Reference Line

CalmRoot Blend

Evidence grade: D (41/100)

The score (0–100) is a sample-size-weighted average of each ingredient's strongest study, where study quality is ranked RCT(4) > cohort(3) > case(2) > preclinical(1) and bigger samples count more (with diminishing returns). Bands: A ≥85, B ≥70, C ≥55, D ≥40, else F. Ingredients with no study are excluded — an absent study is never scored as “bad.”

Weighted aggregate of each ingredient's strongest evidence (study quality × sample size). 3 ingredients.

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Evidence at a glance

These are simple counts rolled up from the studies below. They describe how much evidence exists and how strong it is — not whether the product works. Ingredients with no indexed study are reported as insufficient, never scored as “bad.”

2Ingredients evidenced

Ingredients with at least one gradeable study (1 more had insufficient indexed evidence).

2Studies cited

Every gradeable study record in the curated ledger behind this product. Predatory / non-indexed sources are excluded by design.

60Participants

Total human sample size (n) summed across the cited studies. Bigger totals mean more people were studied — a rough measure of evidence weight, not of effectiveness.

CaseStrongest study

The highest-quality study design present anywhere in this product's evidence: Case series / small trial. The quality ladder is RCT > cohort > case > preclinical.

Study mix:RCT: 0Cohort: 0Case: 1Preclinical: 1

Per-ingredient evidence

Studies are ordered strongest-first. Study quality is ranked RCT > cohort > case > preclinical; ties go to the larger sample size (n). An ingredient with no indexed study is marked Insufficient — never scored as “bad.”

2 studies shown

Ashwagandha

Strongest evidence: Case series / small trial, n=60

Case

Grade	n	Study	Finding
Case	60	Ashwagandha root extract on stress and anxiety: randomized studyMedicine (Baltimore) · 2026-03-05	Reduced perceived stress and serum cortisol over 8 weeks; small sample.

L-Theanine

Strongest evidence: Preclinical (in vitro / animal), n=0

Preclinical

Grade	n	Study	Finding
Preclinical	0	L-theanine effects on stress and cognition: pilot trialNutrients · 2026-03-05	Mechanistic and animal data on alpha-wave / GABA pathways; limited human data.

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Not medical advice. Grades reflect the quality and quantity of published evidence for an ingredient — not a health claim, endorsement, or guarantee of effect. An absent study is reported as insufficient, never as proof a thing does or does not work. Talk to a clinician before changing any regimen.