BioStacks
Best for
Ingredients (4)
Melatonin
100%Dose
3 mg
Target
0.5–5 mg
Form
—
L-Theanine
100%Dose
200 mg
Target
100–250 mg
Form
—
GABA (gamma-aminobutyric acid)
100%Dose
100 mg
Target
100–300 mg
Form
—
Dietary Fiber
20%Dose
2 g
Target
10–30 g
Form
—
Nutrition
Calories, macros & sodium.
- Sodium25 mg
Other Ingredients (11)
ErythritolSweetener
Witkowski et al. 2023 (Nature Medicine, PMID 36849732) reported elevated plasma erythritol associated with major adverse cardiovascular events (MACE) in two cohorts (n=4,000+), with in-vitro and ex-vivo evidence of enhanced platelet aggregation. Replication is ongoing; FDA and EFSA have not changed their safety positions, but the signal is real and the additive is purely cosmetic. Better-established concern: GI tolerance — single doses above ~50 g cause osmotic diarrhea. Lower threshold for children.
MaltitolSweetener
Worst GI tolerance of the common sugar alcohols — laxative effect at doses above ~10–15 g/serving in many adults; threshold is lower in children. Glycemic index (~52) is significantly higher than erythritol (0) or xylitol (~7) — meaningful blood glucose impact at typical serving sizes. The 'sugar-free' marketing claim masks real metabolic effects when consumed in quantity.
XylitolSweetener
A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at moderate doses (>10-20g/day), though supplement amounts are typically small. Extremely toxic to dogs — households with pets should store securely.
Fruit Juice (unspecified)Colorant
Juice or juice concentrate used primarily for natural color and flavor in gummies
Fruit Juice (unspecified)Colorant
Juice or juice concentrate used primarily for natural color and flavor in gummies
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Tapioca FiberFiber
Soluble fiber derived from tapioca, used as a bulking agent and prebiotic fiber filler
Fruit Juice (unspecified)Colorant
Juice or juice concentrate used primarily for natural color and flavor in gummies
How to Take It
Best taken in the evening
Take 30–60 minutes before bed. It's a circadian signal, not a daytime supplement. Fiber is easier on the stomach taken with food.
With food
Keep it away from medication and mineral supplements
On the label
Take 3 gummies 30 minutes before bedtime.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$24.95
Pricier than 70% of 50 GABA supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.