Hi-Tech Pharmaceuticals | Sleep RxHi-Tech Pharmaceuticals
- SuppVault Score
- 95/100

Hi-Tech Pharmaceuticals
Classic sedative botanicals plus L-theanine in a bedtime tablet
$14.95 $29.92Scored on what's in the tub, not the marketing.
The label is the formula. We score it either way.
Hi-Tech Pharmaceuticals Sleep Rx is a multi-pathway bedtime formula combining sedative botanicals, relaxation support, and a melatonin-related compound. Its 610 mg proprietary blend is designed to ease tension, quiet mental overactivity, and support sleep initiation, but exact ingredient doses are undisclosed.
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Kava Extract | — | † |
| L-Theanine | — | † |
| Melatonin | — | † |
| Paeonia lactiflora | — | † |
| Valerian Extract | — | † |
| Wild Lettuce Extract | — | † |
| Ziziphus spinosa Extract | — | † |
† Daily Value (DV) not established for this ingredient.
Hi-Tech Pharmaceuticals publishes test results from independent third-party labs. Svpplements links to the manufacturer’s data — we don’t test products ourselves.
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Sleep Rx is built around calming botanicals and a melatonin-related ingredient, but it does not provide magnesium support. Adding magnesium glycinate can complement the formula by supporting neuromuscular relaxation and helping users whose nighttime tension has a muscular component as well as a mental one.
Take in the evening with dinner or 30-60 minutes before bed alongside Sleep Rx if tolerated well
Glycine pairs well with sleep-focused products because it supports pre-sleep relaxation and can make bedtime feel smoother without adding a stimulant-sedative clash. It complements Sleep Rx especially well when the goal is a more complete nighttime stack without piling on more heavy botanicals.
Take 30-60 minutes before bed, with or near the Sleep Rx serving
For athletes or hard trainers, a ZMA product can pair well with Sleep Rx by adding zinc and magnesium support that the Sleep Rx formula does not include. This creates a more recovery-oriented nighttime routine while Sleep Rx handles the calming and sleep-initiation side.
Take before bed, ideally spaced from calcium-heavy meals if using a classic ZMA formula
If nighttime recovery is part of the goal, casein complements Sleep Rx by supporting overnight amino acid availability while the sleep formula handles relaxation and sleep onset. This pairing makes particular sense for lifters training late and trying to improve both recovery nutrition and bedtime consistency.
Use casein 30-60 minutes before bed; take Sleep Rx about 30 minutes before sleep
If you want simple, transparent melatonin-only sleep support, the single-ingredient option is easier to dose.
Sleep Rx has a broader multi-pathway formula for users needing more than a single-herb bedtime product.
More modern sleep formulas often win on transparency and category-specific dosing clarity.
Choose Sleep Rx for compact tablets or Somatomax for a different nighttime support style.
Side-by-side against the closest competitors. Score reflects clinical dosing, transparency, and testing.
Hi-Tech Pharmaceuticals | Sleep RxHi-Tech Pharmaceuticals
HI TECH PHARMACEUTICALS, INC. | Hi-Tech Melatonin | 60 TabletsHI TECH PHARMACEUTICALS, INC.
If you want simple, transparent melatonin-only sleep support, the single-ingredient option is easier to dose.
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HI TECH PHARMACEUTICALS, INC. | Hi-Tech Valerian-RXHI TECH PHARMACEUTICALS, INC.
Sleep Rx has a broader multi-pathway formula for users needing more than a single-herb bedtime product.
Compare side-by-side →
Blackstone Labs | BSL Anesthetized | 25 ServingsBlackstone Labs
More modern sleep formulas often win on transparency and category-specific dosing clarity.
Compare side-by-side →Comparison data combines live storefront pricing with our SuppVault analysis. Competitor scores reflect public-label data; manufacturer-side changes may not be reflected in real time.
Hi-Tech Pharmaceuticals Sleep Rx is an old-school multi-pathway sleep formula built around sedative botanicals, relaxation support, and a melatonin-related compound. The formulation philosophy is straightforward: instead of relying on one ingredient to force the issue, it combines several traditional and modern sleep-support actives that target nervous system tone, perceived stress, and sleep initiation from different angles. On paper, that strategy makes sense. Where the formula becomes harder to evaluate clinically is transparency: all seven actives are packed into a 610 mg proprietary blend per 2-tablet serving, so individual doses are hidden.
The disclosed actives are Valerian extract, Kava extract, L-Theanine, Paeonia lactiflora, Ziziphus spinosa extract, Wild Lettuce extract, and N-acetyl-5-methoxytryptamine. Valerian is the first-listed ingredient, which matters because ingredients in a proprietary blend are listed in descending order by weight. Valerian is one of the best-known traditional sleep botanicals, commonly used for its calming, sedative profile and its interaction with GABAergic signaling. In research and practice, valerian extracts are typically used in the several-hundred-milligram range, often around 300-900 mg depending on standardization. Because the entire blend is only 610 mg, valerian may be meaningfully dosed relative to the rest of the formula, but exact assessment is impossible.
Kava follows valerian. Kava is traditionally used for anxiolytic and tension-reducing effects, with kavalactones influencing GABA-related activity and helping reduce the “mentally revved up” state that often blocks sleep onset. It is a logical inclusion for users whose sleep issues are driven more by nervous tension than by pure circadian disruption. That said, clinically meaningful kava dosing is usually judged by kavalactone yield, and that data is not disclosed here.
L-Theanine is the most evidence-backed ingredient in the formula based on the available knowledge base. It is a non-protein amino acid that crosses the blood-brain barrier, increases alpha-wave activity, and modulates glutamate signaling at AMPA, NMDA, and kainate receptors while also supporting GABA, serotonin, and dopamine tone. Clinically, theanine is most often used at 100-400 mg, with strong support for stress reduction, anxiety reduction, and improved sleep quality. The challenge here is again dose transparency: because it sits behind valerian and kava in a 610 mg blend, it may land below the more commonly studied standalone range.
Paeonia lactiflora, Ziziphus spinosa extract, and Wild Lettuce extract round out the botanical sedation profile. These are classic traditional calming herbs often used to promote relaxation, reduce restlessness, and complement stronger core sleep ingredients. Their presence suggests the formulator wanted breadth of effect rather than a single-mechanism product. N-acetyl-5-methoxytryptamine, listed last, is a melatonin-related compound intended to support the transition into sleep. Since it is last in the blend, it is likely present in a relatively small amount, though melatonin-active compounds are often effective at low milligram or sub-milligram dosing.
The real synergy here is valerian plus kava plus theanine: valerian and kava lean more sedative and anxiolytic, while theanine helps quiet the overactive, stress-driven mental state that makes falling asleep harder. Add the melatonin-related component, and the formula is clearly designed to help users feel calmer before bed and more ready to drift off. The downside is honesty-critical: this is not a transparent formula. The product uses a 610 mg proprietary blend, and several of these ingredients have meaningful dose-dependent effects in the literature. Compared with modern full-disclosure sleep formulas, that is a clear limitation.
What should you expect? On day 1, the most likely experience is a gradual reduction in mental tension and a heavier, more sedative bedtime feel within roughly 30-60 minutes of taking it. Over 2-4 weeks, users who respond well to valerian-, kava-, and theanine-based formulas may experience a more reliable pre-sleep routine and smoother sleep initiation, but this is not the kind of formula where cumulative benefits are easy to predict ingredient by ingredient because the label does not disclose exact doses.
L-theanine is thought to promote a calmer pre-sleep brain state by modulating excitatory neurotransmission, especially glutamatergic signaling, while supporting alpha-frequency activity associated with relaxed wakefulness. This does not necessarily force sedation, but it can reduce the subjective sense of mental overactivity that delays sleep onset. In mixed sleep formulas, theanine often functions as the 'mental deceleration' component rather than the primary sedative driver. Its value is highest in users whose sleep problems are linked to tension, rumination, or late-evening cognitive arousal.
Valerian is traditionally used as a bedtime botanical because its constituent profile appears to interact with inhibitory nervous system pathways related to GABA signaling. Mechanistically, this may lower perceived restlessness and decrease resistance to sleep initiation rather than producing a stimulant-to-sedative crash. The clinical challenge is extract variability, because different preparations can differ substantially in active constituent density. In proprietary blends, valerian's placement high on the label suggests meaningful formula weight, but not confirmed clinical dosing.
Kava is best understood as an anxiolytic-style botanical that may help users transition out of a mentally keyed-up, stress-dominant state before bed. Its primary role in a sleep formula is often not direct sleep architecture manipulation, but reduction of the tension and vigilance that interfere with sleep onset. That makes it especially relevant when insomnia is driven by psychological activation rather than poor physical fatigue. Because kava carries meaningful safety considerations, context, quality, and user suitability matter more than with lighter relaxation ingredients.
A melatonin-related compound is included to support the circadian and sleep-onset side of the formula, complementing the calming botanicals. Mechanistically, this type of ingredient is typically intended to reinforce the internal 'night signal,' making the transition toward sleep more biologically favorable. In multi-ingredient products, that gives users both a psychological unwinding axis and a timing/sleep-initiation axis. The outcome is usually most noticeable when taken consistently at the same pre-bed window.
Verified athletes can view NCAA, WADA, and high-school compliance status for this product.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.
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