PlainVitamins

Best Fully Active B Complex

by Doctor's Best · capsule · 30 veggie caps

  • Off the market since May 2016 (NIH)
  • UPC 7 53950 00299 9
  • DSLD label 24477
  • Serving 1 to 3 capsules; amounts per 1 capsule
  • 30 servings

Best Fully Active B Complex by Doctor's Best lists 9 ingredients, 9 with an amount per serving of 1 capsule, such as 40 mg of vitamin C, 60 mg of thiamine, 75 mg of vitamin B2 and 50 mg of vitamin B3. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2013.

What is in Best Fully Active B Complex?

Each row as the label prints it, per serving of 1 capsule. 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 Fully Active B Complex: Supplement Facts rows against the market (DSLD label 24477, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid40 mg67%Vitamin C in Best Fully Active B Complex against 18,583 products40 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg40 mg

81% of 18,583 products listing vitamin C give more (median 100 mg).

Thiamineas Thiamine Hydrochloride, Vitamin B1Thiamin (Form: as {thiamin} hydrochloride) (Alt. Name: Vit. B1)60 mg4,000%Thiamin in Best Fully Active B Complex against 9,830 products60 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg60 mg

Higher than 91% of 9,830 products listing thiamin (median 5 mg).

Vitamin B2as Riboflavin, Riboflavin 5-PhosphateVitamin B2 (Form: as riboflavin, and riboflavin-5-phosphate)75 mg4,412%Riboflavin in Best Fully Active B Complex against 9,824 products75 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg75 mg

Higher than 94% of 9,824 products listing riboflavin (median 4 mg).

Vitamin B3as Niacin, NiacinamideVitamin B3 (Form: as Niacin, and Niacinamide)50 mg250%Niacin in Best Fully Active B Complex against 12,413 products50 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg50 mg

Higher than 75% of 12,413 products listing niacin (median 20 mg). 1.4 times the adult UL a day.

Vitamin B6as Pyridoxal 5-Phosphate, Pyridoxine HydrochlorideVitamin B6 (Form: as pyridoxine hydrochloride, and pyridoxal-5-phosphate)50 mg2,500%
(6S)-5-Methyltetrahydrofolate(6S)-5-Methyltetrahydrofolate (Alt. Name: MTHF) Note: elemental400 mcg100%Folate in Best Fully Active B Complex 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).

(6S)-5-Methyltetrahydrofolic Acid, Glucosamine Salt(6S)-5-Methyltetrahydrofolic Acid, Glucosamine Salt Note: vegetarian source800 mcg5-methyltetrahydrofolate glucosamine in Best Fully Active B Complex against 176 products800 mcg per serving; the middle half of products list 300 mcg to 800 mcg, the median 593 mcg.800 mcg

Higher than 67% of 176 products listing 5-methyltetrahydrofolate glucosamine (median 593 mcg).

Vitamin B12as MethylcobalaminVitamin B12 (Form: as Methylcobalamin)1,000 mcg16,667%Vitamin B12 in Best Fully Active B Complex against 14,425 products1,000 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg1,000 mcg

Higher than 89% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotin600 mcg200%Biotin in Best Fully Active B Complex against 9,447 products600 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg600 mcg

Higher than 81% of 9,447 products listing biotin (median 200 mcg).

Pantothenic Acidas Calcium PantothenatePantothenic Acid (Form: as Calcium Pantothenate)100 mg1,000%Pantothenic Acid (Vitamin B5) in Best Fully Active B Complex against 10,060 products100 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg100 mg

Higher than 86% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Source: NIH ODS Dietary Supplement Label Database, label 24477 (entered August 23, 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:

  • Its 60 mg of thiamin is higher than 91% of the 9,830 thiamin products that print an amount; 822 list more.
  • Its 75 mg of vitamin B2 (filed by NIH under riboflavin) is higher than 94% of the 9,824 riboflavin products that print an amount; 486 list more.
  • At 1 serving a day, the most its directions give, the label lists 50 mg of niacin, 1.4 times the adult Tolerable Upper Intake Level.

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 Fully Active B Complex'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
Suggested Use: Take 1 capsule daily after meals (up to 3 capsules under physician supervision). Children ages 9 -18, take 1 capsule daily. Not intended for children under 9 years.

Source: label statements in DSLD label 24477.

What else is on the label?

Other ingredients: Modified Cellulose, Cellulose, Ascorbyl Palmitate, Medium Chain Triglycerides, Silicon Dioxide.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Quatrefolic(R); Vegan(TM).

How many labels does Best Fully Active B Complex have?

One label is on file, entered on August 23, 2013.

  1. Label 24477 (current) Entered August 23, 2013 · off the market May 2, 2016 · 30 veggie caps · UPC 7 53950 00299 9

DSLD also links this label to: Fully Active B Complex (image difference, same product), Fully Active B Complex (package size difference, same product), Fully Active B Complex with Quatrefolic (image difference, same product), Fully Active B Complex with Quatrefolic (package size difference, same product), Fully Active B Complex with Quatrefolic (package size difference, same product), Fully Active B Complex (image difference, same product), Fully Active B Complex (package size difference, same product), Fully Active B Complex with Quatrefolic (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 Doctor's Best, Inc. (distributor), San Clemente, CA. All Doctor's Best products.

Where next?