PlainVitamins

Mega B-Complex

by Irwin Naturals · softgel capsule · 60 liquid softgels

  • Off the market since March 2015 (NIH)
  • UPC 7 10363 57979 1
  • DSLD label 44835
  • Serving 1 liquid softgel
  • 60 servings

Mega B-Complex by Irwin Naturals lists 12 ingredients, 10 with an amount per serving of 1 liquid softgel, such as 30 mg of thiamine, 30 mg of riboflavin, 30 mg of niacin and 30 mg of vitamin B6; 2 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on April 24, 2015.

What is in Mega B-Complex?

Each row as the label prints it, per serving of 1 liquid softgel. 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).

Mega B-Complex: Supplement Facts rows against the market (DSLD label 44835, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamineas Thiamine Hydrochloride, Vitamin B1Thiamin (Form: as Thiamine Hydrochloride) (Alt. Name: B1)30 mg2,000%Thiamin in Mega B-Complex against 9,830 products30 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg30 mg

Higher than 78% of 9,830 products listing thiamin (median 5 mg).

Riboflavinas Vitamin B230 mg1,765%Riboflavin in Mega B-Complex against 9,824 products30 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg30 mg

Higher than 82% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Niacinamide, Vitamin B3Niacin (Form: B3, as Niacinamide)30 mg150%Niacin in Mega B-Complex against 12,413 products30 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg30 mg

Higher than 63% of 12,413 products listing niacin (median 20 mg).

Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine Hydrochloride)30 mg1,500%Vitamin B6 in Mega B-Complex against 15,277 products30 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg30 mg

Higher than 82% of 15,277 products listing vitamin B6 (median 6 mg).

Folic Acidas Vitamin B9400 mcg100%Folate in Mega 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).

Vitamin B12as MethylcobalaminVitamin B12 (Form: as Methylcobalamin)1,000 mcg16,667%Vitamin B12 in Mega 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).

Biotinas Vitamin B7300 mcg100%Biotin in Mega B-Complex against 9,447 products300 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg300 mcg

Higher than 53% of 9,447 products listing biotin (median 200 mcg).

Pantothenic Acidas D-Calcium Pantothenate, Vitamin B5Pantothenic Acid (Form: as D-Calcium Pantothenate) (Alt. Name: B5)30 mg300%Pantothenic Acid (Vitamin B5) in Mega B-Complex against 10,060 products30 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg30 mg

Higher than 66% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Medium Chan Triglycerides (MCT) oil455 mgMedium Chain Triglycerides in Mega B-Complex against 559 products0.455 g per serving; the middle half of products list 0.5 g to 5 g, the median 1.5 g.0.455 g

79% of 559 products listing medium chain triglycerides give more (median 1.5 g).

N, N-Dimethylglycineas B1530 mgDimethylglycine in Mega B-Complex against 157 products30 mg per serving; the middle half of products list 80 mg to 300 mg, the median 125 mg.30 mg

85% of 157 products listing dimethylglycine give more (median 125 mg).

BioPerine Complex6 mg
Bioperine Black Pepper extractas PiperineBioperine Black Pepper extract (Form: 95% Piperine) PlantPart: fruitin the blend, no amount given
Ginger extractas GingerolsGinger extract (Form: 5% Gingerols) PlantPart: rootin the blend, no amount given

Source: NIH ODS Dietary Supplement Label Database, label 44835 (entered April 24, 2015), 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient; 2 ingredients sit inside a blend, so their amounts cannot be compared.

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 Mega 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
Full Disclosure Ingredient Panel DIRECTIONS: (Adult) Take One (1) Liquid Soft-Gel Daily.
Warnings
Check with your doctor before using this product if you are using medication or have any medical conditions. Do not use if you may become pregnant, are pregnant or nursing.
Do not exceed recommended daily intake.
Not intended for sue by persons under 18. KEEP OUT OF REACH OF REACH OF CHILDREN.
Contains: Soy, Tree Nuts (palm kernel)
Usage Warnings: Do not use if safety seal is broken.
Allergens and what it does not contain
No preservatives added.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 44835.

What else is on the label?

Other ingredients: Gelatin, purified Water, Glycerin, Beeswax, Soy Lecithin, Caramel color, Silicon Dioxide, Titanium Dioxide.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): QUALITY GUARANTEED PASS.

How many labels does Mega B-Complex have?

One label is on file, entered on April 24, 2015.

  1. Label 44835 (current) Entered April 24, 2015 · off the market March 30, 2015 · 60 liquid softgels · UPC 7 10363 57979 1

DSLD also links this label to: Advanced Absorption Mega B-Complex (image difference, same product), Advanced Absorption Mega B-Complex (image difference, same product), Advanced Absorption Mega B-Complex (image 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 Irwin Naturals (manufacturer, distributor), Los Angeles, CA. All Irwin Naturals products.

Where next?