Ultra B-100 Complex
by Mason Natural · tablet or pill · 100 tablets
- On the market (NIH)
- UPC 3 11845 06441 7
- DSLD label 244840
- Serving 1 tablet
- 100 servings
Ultra B-100 Complex by Mason Natural lists 17 ingredients, 13 with an amount per serving of 1 tablet, such as 100 mg of vitamin B1, 100 mg of vitamin B2, 100 mg NE of niacin and 100 mg of vitamin B6; 4 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on April 22, 2021.
What is in Ultra B-100 Complex?
Each row as the label prints it, per serving of 1 tablet. 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin B1as Thiamine HydrochlorideVitamin B1 (Form: as Thiamin Hydrochloride) | 100 mg | 8,330% | Higher than 94% of 9,830 products listing thiamin (median 5 mg). |
| Vitamin B2as Riboflavin | 100 mg | 7,690% | Higher than 96% of 9,824 products listing riboflavin (median 4 mg). |
| Niacinas NiacinamideNiacin (Form: as Niacinamide) | 100 mg NE | 630% | Higher than 88% of 12,413 products listing niacin (median 20 mg). 2.9 times the adult UL a day. |
| Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine Hydrochloride) | 100 mg | 5,880% | Higher than 96% of 15,277 products listing vitamin B6 (median 6 mg). |
| Folate | 667 mcg DFE | 170% | |
| Folic Acid | 400 mcg | ||
| Vitamin B12as CyanocobalaminVitamin B12 (Form: as Cyanocobalamin) | 100 mcg | 4,170% | Higher than 61% of 14,425 products listing vitamin B12 (median 36 mcg). |
| Biotin | 100 mcg | 330% | 61% of 9,447 products listing biotin give more (median 200 mcg). |
| Pantothenic Acidas Calcium PantothenatePantothenic Acid (Form: as Calcium Pantothenate) | 100 mg | 2,000% | Higher than 86% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg). |
| Cholineas Choline BitartrateCholine (Form: as Choline Bitartrate) | 100 mcg | 1% | This amount is far outside what other labels list for choline, or disagrees with the label's own %DV: possibly a unit or transcription slip in the database. Check the label image on DSLD. |
| Calciumas Calcium PhosphateCalcium (Form: as Calcium Phosphate) | 77 mg | 6% | 64% of 17,831 products listing calcium give more (median 115 mg). |
| Inositol | 100 mcg | 91% of 4,042 products listing inositol give more (median 30 mg). | |
| Para-Aminobenzoic Acid | 100 mcg | 98% of 1,610 products listing PABA give more (median 25 mg). | |
| Natural Food Base | 100 mg | ||
| Alfalfa powder | in the blend, no amount given | ||
| Watercress 10:1 extract | in the blend, no amount given | ||
| Parsley 4:1 extract | in the blend, no amount given | ||
| Lecithin | in the blend, no amount given |
Source: NIH ODS Dietary Supplement Label Database, label 244840 (entered April 22, 2021), 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 100 mg of vitamin B1 (filed by NIH under thiamin) is higher than 94% of the 9,830 thiamin products that print an amount; 163 list more.
- Its 100 mg of vitamin B2 (filed by NIH under riboflavin) is higher than 96% of the 9,824 riboflavin products that print an amount; 110 list more.
- At 1 serving a day, the most its directions give, the label lists 100 mg of niacin, 2.9 times the adult Tolerable Upper Intake Level.
- Its 100 mg of vitamin B6 is higher than 96% of the 15,277 vitamin B6 products that print an amount; 173 list more.
- 91% of the 4,042 products that print an amount of inositol list more than its 0.1 mg of inositol (median 30 mg).
- 98% of the 1,610 products that print an amount of PABA list more than its 0.1 mg of para-aminobenzoic acid (filed by NIH under PABA) (median 25 mg).
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 Ultra B-100 Complex's, rare ingredients counting for more.
- Sustained Release B Complex 50Windmill Natural Vitamins 16 shared, 90% alike
- B-50Puritan's Pride · off the market 15 shared, 87% alike
- Vitamin B-100Radiance 15 shared, 87% alike
- B-100 Ultra B-ComplexNature's Bounty 15 shared, 87% alike
- High Potency B100 Complex With Folic AcidSundown Naturals 15 shared, 87% alike
- Time-Released High Potency B-100 Balanced B-ComplexNature's Bounty 15 shared, 87% alike
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
- Directions: Adults - Take one tablet daily, preferably with food, as a dietary supplement.
- Warnings
- Allergen Certification - This product contains soy.
- Caution: If you are pregnant, nursing, taking any medications or have any medical condition, consult your physician before use. Some supplements may interact with certain medications and/or interfere with certain lab tests.
- Discontinue use and consult your physician if any adverse reactions occur.
- Keep out of reach of children.
- Tamper-Evident Seal: Do not use product if seal appears tampered.
- Allergens and what it does not contain
- Guaranteed no added: Sugar, yeast, wheat, diary, gluten, fish, tree nuts, peanuts, egg, fragrance, artificial colors or flavors, preservatives, animal products, crustacean shellfish. Sodium free.
- Gluten free
- Storage
- Store in a dry place under controlled room temperature: 20 degrees - 25 degrees C (68 degrees - 77 degrees F).
Source: label statements in DSLD label 244840.
What else is on the label?
Other ingredients: Microcrystalline Cellulose, Croscarmellose Sodium, Stearic Acid, Vegetable Magnesium Stearate, Pharmaceutical Glaze, Silicon Dioxide, Calcium Carbonate, Maltodextrin.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Mason guarantee Laboratory Tested cGMP Certified Good Manufacturing Practice.
How many labels does Ultra B-100 Complex have?
2 labels are on file under this name since April 22, 2021: other sizes, label designs and reformulations. The current one leads this page.
- Label 244840 (current) Entered April 22, 2021 · on the market · 100 tablets · UPC 3 11845 06441 7
- Label 244837 Entered April 22, 2021 · on the market · 60 tablets · UPC 3 11845 06445 5
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Mason Vitamins, Inc. (distributor), Miami Lakes, FL. All Mason Natural products.