EVIDENCE-BASED SUPPLEMENT SCORING
6.0/10
AVERAGE

Confidence: 76%

(20 Days) Heblis Good-Night S 20 Sticks, Stress Relief Supplement, Sleep Supplement, GABA, L-Theanine, Magnesium, Plant Based Amino-Acid

(20 Days) Heblis Good-Night S 20 Sticks, Stress Relief Supplement, Sleep Supplement, GABA, L-Theanine, Magnesium, Plant Based Amino-Acid

B0BXGS2BZY

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Decision summary

CONSIDERAVERAGE

A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.

Best for

Buyers comparing price and availability and okay with a middle-of-the-pack option.

Consider another option if

You prefer fully transparent formulas over blends and ambiguous labeling.

Score breakdown

Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.

Dosage quality

8.1/10

Generally solid dosing

Checks whether labeled ingredient amounts fall within clinically studied ranges (not just regulatory minimums). Low/0 can reflect under-dosing or missing amounts (e.g., proprietary blends).

Score summary

Theanine: dose within clinically studied range (evidence A). The main limitation is that proprietary blend prevents independent dose verification.

Strengths

Theanine: dose within clinically studied range (evidence A)
Theanine: high-bioavailability form declared (L Theanine)
Tryptophan: high-bioavailability form declared (L Tryptophan)

Weaknesses

Proprietary blend prevents independent dose verification
Formula coherence is weak: diluted, decorative or overly complex
Tryptophan: below clinically studied range

Final verdict

A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.

Ingredient Analysis & Evidence

A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.

✔ Clinically effective dose with moderate supporting evidence

A clear strength: Dose is strong and within effective ranges. The declared form supports strong absorption.

Scientific evidence

RCT

Owen et al. RCT theanine and caffeine on cognitive performance

Nutritional Neuroscience • 2008

PMID: 18681988.0

RCT

Lu et al. RCT L-theanine and stress response in healthy adults

Nutritional Neuroscience • 2004

PMID: 16930802.0

ℹ Dose is below the optimal range and supported by limited evidence

Supports the formula, but not a major driver: Dose is directionally useful, but not a standout strength. The declared form is acceptable, but not among the best-absorbed options.

Scientific evidence

RCT

Byun et al. RCT GABA and sleep efficacy

Journal of Psychiatric Research • 2018

PMID: 25540654.0

⚠ Dose is below commonly used clinical ranges

One of the weaker points: Dose is likely below clinically useful levels. The declared form supports strong absorption.

Clinical dosing guidance

Based on established dosing ranges used in clinical practice.

Min effective: 250 mgOptimal: 500 mgUpper: 2000 mgGrade: B

⚠ Strong evidence exists, but dose is below effective threshold

One of the weaker points: Dose is likely below clinically useful levels. The label does not specify the form, so absorption quality cannot be verified.

Scientific evidence

Systematic review

Boyle et al. systematic review magnesium and subjective anxiety

Nutrients • 2017

PMID: 28145455.0

Meta-analysis

Dong et al. meta-analysis magnesium intake and type 2 diabetes risk

Diabetes Care • 2011

PMID: 21868780.0

(20 Days) Heblis Good-Night S 20 Sticks, Stress Relief Supplement, Sleep Supplement, GABA, L-Theanine, Magnesium, Plant Based Amino-Acid

(20 Days) Heblis Good-Night S 20 Sticks, Stress Relief Supplement, Sleep Supplement, GABA, L-Theanine, Magnesium, Plant Based Amino-Acid

Warnings & notes

Important label or formulation details that may affect how this product should be interpreted.

i

Proprietary blend limits dose transparency

Exact ingredient amounts cannot be verified clearly.

Info

Formula design looks less coherent than stronger alternatives

The formulation appears less focused than better-built options.

Note
!

Tryptophan dose looks below clinically effective levels

Declared amount falls below ranges used in human trials.

Warning

Methodology

Read our methodology overview to understand how SuppScoreLab combines multiple scientific dimensions into one practical score.

View methodology →

This evaluation is based on the product label and declared Supplement Facts available at review time. It does not verify laboratory-tested composition, purity, or batch-level quality. This content is educational and not medical advice. Consult a qualified healthcare professional for personal health decisions. Affiliate disclosure: SuppScoreLab may earn a commission from qualifying Amazon links.

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