PlainVitamins

BioSil

by Natural Factors · capsule · 30 small vegan liquid capsules

  • On the market (NIH)
  • DSLD label 220622
  • Serving 1 capsule
  • 30 servings

BioSil by Natural Factors lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 5 mg of silicon and 100 mg of choline. Its current label entered the NIH Dietary Supplement Label Database on May 22, 2020.

What is in BioSil?

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).

BioSil: Supplement Facts rows against the market (DSLD label 220622, January 2026 release)
IngredientAmount% DVAmong products listing it
Siliconas Choline-stabilized Orthosilicic AcidSilicon (Form: as Choline-stabilized Orthosilicic Acid (Alt. Name: ch-OSA))5 mgSilicon in BioSil against 1,220 products5 mg per serving; the middle half of products list 2 mg to 10.5 mg, the median 4 mg.5 mg

Higher than 57% of 1,220 products listing silicon (median 4 mg). Per day at the most servings: 10 mg.

Choline100 mg18%Choline in BioSil against 4,738 products100 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg100 mg

Higher than 72% of 4,738 products listing choline (median 40 mg). Per day at the most servings: 200 mg.

Source: NIH ODS Dietary Supplement Label Database, label 220622 (entered May 22, 2020), 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.

The NIH database records 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?

6 products list the very same ingredients; the nearest amounts come first.

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: Take 1 capsule, two times daily.
Warnings
Consult your healthcare professional prior to use if you have, or suspect a medical condition, are taking prescription drugs, or are pregnant or lactating.
Keep out of the reach of children.
Allergens and what it does not contain
This product does not contain soy, dairy, egg, corn, wheat, gluten, fish/shellfish, nuts/tree nuts.
No artificial colors or flavors Non-GMO
No animal parts or sea organisms
Storage
Store at 59-86 degrees F (15-30 degrees C). Protect from light and moisture.

Source: label statements in DSLD label 220622.

What else is on the label?

Other ingredients: Silicon Dioxide, purified Water, Capsule Shell.

How many labels does BioSil have?

6 labels are on file under this name since May 22, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 220622 (current) Entered May 22, 2020 · on the market · 30 small vegan liquid capsules
  2. Label 220611 Entered May 22, 2020 · off the market April 7, 2020 · 60 small vegan liquid capsules
  3. Label 220185 Entered May 22, 2020 · on the market · 60 small vegan liquid capsules
  4. Label 220073 Entered May 22, 2020 · on the market · 60 convenient stick packets · UPC 5 425010 391965
  5. Label 220072 Entered May 22, 2020 · off the market September 18, 2019 · 60 small vegan liquid capsules
  6. Label 220059 Entered May 22, 2020 · off the market April 16, 2020 · 30 vegan liquid capsules

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

Who makes it?

The label names Natural Factors (distributor), Monroe, WA. All Natural Factors products.

Where next?