Threonate — 2,000mg · 144mg elemental
A highly bioavailable form included to support a calm pre-sleep routine, normal psychological function and muscle function.
L-Theanine — 200mg
A non-sedating amino acid associated with relaxation and calm focus.
Apigenin — 50mg
A plant flavonoid found in chamomile, included as part of a considered pre-sleep routine.
02Testosterone StackVitality · performance
Fenugreek, Fadogia agrestis, zinc picolinate, boron and purified Himalayan shilajit—presented with transparent dosages and linked research.
View studies and full formula ↗03Longevity StackHealthy ageing · resilience
Nicotinamide Riboside, GlyNAC, trans-resveratrol, pterostilbene, fisetin, vitamin D3 and K2 in a comprehensive daily formula.
View studies and full formula ↗04Menopause / Perimenopause StackBalance · comfort · resilience
KSM-66® Ashwagandha, red clover isoflavones, Rhodiola, Vitex, fennel and vitamin B6 in one targeted formula.
View studies and full formula ↗05NeuroFocus+ StackAttention · memory · calm focus
Citicoline, Bacopa, Rhodiola, phosphatidylserine, L-Theanine, Lion’s Mane and coffee fruit extract.
View studies and full formula ↗06Prostate+ StackTargeted male support
Beta-sitosterol, saw palmetto, nettle root, pumpkin seed, Pygeum, lycopene, green tea, pomegranate, zinc and selenium.
View studies and full formula ↗07Magnesium L-ThreonateBrain magnesium · recovery
A focused Magtein® formula for shoppers who want Magnesium L-Threonate without a wider stack.
View product details ↗Straight from our customers
Real routines.
Real experiences.
“The perfect stack I was looking for.”
Jas Phar · The Longevity Stack
“Genuinely feel a difference while taking this stack. Blood tests confirm that my energy levels and improvements aren’t just placebo.”
Verified customer · The Testosterone Stack
“These really work for me. My bloating has stopped and my mood seems to have got better. Have recommended to friends.”
Sally Davies · The Menopause Stack
“This has literally changed my life. After years of feeling like I never got into a deep sleep, this was a total game changer for me.”
Anna · The Menopause Stack
“I have added these supplements into my regime for over a month and can say they have greatly benefited my sleep.”
Verified customer · The Sleep Stack
“Been taking it for a few nights and noticeably drift to sleep a lot quicker. Will purchase again at a very fair price.”
Ben Baynton · The Sleep Stack
We are nerds, just like you
Sleep, recovery
and performance.
Label literacy · 6 minHow to read a supplement label without getting lost in the small print
The front of a supplement pack has a job to do. Turn it around and the real story begins.
Wellbeing · 5 minHow can supplements support you?
Explore the benefits, the risks to consider, and how to choose the right products for your needs.
Dosage guide · 8 minEffective dosages vs “fairy-dusting”
A long ingredient list can hide a common trick. Learn how to spot real value on a label.
About
The Supplement
Stack.
Founded by two fitness enthusiasts who believe in the power of synergy and purity in supplements.
Our journey began as we searched for high-quality, all-in-one supplements that wouldn't break the bank. We were often disappointed with fillers in products and found that purchasing individual supplements mentioned on podcasts and other sources became expensive. With a shared vision to create a better solution, The Supplement Stack was born.
Our full storyNot sure where to start?Find your stack in 30 seconds