PlainVitamins

Periwinkle

by Herb Pharm · liquid · 1 fluid ounce

  • On the market (NIH)
  • UPC 0 90800 00006 5
  • DSLD label 307660
  • Serving 0.68 ml (30 Drops)
  • 44 servings

Periwinkle by Herb Pharm lists one ingredient: 648 mg of periwinkle extract per serving of 0.68 ml. Its current label entered the NIH Dietary Supplement Label Database on March 22, 2024.

What is in Periwinkle?

Each row as the label prints it, per serving of 0.68 ml. 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).

Periwinkle: Supplement Facts rows against the market (DSLD label 307660, January 2026 release)
IngredientAmount% DVAmong products listing it
Periwinkle Extractas Periwinkle Flowering Tip Extract, Periwinkle Leaf ExtractCertified Organic, Extraction rate 136 mg herb per 0.68 ml. Dry herb/Menstruum ratio: 1:5.648 mg

Source: NIH ODS Dietary Supplement Label Database, label 307660 (entered March 22, 2024), 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 2 to 3 servings 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?

6 products list the very same ingredients; the nearest amounts come first.

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
Suggested use Shake well before using Adults: Add 0.68 ml (30 drops) to 2 oz. of water or juice, 2 or 3 times per day. Best taken between meals.
Warnings
Caution: Seek expert medical advice before taking during pregnancy.
Keep out of the reach of children
Allergens and what it does not contain
Gluten-free
Storage
Store away from heat & light

Source: label statements in DSLD label 307660.

What else is on the label?

Other ingredients: Cane Alcohol, Water, Distilled.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): USDA Organic. Listed with: USDA Organic seal (a seal is the label's claim; the certifier's own list confirms it).

How many labels does Periwinkle have?

9 labels are on file under this name since August 23, 2013: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 307660 (current) Entered March 22, 2024 · on the market · 1 fluid ounce · UPC 0 90800 00006 5
  2. Label 220646 Entered June 24, 2020 · on the market · 1 Fluid Ounce · UPC 0 90800 00006 5
  3. Label 220230 Entered May 22, 2020 · off the market February 24, 2020 · 1 Fluid Ounce · UPC 0 90800 00006 5
  4. Label 58888 Entered April 22, 2016 · on the market · 4 fl. Oz. · UPC 0 90700 00203 9
  5. Label 58887 Entered April 22, 2016 · off the market January 27, 2020 · 1 fl. Oz. · UPC 0 90800 00006 5
  6. Label 39941 Entered November 25, 2014 · off the market March 8, 2016 · 1 fl. Oz. · UPC 0 90800 00006 5
  7. Label 24265 Entered May 23, 2014 · off the market May 8, 2014 · 8 fl. Oz.
  8. Label 32703 Entered April 25, 2014 · off the market November 5, 2014 · 1 fl. Oz. · UPC 0 90800 00006 5
  9. Label 24264 Entered August 23, 2013 · off the market March 8, 2016 · 4 fl. Oz. · UPC 0 90700 00203 9

DSLD also links this label to: Pipsissewa (package size difference, same product).

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

Who makes it?

The label names Herb Pharm (manufacturer), Williams, OR. All Herb Pharm products.

Where next?