BioStacks
Natrol

Sleep 'n Restore

1 Tablet · 20 servings · $0.64/serving

47 / 100Average

Best for

Score Breakdown

Formulation
76
Safety
62
Final score
47/100

Ingredients (6)

Melatonin

100%

Dose

3 mg

Target

0.5–5 mg

Form

Vitamin E

50%

Dose

25 mg

Target

50–268 mg

Form

Premium

Valerian extract

33%

Dose

100 mg

Target

300–600 mg

Form

Grape Seed Extract

17%

Dose

25 mg

Target

150–600 mg

Form

L-Glutamine

16%

Dose

800 mg

Target

5000–15000 mg

Form

Other Ingredients (11)

CarboxymethylcelluloseThickener

Carboxymethylcellulose was the second emulsifier (with polysorbate 80) in Chassaing et al. 2015 (Nature, PMID 25731162), which showed mucus-barrier thinning, a microbiota shift toward pro-inflammatory species, low-grade inflammation, and metabolic syndrome in mice. Chassaing 2022 (Gastroenterology, PMID 34774538) tested CMC directly in a randomized controlled human feeding trial and found reduced microbial diversity and bacterial encroachment into the normally sterile mucus layer in a susceptible subset of participants. EFSA's 2018 re-evaluation could not establish a safe level due to data gaps. For a purely textural excipient, the gut-barrier risk profile is unfavorable when safer thickeners are widely available.

MaltodextrinBinder

Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

EthylcelluloseCoating

A cellulose-derived polymer used for film coating and binding.

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

Gum AcaciaBinder

Natural plant gum (acacia) used as a binder, stabilizer, and emulsifier in foods and supplements

HypromelloseCapsule

Plant-derived capsule material from cellulose

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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.