PABA 400 mg

by Signature Supplements · capsule · 100 capsules

On the market (NIH)
DSLD label 338881
Serving 1 capsule
100 servings

PABA 400 mg by Signature Supplements lists one ingredient: 400 mg of para-aminobenzoic acid per serving of 1 capsule. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2025.

What is in PABA 400 mg?

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).

PABA 400 mg: Supplement Facts rows against the market (DSLD label 338881, January 2026 release)
Ingredient	Amount	% DV	Among products listing it
Para-Aminobenzoic Acid	400 mg		Higher than 98% of 1,610 products listing PABA (median 25 mg).

Source: NIH ODS Dietary Supplement Label Database, label 338881 (entered September 25, 2025), 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?

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 400 mg of para-aminobenzoic acid (filed by NIH under PABA) is higher than 98% of the 1,610 PABA products that print an amount; 21 list more.

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.

PABA 500 mgVitamin World same ingredients
PABA 500 MilligramsNutraBio same ingredients
PABA 500 mgSwanson Premium Brand · off the market same ingredients
PABA 500 mgThe Vitamin Shoppe same ingredients
PABA 500 mgDouglas Laboratories same ingredients
PABA 500 mgAN Amazing Nutrition Amazing Formulas same ingredients

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: For adults, take one (1) capsule daily, preferably with meals.
Warnings: As a reminder, discuss the supplements and medications you take with your health care providers. Warning: Pregnant or lactating women should consult a doctor before using any product.; Do not exceed recommended dose.; Not intended for use by persons under the age of 18.
Allergens and what it does not contain: No: chemical fillers or binders, artificial coloring, artificial flavor, preservatives, yeast, corn, milk or milk derivatives, lactose, salt, sodium, soy, sugar, gluten, starch or wheat.
Storage: Store in a dry place and avoid excessive heat.

Source: label statements in DSLD label 338881.

What else is on the label?

Other ingredients: Cellulose, Diatomaceous Earth.

How many labels does PABA 400 mg have?

One label is on file, entered on September 25, 2025.

Label 338881 (current) Entered September 25, 2025 · on the market · 100 capsules

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

Who makes it?

The label names Signature Supplements (distributor), San Clemente, CA. All Signature Supplements products.