PlainVitamins

Sustained Release Power-Plex

by Nature's Plus · tablet or pill · 90 tablets

  • Off the market since February 2022 (NIH)
  • UPC 0 97467 03230 9
  • DSLD label 71242
  • Serving 1 tablet

Sustained Release Power-Plex by Nature's Plus lists 28 ingredients, 28 with an amount per serving of 1 tablet, such as 10,000 IU of vitamin A, 300 mg of vitamin C, 400 IU (10 mcg) of vitamin D and 100 IU of vitamin E. Its current label entered the NIH Dietary Supplement Label Database on March 24, 2017.

What is in Sustained Release Power-Plex?

Each row as the label prints it, per serving of 1 tablet. 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).

Sustained Release Power-Plex: Supplement Facts rows against the market (DSLD label 71242, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Beta-CaroteneVitamin A (Form: as Beta Carotene)10,000 IU200%Vitamin A in Sustained Release Power-Plex against 5,772 products10,000 IU per serving; the middle half of products list 2,000 IU to 5,000 IU, the median 4,000 IU.10,000 IU

Higher than 82% of 5,772 products listing vitamin A (median 4,000 IU).

Vitamin Cas Ascorbic Acid300 mg500%Vitamin C in Sustained Release Power-Plex against 18,583 products300 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg300 mg

Higher than 75% of 18,583 products listing vitamin C (median 100 mg).

Vitamin Das ErgocalciferolVitamin D (Form: as Ergocalciferol)400 IU (10 mcg)100%Vitamin D in Sustained Release Power-Plex 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 Eas D-Alpha-Tocopheryl SuccinateVitamin E (Form: as D-Alpha Tocopheryl Succinate)100 IU333%Vitamin E in Sustained Release Power-Plex against 6,459 products100 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.100 IU

Higher than 71% of 6,459 products listing vitamin E (median 30 IU).

Thiamineas Thiamine Hydrochloride, Vitamin B1Thiamin (Form: as Thiamine HCl) (Alt. Name: Vitamin B1)25 mg1,667%Thiamin in Sustained Release Power-Plex against 9,830 products25 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg25 mg

Higher than 72% of 9,830 products listing thiamin (median 5 mg).

Riboflavinas Vitamin B225 mg1,471%Riboflavin in Sustained Release Power-Plex against 9,824 products25 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg25 mg

Higher than 75% of 9,824 products listing riboflavin (median 4 mg).

Niacinas NiacinamideNiacin (Form: as Niacinamide)100 mg500%Niacin in Sustained Release Power-Plex against 12,413 products100 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg100 mg

Higher than 88% of 12,413 products listing niacin (median 20 mg). 2.9 times the adult UL a day.

Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine HCl)25 mg1,250%Vitamin B6 in Sustained Release Power-Plex against 15,277 products25 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg25 mg

Higher than 76% of 15,277 products listing vitamin B6 (median 6 mg).

Folateas Folic Acid100 mcg25%Folate in Sustained Release Power-Plex against 7,022 products100 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.100 mcg

86% of 7,022 products listing folate give more (median 400 mcg).

Vitamin B12as CyanocobalaminVitamin B12 (Form: as Cyanocobalamin)250 mcg1,250%Vitamin B12 in Sustained Release Power-Plex against 14,425 products250 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg250 mcg

Higher than 77% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotin20 mcg7%Biotin in Sustained Release Power-Plex against 9,447 products20 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg20 mcg

94% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas Calcium PantothenatePantothenic Acid (Form: as Calcium Pantothenate)46 mg460%Pantothenic Acid (Vitamin B5) in Sustained Release Power-Plex against 10,060 products46 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg46 mg

Higher than 72% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Calciumas Calcium Amino Acid Chelate/ComplexCalcium (Form: as Calcium Amino Acid Chelate/Complex)26 mg3%Calcium in Sustained Release Power-Plex against 17,831 products26 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg26 mg

87% of 17,831 products listing calcium give more (median 115 mg).

Iron Complexas Iron Amino Acid ChelateIron Complex (Form: as Iron Amino Acid Chelate)25 mg139%

The label names the compound (Iron Complex); its amount is likely the compound's weight, not the iron it holds, so it is not placed among other products.

Phosphorusas Phosphorus Amino Acid ComplexPhosphorus (Form: as Phosphorus Amino Acid Complex)13.5 mg1%Phosphorus in Sustained Release Power-Plex against 3,786 products13.5 mg per serving; the middle half of products list 45 mg to 200 mg, the median 90 mg.DV 1,250 mgUL 4,000 mg13.5 mg

96% of 3,786 products listing phosphorus give more (median 90 mg).

Magnesiumas Magnesium Amino Acid Chelate/ComplexMagnesium (Form: as Magnesium Amino Acid Chelate/Complex)7.2 mg2%Magnesium in Sustained Release Power-Plex against 14,003 products7.2 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg7.2 mg

95% of 14,003 products listing magnesium give more (median 86 mg).

Zincas Zinc Amino Acid ChelateZinc (Form: as Zinc Amino Acid Chelate)0.18 mg1%Zinc in Sustained Release Power-Plex against 13,186 products0.18 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg0.18 mg

over 99% of 13,186 products listing zinc give more (median 11 mg).

Copperas Copper Amino Acid ChelateCopper (Form: as Copper Amino Acid Chelate)0.28 mg14%Copper in Sustained Release Power-Plex against 6,468 products0.28 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg0.28 mg

85% of 6,468 products listing copper give more (median 1 mg).

Manganeseas Manganese Amino Acid Chelate/ComplexManganese (Form: as Manganese Amino Acid Chelate/Complex)6.1 mg305%Manganese in Sustained Release Power-Plex against 7,016 products6.1 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg6.1 mg

Higher than 91% of 7,016 products listing manganese (median 2 mg).

Potassiumas Potassium Amino Acid ComplexPotassium (Form: as Potassium Amino Acid Complex)0.1 mg1%

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

Inositol50 mgInositol in Sustained Release Power-Plex 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).

Paba25 mgPABA in Sustained Release Power-Plex against 1,610 products25 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.25 mg

47% of 1,610 products listing PABA give more (median 25 mg).

Betaine HCl25 mgBetaine Hydrochloride in Sustained Release Power-Plex against 914 products25 mg per serving; the middle half of products list 25 mg to 178 mg, the median 50 mg.25 mg

58% of 914 products listing betaine hydrochloride give more (median 50 mg).

Lecithinas Soya25 mgLecithin in Sustained Release Power-Plex against 804 products25 mg per serving; the middle half of products list 50 mg to 1,200 mg, the median 200 mg.25 mg

87% of 804 products listing lecithin give more (median 200 mg).

Rutinas Sophora japonicaRutin (Form: from Sophora japonica PlantPart: leaf Genus: Sophora Species: japonica )25 mgRutin in Sustained Release Power-Plex against 1,232 products25 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.25 mg

37% of 1,232 products listing rutin give more (median 25 mg).

Bioflavonoidsas Citrus limonBioflavonoids (Form: from Citrus limon PlantPart: exocarp Genus: Citrus Species: limon)25 mgFlavonoid in Sustained Release Power-Plex against 2,343 products25 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.25 mg

66% of 2,343 products listing flavonoid give more (median 50 mg).

Cholineas Choline BitartrateCholine (Form: as Choline Bitartrate)21 mg4%*Choline in Sustained Release Power-Plex against 4,738 products21 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg21 mg

67% of 4,738 products listing choline give more (median 40 mg).

Hesperidinas Citrus limonHesperidin (Form: from Citrus limon PlantPart: exocarp Genus: Citrus Species: limon)5 mgHesperidin in Sustained Release Power-Plex against 552 products5 mg per serving; the middle half of products list 10 mg to 50 mg, the median 20 mg.5 mg

80% of 552 products listing hesperidin give more (median 20 mg).

* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.

Source: NIH ODS Dietary Supplement Label Database, label 71242 (entered March 24, 2017), 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:

  • At 1 serving a day, the most its directions give, the label lists 100 mg of niacin, 2.9 times the adult Tolerable Upper Intake Level.
  • 86% of the 7,022 products that print an amount of folate list more than its 100 mcg of folate (median 400 mcg).
  • 94% of the 9,447 products that print an amount of biotin list more than its 20 mcg of biotin (median 200 mcg).
  • 96% of the 3,786 products that print an amount of phosphorus list more than its 13.5 mg of phosphorus (median 90 mg).
  • 95% of the 14,003 products that print an amount of magnesium list more than its 7.2 mg of magnesium (median 86 mg).
  • over 99% of the 13,186 products that print an amount of zinc list more than its 0.18 mg of zinc (median 11 mg).

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 Sustained Release Power-Plex'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, one tablet daily.
Warnings
Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a physician or poison control center immediately.
Allergens and what it does not contain
Free from artificial colors and preservatives.
Yeast free
Storage
Keep tightly closed in a cool, dry place.

Source: label statements in DSLD label 71242.

What else is on the label?

Other ingredients: Dicalcium Phosphate, Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Ferrous Fumarate, Silica, Rose Hips, Stearic Acid, Manganese Gluconate, Magnesium Oxide, Calcium Carbonate, Watercress, Horsetail, Rice Bran, isolated Soy Protein, Magnesium Stearate, Papaya, Parsley, Pacific kelp, Alfalfa, Green Cabbage, Acerola Cherry, Wheat Germ flour.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Quality natural supplements.

How many labels does Sustained Release Power-Plex have?

2 labels are on file under this name since October 25, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 71242 (current) Entered March 24, 2017 · off the market February 28, 2022 · 90 tablets · UPC 0 97467 03230 9
  2. Label 13993 Entered October 25, 2012 · off the market February 16, 2017 · 90 tablets · UPC 0 97467 03230 9

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

Who makes it?

The label names Natural Organics Laboratories, Inc. makers of Nature's Plus (manufacturer), Amityville, New York. All Nature's Plus products.

Where next?