PlainVitamins

St. John's Forte

by Biotics Research Corporation · capsule · 60 capsules

  • On the market (NIH)
  • DSLD label 22215
  • Serving 2 capsules
  • 30 servings

St. John's Forte by Biotics Research Corporation lists 15 ingredients, 15 with an amount per serving of 2 capsules, such as 1.5 mg of thiamin, 1.7 mg of riboflavin, 20 mg of niacin and 2 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on June 25, 2013.

What is in St. John's Forte?

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).

St. John's Forte: Supplement Facts rows against the market (DSLD label 22215, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiaminas cocarboxylase chlorideThiamin (Form: as cocarboxylase chloride)1.5 mg100%Thiamin in St. John's Forte against 9,830 products1.5 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg1.5 mg

66% of 9,830 products listing thiamin give more (median 5 mg). Per day at the most servings: 3 mg.

Riboflavinas Riboflavin 5-PhosphateRiboflavin (Form: as Riboflavin-5-Phosphate)1.7 mg100%Riboflavin in St. John's Forte against 9,824 products1.7 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg1.7 mg

64% of 9,824 products listing riboflavin give more (median 4 mg). Per day at the most servings: 3.4 mg.

Niacinas NiacinamideNiacin (Form: as Niacinamide)20 mg100%Niacin in St. John's Forte against 12,413 products20 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg20 mg

46% of 12,413 products listing niacin give more (median 20 mg). Per day at the most servings: 40 mg. 1.1 times the adult UL a day.

Vitamin B6as Pyridoxal 5-PhosphateVitamin B6 (Form: as Pyridoxal-5-Phosphate)2 mg100%Vitamin B6 in St. John's Forte against 15,277 products2 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg2 mg

69% of 15,277 products listing vitamin B6 give more (median 6 mg). Per day at the most servings: 4 mg.

Folateas Calcium FolinateFolate (Form: as calcium folinate)400 mcg100%Folate in St. John's Forte against 7,022 products400 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.400 mcg

24% of 7,022 products listing folate give more (median 400 mcg). Per day at the most servings: 800 mcg.

Vitamin B12as MethylcobalaminVitamin B12 (Form: as Methylcobalamin)6 mcg100%Vitamin B12 in St. John's Forte against 14,425 products6 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg6 mcg

74% of 14,425 products listing vitamin B12 give more (median 36 mcg). Per day at the most servings: 12 mcg.

Biotin100 mcg33%Biotin in St. John's Forte against 9,447 products100 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg100 mcg

61% of 9,447 products listing biotin give more (median 200 mcg). Per day at the most servings: 200 mcg.

Pantothenic Acidas Calcium PantothenatePantothenic Acid (Form: as Calcium Pantothenate)10 mg100%Pantothenic Acid (Vitamin B5) in St. John's Forte against 10,060 products10 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg10 mg

52% of 10,060 products listing pantothenic acid (vitamin B5) give more (median 12 mg). Per day at the most servings: 20 mg.

Magnesiumas Magnesium GlycinateMagnesium (Form: as Magnesium Glycinate)25 mg6%Magnesium in St. John's Forte against 14,003 products25 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg25 mg

77% of 14,003 products listing magnesium give more (median 86 mg). Per day at the most servings: 50 mg.

ChromiumChromium Note: from vegetable culture100 mcg83%Chromium in St. John's Forte against 7,825 products100 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg100 mcg

47% of 7,825 products listing chromium give more (median 100 mcg). Per day at the most servings: 200 mcg.

St. John's WortSt. John's Wort PlantPart: buds and tops Note: standardized extract300 mgSt. John's Wort in St. John's Forte against 338 products300 mg per serving; the middle half of products list 250 mg to 450 mg, the median 300 mg.300 mg

37% of 338 products listing St. John's wort give more (median 300 mg). Per day at the most servings: 600 mg.

Inositolas RiceInositol (Form: from Rice)200 mgInositol in St. John's Forte against 4,042 products200 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.200 mg

Higher than 88% of 4,042 products listing inositol (median 30 mg). Per day at the most servings: 400 mg.

Damiana100 mgDamiana in St. John's Forte against 198 products100 mg per serving; the middle half of products list 50 mg to 450 mg, the median 100 mg.100 mg

49% of 198 products listing damiana give more (median 100 mg). Per day at the most servings: 200 mg.

Siberian Ginseng100 mgEleuthero in St. John's Forte against 726 products100 mg per serving; the middle half of products list 50 mg to 200 mg, the median 100 mg.100 mg

37% of 726 products listing eleuthero give more (median 100 mg). Per day at the most servings: 200 mg.

Cholineas Choline BitartrateCholine (Form: as Choline Bitartrate)25 mg5%*Choline in St. John's Forte against 4,738 products25 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg25 mg

59% of 4,738 products listing choline give more (median 40 mg). Per day at the most servings: 50 mg.

* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.

Source: NIH ODS Dietary Supplement Label Database, label 22215 (entered June 25, 2013), version 9.4.0. See the label on DSLD. 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:

  • At 2 servings a day, the most its directions give, the label lists 40 mg of niacin, 1.1 times the adult Tolerable Upper Intake Level.

The NIH database records 1 to 2 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?

The products whose ingredient lists overlap most with St. John's Forte'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
RECOMMENDATION: Two (2) capsules one to two times each day as a dietary supplement or as otherwise directed by a healthcare professional.
Warnings
KEEP OUT OF REACH OF CHILDREN
Not recommended for pregnant or lactating women.
Sealed with an imprinted safety seal for your protection.
Storage
Store in a cool, dry area.

Source: label statements in DSLD label 22215.

What else is on the label?

Other ingredients: Capsule shell, Magnesium Stearate.

How many labels does St. John's Forte have?

One label is on file, entered on June 25, 2013.

  1. Label 22215 (current) Entered June 25, 2013 · on the market · 60 capsules

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

Who makes it?

The label names BIOTICS RESEARCH CORP. (manufacturer), Rosenberg, Texas, 77471. All Biotics Research Corporation products.

Where next?