L-Cystine 500 mg
by Solgar · capsule · 100 vegetable capsules
- On the market (NIH)
- UPC 0 33984 00981 3
- DSLD label 213846
- Serving 1 to 2 vegetable capsules; amounts per 1 vegetable capsule
L-Cystine 500 mg by Solgar lists one ingredient: 500 mg of alpha-glucan oligosaccharide per serving of 1 vegetable capsule. Its current label entered the NIH Dietary Supplement Label Database on January 25, 2020.
What is in L-Cystine 500 mg?
Each row as the label prints it, per serving of 1 vegetable 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 |
|---|---|---|---|
| Alpha-Glucan OligosaccharideL-Cystine Note: free form | 500 mg | Higher than 77% of 73 products listing alpha glucans (median 138.2 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 213846 (entered January 25, 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?
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 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?
1 product lists the very same ingredients; the nearest amounts come first.
- L-Cystine 500 mgDouglas Laboratories · off the market same ingredients
- Alpha-GLi Chiropractic Healing Arts Inc. 1 shared, 51% alike
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: As a dietary supplement for adults, take one (1) to two (2) vegetable capsules daily, between meals, or as directed by a healthcare practitioner.
- Warnings
- For more information, call toll-free 1-877-SOLGAR 4 www.solgar.com
- If you are pregnant, nursing, taking any medication or have a medical condition, please consult your healthcare practitioner before taking any dietary supplement.
- Keep out of reach of children.
- Do not use if outer bottle seal is missing, torn or damaged in any way.
- Allergens and what it does not contain
- Gluten, wheat & dairy free
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 213846.
What else is on the label?
Other ingredients: Vegetable Cellulose, Microcrystalline Cellulose, Vegetable Magnesium Stearate.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): K Parve (Kosher).
How many labels does L-Cystine 500 mg have?
One label is on file, entered on January 25, 2020.
- Label 213846 (current) Entered January 25, 2020 · on the market · 100 vegetable capsules · UPC 0 33984 00981 3
DSLD also links this label to: L-Cysteine 500 mg (package size difference, same product), L-Cysteine 500 mg (package size difference, same product), L-Cysteine 500 mg (package size difference, same product), L-Cysteine 500 mg (package size difference, same product), L-Cysteine 500 mg (package size difference, same product), L-Cysteine 500 mg (package size difference, same product), L-Cysteine 500 mg (package size difference, same product), L-Cysteine 500 mg (package size difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Solgar, Inc. (manufacturer), Leonia, NJ, U.S.A.. All Solgar products.