L-Lysine
by Nature's Sunshine · capsule · 100 capsules
- On the market (NIH)
- UPC 0 99904 01631 6
- DSLD label 278141
- Serving 1 capsule
- 100 servings
L-Lysine by Nature's Sunshine lists one ingredient: 450 mg of L-lysine hydrochloride per serving of 1 capsule. Its current label entered the NIH Dietary Supplement Label Database on October 24, 2022.
What is in L-Lysine?
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| L-Lysine Hydrochloride | 450 mg | 56% of 1,250 products listing lysine give more (median 500 mg). Per day at the most servings: 1,350 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 278141 (entered October 24, 2022), 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?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.
The NIH database records 3 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?
6 products list the very same ingredients; the nearest amounts come first.
- L-Lysine 450 mgTerraVita Premium Collection same ingredients
- L-LysineNOW same ingredients
- Lysine 475 mgDr. Clark Store same ingredients
- L-Lysine 500GNC · off the market same ingredients
- L-Lysine 500 mgVitaCeutical Labs same ingredients
- L-Lysine 500 mgVitabase 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
- Recommended Use: Take 1 capsule with a meal three times daily.
- Warnings
- Do not use if inner seal is missing or damaged.
Source: label statements in DSLD label 278141.
What else is on the label?
Other ingredients: Capsule, Cellulose, Magnesium Stearate, Silicon Dioxide.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Ko Pareve (Kosher).
How many labels does L-Lysine have?
3 labels are on file under this name since September 24, 2019: other sizes, label designs and reformulations. The current one leads this page.
- Label 278141 (current) Entered October 24, 2022 · on the market · 100 capsules · UPC 0 99904 01631 6
- Label 220952 Entered May 22, 2020 · off the market January 21, 2022 · 100 capsules · UPC 0 99904 01631 6
- Label 207258 Entered September 24, 2019 · off the market April 7, 2020 · 100 capsules · UPC 0 99904 01631 6
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Nature's Sunshine Products, Inc. (manufacturer), Spanish Fork, UT. All Nature's Sunshine products.