PlainVitamins

botanical

Periwinkle supplements

Half of the 10 periwinkle supplements in the NIH label database that print an amount list 1 g or less per serving; the middle half list 0.732 g to 1.12 g (DSLD version 9.4.0, January 2026).

Products listing it
4210 print an amount; 27 list it inside a blend without an amount
Median per serving
1 gmiddle half 0.732 g to 1.12 g

How much periwinkle do supplements contain?

The median product lists 1 g per serving. One in ten lists 0.091 g or less, one in ten 1.16 g or more. The amount printed most often is 1 g (3 products).

Products by amount of periwinkle per serving

10 products, log scale; extreme 0.2% at each end left out of the drawing.

Periwinkle: products by amount per serving0.03 g0.1 g0.3 g1 g
Periwinkle: products by amount per serving0.03 g0.1 g0.3 g1 g
Periwinkle: products by amount per serving0.03 g0.1 g0.3 g1 g
Periwinkle: products by amount per serving0.03 g0.1 g0.3 g1 g
Periwinkle: products by amount per serving0.03 g0.1 g0.3 g1 g
The amounts printed most often
Amount per servingProductsFor example
1 g3 Periwinkle Powder (TerraVita Premium Collection); Periwinkle 4:1 Extract Powder (TerraVita Premium Collection)
1.16 g3 Periwinkle Non-Alcohol (Hawaii Pharm); Periwinkle Alcohol Free (Hawaii Pharm); Periwinkle Alcohol Free (Herbal Terra)
0.01 g1 Memory Support - Periwinkle, Ginkgo Biloba And Sage 450 mg (TerraVita)
0.1 g1 Periwinkle/Red Clover Extract (MBi Nutraceuticals)
0.648 g1 Periwinkle (Herb Pharm)
0.983 g1 Periwinkle (Hawaii Pharm)

Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).

Which products list the most periwinkle?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

In which products and brands?

Products listing periwinkle by DSLD product type

Periwinkle by product typeBotanical9Botanical with Nutrients1
Periwinkle by product typeBotanical9Botanical with Nutrients1
Periwinkle by product typeBotanical9Botanical with Nutrients1
Periwinkle by product typeBotanical9Botanical with Nutrients1
Periwinkle by product typeBotanical9Botanical with Nutrients1

Brands listing it most: Hawaii Pharm (3), TerraVita Premium Collection (2), TerraVita (1), MBi Nutraceuticals (1), Herb Pharm (1), Nature's Answer (1), Herbal Terra (1).

Every product listing periwinkle

42 products, A to Z by name (page 1 of 1), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

Where next?