You've decided to be stronger at 50 than you were at 25. This stack was built for exactly that decision.
The fitness industry is built for 22-year-olds. klar is the first supplement stack built for people who train to stay powerful for decades.
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#1Whey Isolateground
#2Creatineforce
#3Magne- siumrecover
#4Vitamin D3 + K2light
#5Zinc + Vit. Cguard
#6Omega-3flow
6Products
0Fillers
40+Built for
Creapure® Certified·No Fillers·Third Party Tested·Arla Whey Source·Full Transparency·mTOR Optimised·Creapure® Certified·No Fillers·Third Party Tested·Arla Whey Source·Full Transparency·mTOR Optimised·
The gap
The industry was never built for you.
Walk any supplement aisle and you'll find thousands of products. Don't even bother. It's all just noise. Built for 22-year-olds chasing a pump.
You're different.
You're in for the long game.
Building and guarding muscle for longevity.
klar is the supplement stack built for that. So you can focus on each rep.
Six supplements. That's it.
The core six.
Six scientifically proven supplements for lifters 40+. Each one picked because they reinforce each other and compound. In the right forms, at the right doses. That's it.
#1Creatine MonohydrateforceThe most researched performance supplement in existence. Powers ATP regeneration for strength output. Critical after 40 where natural phosphocreatine capacity declines.Creapure® only — 99.9%+ purity, manufactured in Germany to pharmaceutical standards. Not all creatine is equal.Creapure® · 500g · One ingredient
#2Whey IsolategroundAfter 40, mTOR sensitivity declines. You need leucine-rich, fast-absorbing protein to reliably trigger muscle protein synthesis. Isolate — not concentrate — delivers it cleanly.Arla source — grass-fed Nordic dairy, cold-processed. No sweeteners, no fillers. What you see is what's inside.Informed Sport · 900g · No fillers
#3MagnesiumrestCofactor in 300+ enzymatic reactions — muscle contraction, protein synthesis, sleep quality. If you train hard and sleep poorly, this is likely a core issue.Bisglycinate form only. Oxide and citrate absorb poorly. Bisglycinate crosses the intestinal wall intact — dramatically higher uptake.Bisglycinate · 120 caps · High absorption
#4Vitamin D3 + K2lightD3 regulates testosterone, calcium absorption, and immune function. K2 routes calcium into bone — not arteries. Most people in temperate climates are chronically deficient.5,000 IU D3 + 100mcg K2 as MK-7 — not the inferior MK-4 form. 72-hour half-life. Most D3 supplements omit K2 entirely.5000 IU D3 · 100mcg MK-7 · 90 caps
#5Zinc + Vitamin CguardZinc drives testosterone synthesis, immune defence, and collagen repair — all declining with age and training stress. Vitamin C is the rate-limiting cofactor for connective tissue recovery.Zinc bisglycinate — 3–4× the absorption rate of sulphate or oxide forms. Paired with Quali®-C for verified purity.Bisglycinate · High bioavailability · 90 caps
#6Omega-3flowReduces systemic inflammation, supports cardiovascular health, improves muscle protein synthesis in ageing muscle. Most omega-3 products are chronically underdosed — therapeutic effect requires 3g+ EPA/DHA daily.Triglyceride form — 70% more bioavailable than the ethyl ester used in 80% of commercial products. Third-party tested.3g EPA/DHA · Triglyceride form · 90 caps
The klar stack
Your stack. Always there.
Monthly subscription — set and forget.
Never worry about running out.
So you can focus on building your strong life.