PlainVitamins

Hair, Skin, & Nails Guard

by Perque · other (e.g. tea bag) · 120 tabsules

  • On the market (NIH)
  • DSLD label 240760
  • Serving 4 tabsules
  • 30 servings

Hair, Skin, & Nails Guard by Perque lists 21 ingredients, 21 with an amount per serving of 4 tabsules, such as 200 mg of vitamin C, 10 mcg (400 IU) of vitamin D3, 750 mcg of vitamin K-1 and 250 mcg of vitamin K2. Its current label entered the NIH Dietary Supplement Label Database on December 26, 2020.

What is in Hair, Skin, & Nails Guard?

Each row as the label prints it, per serving of 4 tabsules. 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, Skin, & Nails Guard: Supplement Facts rows against the market (DSLD label 240760, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas L-AscorbateVitamin C (Form: 100% L-Ascorbate Note: fully reduced, corn free)200 mg330%Vitamin C in Hair, Skin, & Nails Guard against 18,583 products200 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg200 mg

Higher than 63% of 18,583 products listing vitamin C (median 100 mg).

Vitamin D3as Cholecalciferol10 mcg (400 IU)100%Vitamin D in Hair, Skin, & Nails Guard 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).

Vitamin K-1750 mcg937%Vitamin K in Hair, Skin, & Nails Guard against 4,607 products1,000 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg1,000 mcg

Higher than 98% of 4,607 products listing vitamin K (median 80 mcg).

Vitamin K2250 mcg312%
Biotin2.5 mg830%Biotin in Hair, Skin, & Nails Guard against 9,447 products2,500 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg2,500 mcg

Higher than 89% of 9,447 products listing biotin (median 200 mcg).

Calciumas Calcium Acetate, Calcium Citrate, Calcium FumarateCalcium (Form: as Calcium Acetate, Calcium Glycinate, Calcium Succinate, Calcium Malate, Calcium Fumarate, and Calcium Citrate)250 mg25%Calcium in Hair, Skin, & Nails Guard against 17,831 products250 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg250 mg

Higher than 73% of 17,831 products listing calcium (median 115 mg).

Magnesiumas Magnesium Acetate, Magnesium Citrate, Magnesium FumarateMagnesium (Form: as Magnesium Acetate, Magnesium Glycinate, Magnesium Succinate, Magnesium Malate, Magnesium Fumarate, and Magnesium Citrate)500 mg125%Magnesium in Hair, Skin, & Nails Guard against 14,003 products860 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg860 mg

Higher than over 99% of 14,003 products listing magnesium (median 86 mg). 2.5 times the adult UL a day.

Zincas Zinc CitrateZinc (Form: as Zinc Citrate)10 mg100%Zinc in Hair, Skin, & Nails Guard 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).

Manganeseas Manganese CitrateManganese (Form: as Manganese Citrate)11 mg550%Manganese in Hair, Skin, & Nails Guard against 7,016 products11 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg11 mg

Higher than 97% of 7,016 products listing manganese (median 2 mg).

Chromiumas Chromium CitrateChromium (Form: as Chromium Citrate)50 mcg42%Chromium in Hair, Skin, & Nails Guard against 7,825 products50 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg50 mcg

67% of 7,825 products listing chromium give more (median 100 mcg).

Seleniumas L-SelenomethionineSelenium (Form: as L-Selenomethione)250 mcg357%Selenium in Hair, Skin, & Nails Guard against 7,658 products250 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg250 mcg

Higher than 98% of 7,658 products listing selenium (median 55 mcg).

Copperas Copper SebacateCopper (Form: as Copper Sebacate)1 mg50%Copper in Hair, Skin, & Nails Guard against 6,468 products1 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg1 mg

40% of 6,468 products listing copper give more (median 1 mg).

Iodine100 mcg67%Iodine in Hair, Skin, & Nails Guard against 6,382 products100 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg100 mcg

59% of 6,382 products listing iodine give more (median 150 mcg).

Iodideas Potassium IodideIodide (Form: as Potassium Iodide)150 mcg100%
Strontiumas Strontium CitrateStrontium (Form: as Strontium Citrate)50 mgStrontium in Hair, Skin, & Nails Guard against 111 products50 mg per serving; the middle half of products list 2.45 mg to 300 mg, the median 9.6 mg.50 mg

Higher than 58% of 111 products listing strontium (median 9.6 mg).

Boronas Boron CitrateBoron (Form: as Boron Citrate)6 mgBoron in Hair, Skin, & Nails Guard against 3,339 products6 mg per serving; the middle half of products list 0.3 mg to 2 mg, the median 1 mg.UL 20 mg6 mg

Higher than 96% of 3,339 products listing boron (median 1 mg).

Vanadiumas Vanadium CitrateVanadium (Form: as Vanadium Citrate)50 mcgVanadium in Hair, Skin, & Nails Guard against 1,744 products50 mcg per serving; the middle half of products list 10 mcg to 100 mcg, the median 25 mcg.UL 1,800 mcg50 mcg

Higher than 59% of 1,744 products listing vanadium (median 25 mcg).

Silicaas Magnesium TrisilicateSilica (Form: from Magnesium Trisilicate (Form: from Horse Tail Genus: Equisetum))10 mgSilicon in Hair, Skin, & Nails Guard against 1,220 products10 mg per serving; the middle half of products list 2 mg to 10.5 mg, the median 4 mg.10 mg

Higher than 68% of 1,220 products listing silicon (median 4 mg).

L-Lysine200 mgLysine in Hair, Skin, & Nails Guard against 1,250 products200 mg per serving; the middle half of products list 148.25 mg to 996.25 mg, the median 500 mg.200 mg

69% of 1,250 products listing lysine give more (median 500 mg).

Magnesiumas C16 Alkyls, C18 AlkylsMagnesium (Form: as C16 Alkyls (Form: from whole untreated Palm PlantPart: fruit and leaf), and C18 Alkyls (Form: from whole, untreated Palm PlantPart: fruit and leaf))360 mg
Croscarmellose200 mg

Source: NIH ODS Dietary Supplement Label Database, label 240760 (entered December 26, 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?

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 1,000 mcg of vitamin K (2 rows of the label added together) is higher than 98% of the 4,607 vitamin K products that print an amount; 91 list more.
  • At 1 serving a day, the most its directions give, the label lists 860 mg of magnesium, 2.5 times the adult Tolerable Upper Intake Level.
  • Its 11 mg of manganese is higher than 97% of the 7,016 manganese products that print an amount; 213 list more.
  • Its 250 mcg of selenium is higher than 98% of the 7,658 selenium products that print an amount; 114 list more.
  • Its 6 mg of boron is higher than 96% of the 3,339 boron products that print an amount; 83 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, Skin, & Nails Guard'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
Directions: As a dietary supplement, take four (4) tabsules in divided doses with meals or as directed by your health professional.
Warnings
Keep out of reach of children.
Do not use product if the tamper-resistant shrink band around the cap or the inner seal beneath the cap appears to have been tampered with or is missing.
Warning: Pregnant and nursing mothers need to check with their health professional before taking supplements.
Allergens and what it does not contain
Does not contain: Citrus, MSG, wheat, gluten, corn, starch, sugar, soy, yeast, zein, sulfates, phosphates (other than coenzymes), preservatives, casein or other milk derivatives. NO GMO's; NO toxic minerals or metals
Storage
Must be stored with cap on tightly in a cool, dry place.

Source: label statements in DSLD label 240760.

What else is on the label?

Other ingredients: None.

How many labels does Hair, Skin, & Nails Guard have?

One label is on file, entered on December 26, 2020.

  1. Label 240760 (current) Entered December 26, 2020 · on the market · 120 tabsules

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

Who makes it?

The label names Perque Integrative Health (manufacturer, distributor), Ashburn, VA. All Perque products.

Where next?