PlainVitamins

Best-Rest Formula

by Pure Encapsulations · capsule · 120 capsules

  • On the market (NIH)
  • UPC 7 66298 01096 0
  • DSLD label 293903
  • Serving 2 capsules
  • 60 servings

Best-Rest Formula by Pure Encapsulations lists 9 ingredients, 9 with an amount per serving of 2 capsules, such as 3.3 mg of vitamin B6, 1 mg of melatonin, 300 mg of gamma-aminobutyric acid and 50 mg of suntheanine. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2023.

What is in Best-Rest Formula?

Each row as the label prints it, per serving of 2 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Best-Rest Formula: Supplement Facts rows against the market (DSLD label 293903, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B6as Pyridoxal 5-Phosphate3.3 mg194%Vitamin B6 in Best-Rest Formula against 15,277 products3.3 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg3.3 mg

63% of 15,277 products listing vitamin B6 give more (median 6 mg).

Melatonin1 mgMelatonin in Best-Rest Formula against 1,557 products1 mg per serving; the middle half of products list 2 mg to 5 mg, the median 3 mg.1 mg

80% of 1,557 products listing melatonin give more (median 3 mg).

Gamma-Aminobutyric Acid300 mgGABA in Best-Rest Formula against 744 products300 mg per serving; the middle half of products list 80 mg to 400 mg, the median 100 mg.300 mg

Higher than 71% of 744 products listing GABA (median 100 mg).

Suntheanineas L-Theanine50 mgTheanine in Best-Rest Formula against 1,602 products50 mg per serving; the middle half of products list 90 mg to 200 mg, the median 100 mg.50 mg

79% of 1,602 products listing theanine give more (median 100 mg).

Valerian Root Extractas Valerenic Acidstandardized to contain 0.8% valerenic acids400 mgValerian in Best-Rest Formula against 647 products400 mg per serving; the middle half of products list 80 mg to 450 mg, the median 200 mg.400 mg

Higher than 71% of 647 products listing valerian (median 200 mg).

Lemon Balm Leaf Extractas Rosmarinic Acidstandardized to contain 5% rosmarinic acid150 mgLemon balm in Best-Rest Formula against 475 products150 mg per serving; the middle half of products list 50 mg to 200 mg, the median 100 mg.150 mg

Higher than 60% of 475 products listing lemon balm (median 100 mg).

Hops Aerial Parts Extract150 mgHops in Best-Rest Formula against 342 products150 mg per serving; the middle half of products list 50 mg to 150 mg, the median 75 mg.150 mg

Higher than 74% of 342 products listing hops (median 75 mg).

Passionflower Aerial Parts Extractas Vitexinsstandardized to contain 3.5% vitexins100 mgPassionflower in Best-Rest Formula against 562 products100 mg per serving; the middle half of products list 40 mg to 200 mg, the median 100 mg.100 mg

38% of 562 products listing passionflower give more (median 100 mg).

Chamomile Flower Extractas Matricaria recutita Flower Extract100 mgChamomile in Best-Rest Formula against 350 products100 mg per serving; the middle half of products list 30 mg to 150 mg, the median 75 mg.100 mg

Higher than 56% of 350 products listing chamomile (median 75 mg).

Source: NIH ODS Dietary Supplement Label Database, label 293903 (entered August 23, 2023), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 80% of the 1,557 products that print an amount of melatonin list more than its 1 mg of melatonin (median 3 mg).
  • 79% of the 1,602 products that print an amount of theanine list more than its 50 mg of suntheanine (filed by NIH under theanine) (median 100 mg).

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Best-Rest Formula's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Recommendations: As a dietary supplement, take 2 capsules 30-60 minutes before bedtime.
Warnings
Warning: see side panel Use only if safety seal is intact.
Keep out of the reach of children.
Warning: Consult a healthcare professional if you are experiencing long-term sleep difficulties, before use in children, before use in pregnant or lactating women, those with a medical condition, and those taking medication. This product may be contraindicated for individuals taking corticosteroids.
Do not drive or operate machinery when taking melatonin.
Warning: Consult a healthcare professional if you are experiencing long-term sleep difficulties, before use in children, before use in pregnant or lactating women, those with a medical condition, and those taking medication.
Allergens and what it does not contain
Certified Gluten-Free by the Gluten-Free Certification Organization, www.gluten.org
Gluten-free, Non-GMO & Hypoallergenic
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 293903.

What else is on the label?

Other ingredients: Cellulose, Water, Plant Fiber, Gum Arabic, Maltodextrin, Ascorbyl Palmitate, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GFCO.org (Gluten-Free Certification Organization). Listed with: Certified gluten-free (GFCO) (a seal is the label's claim; the certifier's own list confirms it).

How many labels does Best-Rest Formula have?

4 labels are on file under this name since January 7, 2019: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 293903 (current) Entered August 23, 2023 · on the market · 120 capsules · UPC 7 66298 01096 0
  2. Label 219274 Entered May 22, 2020 · off the market March 15, 2020 · 60 capsules · UPC 7 66298 01097 7
  3. Label 184359 Entered February 25, 2019 · on the market · 60 capsules · UPC 7 66298 01097 7
  4. Label 184356 Entered January 7, 2019 · off the market July 21, 2022 · 120 capsules · UPC 7 66298 01096 0

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Pure Encapsulations (manufacturer), Sudbury, MA. All Pure Encapsulations products.

Where next?