PlainVitamins

Hairprin

by Approved Science · capsule · 60 capsules

  • On the market (NIH)
  • UPC X002JESVBV
  • DSLD label 319769
  • Serving 1 capsule; amounts per 2 capsules
  • 30 servings

Hairprin by Approved Science lists 21 ingredients, 21 with an amount per serving of 2 capsules, such as 5,000 IU of vitamin A, 24 IU of vitamin E, 20 mg of vitamin B6 and 10 mg of vitamin B2. Its current label entered the NIH Dietary Supplement Label Database on November 22, 2024.

What is in Hairprin?

Each row as the label prints it, per serving of 2 capsules. 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).

Hairprin: Supplement Facts rows against the market (DSLD label 319769, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Beta-Carotene5,000 IU100%Vitamin A in Hairprin against 5,772 products5,000 IU per serving; the middle half of products list 2,000 IU to 5,000 IU, the median 4,000 IU.5,000 IU

Higher than 55% of 5,772 products listing vitamin A (median 4,000 IU). Per day at the most servings: 10,000 IU.

Vitamin Eas DL-Alpha-Tocopheryl Acetate24 IU160%Vitamin E in Hairprin against 6,459 products24 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.24 IU

69% of 6,459 products listing vitamin E give more (median 30 IU). Per day at the most servings: 48 IU.

Vitamin B6as Pyridoxine Hydrochloride20 mg100%

This amount is far outside what other labels list for vitamin B6, or disagrees with the label's own %DV: possibly a unit or transcription slip in the database. Check the label image on DSLD.

Vitamin B2as Riboflavin10 mg588%Riboflavin in Hairprin against 9,824 products10 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg10 mg

Higher than 61% of 9,824 products listing riboflavin (median 4 mg). Per day at the most servings: 20 mg.

Vitamin B12as Methylcobalamin10 mcg167%Vitamin B12 in Hairprin against 14,425 products10 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg10 mcg

67% of 14,425 products listing vitamin B12 give more (median 36 mcg). Per day at the most servings: 20 mcg.

Pantothenic Acid50 mg500%Pantothenic Acid (Vitamin B5) in Hairprin against 10,060 products50 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg50 mg

Higher than 72% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg). Per day at the most servings: 100 mg.

Zincas Zinc Oxide16 mg106%Zinc in Hairprin against 13,186 products16 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg16 mg

Higher than 78% of 13,186 products listing zinc (median 11 mg). Per day at the most servings: 32 mg.

Ironas Ferrous Fumarate10 mg66%Iron in Hairprin against 6,910 products10 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg10 mg

Higher than 67% of 6,910 products listing iron (median 5 mg). Per day at the most servings: 20 mg.

Copperas Copper Gluconate900 mcg46%Copper in Hairprin against 6,468 products0.9 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg0.9 mg

59% of 6,468 products listing copper give more (median 1 mg). Per day at the most servings: 1.8 mg.

Biotin500 mcg167%Biotin in Hairprin against 9,447 products500 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg500 mcg

Higher than 79% of 9,447 products listing biotin (median 200 mcg). Per day at the most servings: 1,000 mcg.

Folic Acid200 mcg50%Folate in Hairprin against 7,022 products200 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.200 mcg

71% of 7,022 products listing folate give more (median 400 mcg). Per day at the most servings: 400 mcg.

Iodineas Potassium Iodide150 mcg100%Iodine in Hairprin against 6,382 products150 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg150 mcg

15% of 6,382 products listing iodine give more (median 150 mcg). Per day at the most servings: 300 mcg.

Seleniumas Selenium Amino Acid Chelate70 mcg100%Selenium in Hairprin against 7,658 products70 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg70 mcg

Higher than 52% of 7,658 products listing selenium (median 55 mcg). Per day at the most servings: 140 mcg.

Saw Palmettoas Serenoa repens Extract400 mgSaw Palmetto in Hairprin against 1,109 products400 mg per serving; the middle half of products list 100 mg to 320 mg, the median 200 mg.400 mg

Higher than 83% of 1,109 products listing saw palmetto (median 200 mg). Per day at the most servings: 800 mg.

L-Cysteine200 mgCysteine in Hairprin against 516 products200 mg per serving; the middle half of products list 30 mg to 200 mg, the median 85 mg.200 mg

Higher than 72% of 516 products listing cysteine (median 85 mg). Per day at the most servings: 400 mg.

L-Methionine200 mgMETHIONINE in Hairprin against 981 products200 mg per serving; the middle half of products list 25 mg to 250 mg, the median 100 mg.200 mg

Higher than 68% of 981 products listing METHIONINE (median 100 mg). Per day at the most servings: 400 mg.

Ginkgo biloba120 mgGinkgo in Hairprin against 1,339 products120 mg per serving; the middle half of products list 30 mg to 120 mg, the median 60 mg.120 mg

Higher than 65% of 1,339 products listing ginkgo (median 60 mg). Per day at the most servings: 240 mg.

Fo-Tias Fallopia Multiflora100 mgFo-Ti in Hairprin against 176 products100 mg per serving; the middle half of products list 57.5 mg to 800 mg, the median 212.5 mg.100 mg

59% of 176 products listing fo-ti give more (median 212.5 mg). Per day at the most servings: 200 mg.

Methylsulfonylmethane100 mgMethylsulfonylmethane in Hairprin against 1,454 products100 mg per serving; the middle half of products list 150 mg to 1,000 mg, the median 500 mg.100 mg

78% of 1,454 products listing methylsulfonylmethane give more (median 500 mg). Per day at the most servings: 200 mg.

Silicaas Bamboo Stem Extract50 mgSilicon in Hairprin against 1,220 products50 mg per serving; the middle half of products list 2 mg to 10.5 mg, the median 4 mg.50 mg

Higher than 94% of 1,220 products listing silicon (median 4 mg). Per day at the most servings: 100 mg.

Borage Oil4 mgBorage Oil in Hairprin against 254 products4 mg per serving; the middle half of products list 161.5 mg to 1,000 mg, the median 515 mg.4 mg

98% of 254 products listing borage oil give more (median 515 mg). Per day at the most servings: 8 mg.

Source: NIH ODS Dietary Supplement Label Database, label 319769 (entered November 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?

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 50 mg of silica (filed by NIH under silicon) is higher than 94% of the 1,220 silicon products that print an amount; 55 list more.
  • 98% of the 254 products that print an amount of borage oil list more than its 4 mg of borage oil (median 515 mg).

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?

2 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: As a dietary supplement, take two capsules daily, (one in the morning and one in the afternoon), before meals with an 8 oz. glass of water.
Warnings
Caution: Do not exceed recommended dose. Do not use if safety seal is damaged or missing.
Pregnant women or nursing mothers, children under 18, and individuals with a known medical condition, should consult with a physician before taking this or any other dietary supplement.
Pregnant women or nursing mothers, children under 18, and individuals with a known medical condition, should consult with a physician before taking this or any other dietary supplement. Keep out of reach of children.
Allergens and what it does not contain
Made with GMO free ingredients
Storage
Store at room temperature.

Source: label statements in DSLD label 319769.

What else is on the label?

Other ingredients: Cellulose.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Vegan friendly Made in USA No animal testing GMP Good Manufacturing Practice Quality Product.

How many labels does Hairprin have?

One label is on file, entered on November 22, 2024.

  1. Label 319769 (current) Entered November 22, 2024 · on the market · 60 capsules · UPC X002JESVBV

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

Who makes it?

The label names Approved Science (distributor), New York, NY. All Approved Science products.

Where next?