PlainVitamins

Hair Full

by Key Nutrients · capsule · 60 veggie capsules

  • On the market (NIH)
  • UPC 8 65366 00040 4
  • DSLD label 259079
  • Serving 2 capsules
  • 30 servings

Hair Full by Key Nutrients lists 17 ingredients, 17 with an amount per serving of 2 capsules, such as 900 mcg RAE of vitamin A, 600 mg of vitamin C, 10 mcg (400 IU) of vitamin D and 5 mg of thiamine. Its current label entered the NIH Dietary Supplement Label Database on January 22, 2022.

What is in Hair Full?

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).

Hair Full: Supplement Facts rows against the market (DSLD label 259079, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Retinyl Palmitate900 mcg RAE100%
Vitamin Cas Ascorbic Acid600 mg667%Vitamin C in Hair Full against 18,583 products600 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg600 mg

Higher than 89% of 18,583 products listing vitamin C (median 100 mg).

Vitamin Das Cholecalciferol10 mcg (400 IU)50%Vitamin D in Hair Full against 14,175 products10 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg10 mcg

57% of 14,175 products listing vitamin D give more (median 15 mcg).

Thiamineas Thiamine Hydrochloride5 mg417%Thiamin in Hair Full against 9,830 products5 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg5 mg

46% of 9,830 products listing thiamin give more (median 5 mg).

Riboflavin5 mg385%Riboflavin in Hair Full against 9,824 products5 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg5 mg

Higher than 51% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Niacinamide25 mg156%Niacin in Hair Full against 12,413 products25 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg25 mg

Higher than 56% of 12,413 products listing niacin (median 20 mg).

Vitamin B6as Pyridoxine Hydrochloride6 mg353%Vitamin B6 in Hair Full against 15,277 products6 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg6 mg

49% of 15,277 products listing vitamin B6 give more (median 6 mg).

Folateas Folic Acid180 mcg DFE45%
Vitamin B12as Methylcobalamin6 mcg250%Vitamin B12 in Hair Full against 14,425 products6 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg6 mcg

74% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Biotin5,000 mcg16,667%Biotin in Hair Full against 9,447 products5,000 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg5,000 mcg

Higher than 93% of 9,447 products listing biotin (median 200 mcg).

Pantothenic Acidas D-Calcium Pantothenate50 mg1,000%Pantothenic Acid (Vitamin B5) in Hair Full 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).

Zincas Zinc Gluconate10 mg91%Zinc in Hair Full against 13,186 products10 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg10 mg

51% of 13,186 products listing zinc give more (median 11 mg).

Inositol50 mgInositol in Hair Full against 4,042 products50 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.50 mg

Higher than 55% of 4,042 products listing inositol (median 30 mg).

hydrolyzed Keratin50 mg
Ginkgo biloba45 mgGinkgo in Hair Full against 1,339 products45 mg per serving; the middle half of products list 30 mg to 120 mg, the median 60 mg.45 mg

68% of 1,339 products listing ginkgo give more (median 60 mg).

Bamboo extractas Silica20 mgBamboo in Hair Full against 134 products20 mg per serving; the middle half of products list 25.75 mg to 600 mg, the median 92.5 mg.20 mg

79% of 134 products listing bamboo give more (median 92.5 mg).

Methylsulfonylmethane400 mgMethylsulfonylmethane in Hair Full against 1,454 products400 mg per serving; the middle half of products list 150 mg to 1,000 mg, the median 500 mg.400 mg

51% of 1,454 products listing methylsulfonylmethane give more (median 500 mg).

Source: NIH ODS Dietary Supplement Label Database, label 259079 (entered January 22, 2022), 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 5,000 mcg of biotin is higher than 93% of the 9,447 biotin products that print an amount; 311 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?

The products whose ingredient lists overlap most with Hair Full's, rare ingredients counting for more.

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 2 capsules per day, or as directed by a healthcare professional. For best results, take daily for 30 days minimum.
Warnings
Caution: Do not exceed suggested dose.
If pregnant, nursing, have a serious medical condition or under the age of 18, consult a physician before use.
Keep out of reach of children.
Do not use if the safety seal is damaged or missing.
Allergens and what it does not contain
Made with Non-GMO ingredients
Zero dairy, soy, gluten, tree nuts, shellfish, animal products or derivatives
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 259079.

What else is on the label?

Other ingredients: Rice Flour, Magnesium Stearate, Hypromellose, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP Good Manufacturing Practice Certified.

How many labels does Hair Full have?

One label is on file, entered on January 22, 2022.

  1. Label 259079 (current) Entered January 22, 2022 · on the market · 60 veggie capsules · UPC 8 65366 00040 4

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

Who makes it?

The label names Key Nutrients (distributor), Scottsdale, AZ. All Key Nutrients products.

Where next?