Training stacks built to support energy, pump, hydration, and performance.
INTELLEKT™ EVIDENCE LIBRARY
Most supplement brands only talk about what they put in. We evaluate the whole industry against the evidence — what earns a place in an INTELLEKT formula, what’s still unproven, and what the marketing got ahead of. When the data disagrees, we side with the data.
HOW WE RATE
We weight our verdicts toward meta-analyses and systematic reviews over single trials. A promising mechanism or one positive study is a starting point, not a green light.
Strong, repeated human evidence. These earn a place in our formulas.
Real potential, but the evidence is still thin or early. We use these carefully and say so.
The marketing outran the science. No meaningful human evidence, so we leave them out.
The most researched sports-nutrition ingredient there is. Consistent human evidence for strength, power, and lean mass, backed by an ISSN position stand.
See the research →Supports nitric oxide, blood flow, and training pumps when dosed to the research (6g+). A pump-formula staple for good reason.
See the research →Raises muscle carnosine to buffer fatigue in high-intensity work. Supported by an ISSN position stand. The tingle is harmless and temporary.
See the research →An osmolyte studied for strength, power, and training output at a 2.5g dose.
See the research →The most reliable ergogenic aid in sports nutrition for energy, alertness, and performance. Backed by an ISSN position stand. Dose to tolerance.
See the research →Pairs with caffeine to smooth the stimulant curve and support steady focus without adding to the jitter.
See the research →An amino acid studied for maintaining focus and mental output under demanding, high-stress training.
See the research →Supports endurance and cellular hydration, and shows up across well-built performance formulas.
See the research →A patented inositol-stabilized arginine silicate studied in RCTs for raising nitric oxide and blood flow around training.
See the research →Milk-derived lactotripeptides (IPP/VPP) studied for vascular support and blood flow, with meta-analysis backing on the vascular side.
See the research →A leucine metabolite studied for reducing exercise-induced muscle breakdown and preserving lean mass. Covered by a 2025 ISSN position stand.
See the research →Sodium, potassium, and magnesium are fundamental to hydration, fluid balance, and performance in sweat-heavy training.
See the research →A water-soluble antioxidant supporting exercise recovery and normal immune function.
See the research →Adequate vitamin D status is linked to muscle function and strength, with research focused on athletes.
See the research →A cofactor in energy metabolism, amino-acid metabolism, and neurotransmitter synthesis.
See the research →Supports normal energy metabolism, red blood cell formation, and nervous-system function.
See the research →A highly bioavailable choline source. The human data on power output is early and small-sample, so we use it at a measured dose rather than overselling it.
See the research →Works by slowing the breakdown of acetylcholine. The mechanism is sound, but long-term human data in a training context is limited, so it earns a measured role, not a headline.
See the research →A patented citicoline studied in RCTs for attention and memory. The evidence is real, but it sits in cognition research rather than training performance, so we keep our claims narrow.
See the research →A gentler, longer-acting cousin of caffeine. There’s some supportive data, but the effects are modest, so we treat it as a complement rather than a driver.
See the research →Effective for hyperhydration and fuller pumps. The tradeoff is practical, not scientific: glycerol powder attracts moisture and can clump, so we weigh formulation quality against the benefit.
See the research →A fenugreek-derived peptide with promising early human data for muscle protein synthesis and recovery. The evidence base is still small and the raw-material cost is high, so for now we’d rather invest those dollars in ingredients with deeper support.
See the research →An ecdysteroid (a plant compound) sold as a natural muscle-builder. The anabolic hype traces back to cell and rodent studies — and the human trials that do exist showed no measurable effect on muscle, strength, or body composition. Without meaningful human evidence, it doesn’t meet our bar, so we don’t use it.
A plant steroid pitched as a “natural anabolic.” The excitement rests on one small human study plus animal and cell data — not a replicated body of evidence. On top of that, testing has repeatedly found supplements that don’t contain the ecdysterone they claim. Until the human results are reproduced at scale and the raw material can be trusted, it doesn’t meet our bar.
Sold for recovery and muscle growth on the premise that it delivers IGF-1. Controlled human trials haven’t shown meaningful performance or body-composition benefits, and any IGF-1 taken orally is broken down in digestion. It’s also flagged by anti-doping bodies. No real upside, real downside — so we skip it.
The amino acids themselves matter — but sold on their own, BCAAs are largely redundant. To build muscle you need the full set of essential amino acids, which a normal protein intake already provides. Spending on standalone BCAAs buys little that whole protein or EAAs don’t already cover, so we don’t build around them.
Cordyceps, lion’s mane, and similar mushrooms are interesting compounds, but the human evidence for gym performance, strength, or endurance is thin and inconsistent, and blends rarely disclose meaningful doses. We’d rather wait for real data than sell hope in a proprietary blend.
SEE IT ON THE LABEL
Every INTELLEKT product is fully disclosed, clinically dosed, and built from ingredients that earn their place. No blends, no fillers, no hype.
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