Plain-language guides to nootropic supplements — what each ingredient is, what to look for when buying it, and every product HighIQ Nootropics carries in that category.
Latest Guide · Study Stack
A realistic, evidence-aware study stack built around timelines — what to start months before exams, what helps on the day, what to use when exam stress hits, and the basics no supplement can replace.
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Lion's Mane
A plain-language guide to the mushroom behind nearly every memory-and-focus supplement list — what the research actually looks at, fruiting body vs. mycelium, how much people take, how long it takes, and how to read a label.
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Bacopa Monnieri
Bacopa is one of the most-studied herbal nootropics and one of the slowest — here's what it is, how long it actually takes, the right dose, how to avoid the stomach upset, and how to read a bacoside percentage.
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Rhodiola Rosea
An adaptogenic root from cold, high-altitude terrain, reached for during stretches of stress and fatigue — what 'adaptogen' actually means, why the rosavin-to-salidroside ratio matters, how to time it, and how to avoid the wrong species.
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L-Theanine
L-Theanine has one of the strongest safety records and simplest use cases of any nootropic — how it works, the caffeine ratio people use, whether it helps with sleep, how long it takes, and why Suntheanine shows up on so many labels.
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Tongkat Ali
Tongkat Ali potency varies enormously between raw root and concentrated extract — what the research looks at, why the extraction ratio and eurycomanone content matter more than milligrams, how people cycle it, and what to watch for.
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Shilajit
Shilajit is mined, not grown, which makes purity the whole buying decision — what it is, what the research looks at, how to take resin, resin vs. capsules vs. powder, why home 'purity tests' don't prove much, and what to check before you buy.
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Lion's Mane vs. Bacopa Monnieri
The two most popular long-term memory supplements work on different timelines, have different evidence behind them, and suit different people — a side-by-side comparison, plus whether it makes sense to take both.
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Tongkat Ali vs. Shilajit
Both are traditional men's-health tonics studied in relation to energy and testosterone, but one is a rainforest root and the other a mountain resin — how they compare on evidence, dosing, safety, and what to check before buying.
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Rhodiola Rosea vs. L-Theanine
Both get recommended for stress, but they work in opposite directions — Rhodiola for the drained, fatigued kind of stress and L-Theanine for the wired, tense kind. How to tell which you need, and how people combine them.
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L-Theanine + Caffeine
The simplest, best-studied nootropic stack there is — why caffeine and L-Theanine work well together, the ratios people use, how to dose it with coffee or tea, timing, tolerance, and who should skip it.
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