P-5-P (Pyridoxal-5-Phosphate) with Magnesium Bisglycinate

by Kirkman · capsule · 100 capsules

  • On the market (NIH)
  • UPC 8 12325 02055 3
  • DSLD label 317764
  • Serving 1 capsule
  • 100 servings

P-5-P (Pyridoxal-5-Phosphate) with Magnesium Bisglycinate by Kirkman lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 50 mg of vitamin B6 and 100 mg of magnesium. Its current label entered the NIH Dietary Supplement Label Database on August 22, 2024.

What is in P-5-P (Pyridoxal-5-Phosphate) with Magnesium Bisglycinate?

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).

P-5-P (Pyridoxal-5-Phosphate) with Magnesium Bisglycinate: Supplement Facts rows against the market (DSLD label 317764, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B6as Pyridoxal 5-Phosphate50 mg2,941%Vitamin B6 in P-5-P (Pyridoxal-5-Phosphate) with Magnesium Bisglycinate against 15,277 products50 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg50 mg

Higher than 87% of 15,277 products listing vitamin B6 (median 6 mg).

Magnesiumas Magnesium Bisglycinate100 mg24%Magnesium in P-5-P (Pyridoxal-5-Phosphate) with Magnesium Bisglycinate against 14,003 products100 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg100 mg

Higher than 51% of 14,003 products listing magnesium (median 86 mg).

Source: NIH ODS Dietary Supplement Label Database, label 317764 (entered August 22, 2024), version 9.4.0. See the label on DSLD or its label image (PDF). 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 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?

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
Suggested use: Take one capsule daily or as directed by a physician.
Warnings
Keep out of the reach of children. For children under four, consult a physician.
Caution: Magnesium supplements can cause changes in stool consistency and bowel habits. If this occurs, discontinue use and discuss this matter with your physician.
Allergens and what it does not contain
Free of: Milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy, and sesame
Gluten-free
Storage
Important: Store in a cool dry place and tightly capped.

Source: label statements in DSLD label 317764.

What else is on the label?

Other ingredients: Hypromellose, Water, L-Leucine.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Ultra tested cGMP.

How many labels does P-5-P (Pyridoxal-5-Phosphate) with Magnesium Bisglycinate have?

2 labels are on file under this name since October 24, 2023: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 317764 (current) Entered August 22, 2024 · on the market · 100 capsules · UPC 8 12325 02055 3
  2. Label 297245 Entered October 24, 2023 · off the market August 19, 2023 · 100 capsules · UPC 8 12325 02055 3

DSLD also links this label to: P-5-P (Pyridoxal-5-Phosphate) With Magnesium Glycinate (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 Kirkman (manufacturer), Lake Oswego, OR. All Kirkman products.

Where next?