Glutathione Precursor Complex
by Swanson · capsule · 60 capsules
- On the market (NIH)
- UPC 0 87614 02542 1
- DSLD label 308516
- Serving 1 capsule
- 60 servings
Glutathione Precursor Complex by Swanson lists 9 ingredients, 9 with an amount per serving of 1 capsule, such as 100 mg of vitamin C, 111 mg of pureway-C, 100 mg of BIOSINT acetyl L-carnitine and 100 mg of L-glutamine. Its current label entered the NIH Dietary Supplement Label Database on February 22, 2024.
What is in Glutathione Precursor Complex?
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 |
|---|---|---|---|
| Vitamin Cas Pureway-C | 100 mg | 111% | Higher than 68% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 422 mg. |
| Pureway-Cas Ascorbic Acid, Lipid Metabolitesproprietary formulation of ascorbic acid USP combined with lipid metabolites (fatty acids) from vegetable waxes | 111 mg | ||
| BIOSINT Acetyl L-Carnitineas Acetyl L-Carnitine HCl | 100 mg | 80% of 933 products listing acetyl L-carnitine give more (median 500 mg). Per day at the most servings: 200 mg. | |
| L-Glutamine | 100 mg | 88% of 1,850 products listing glutamine give more (median 1 g). Per day at the most servings: 0.2 g. | |
| N-Acetyl-L-Cysteine | 100 mg | 57% of 1,259 products listing N-acetyl cysteine give more (median 150 mg). Per day at the most servings: 200 mg. | |
| Milk Thistle Extractas SilymarinStandardized to 80% silymarin by UV | 50 mg | 83% of 1,277 products listing milk thistle give more (median 175 mg). Per day at the most servings: 100 mg. | |
| Trimethlglycineas BetaPower Natural Betaine | 50 mg | 74% of 731 products listing betaine give more (median 250 mg). Per day at the most servings: 100 mg. | |
| R-Fraction Alpha-Lipoic Acidas Bio-Enhanced Na-RALA | 37.5 mg | 63% of 2,407 products listing alpha lipoic acid give more (median 50 mg). Per day at the most servings: 75 mg. | |
| Setria L-Glutathione Tripeptideas Cysteine, Glutamic Acid, Glycine | 37.5 mg | 53% of 717 products listing glutathione give more (median 50 mg). Per day at the most servings: 75 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 308516 (entered February 22, 2024), 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?
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:
- 88% of the 1,850 products that print an amount of glutamine list more than its 0.1 g of L-glutamine (filed by NIH under glutamine) (median 1 g).
- 83% of the 1,277 products that print an amount of milk thistle list more than its 50 mg of milk thistle (median 175 mg).
The NIH database records 2 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?
1 product lists the very same ingredients; the nearest amounts come first.
- Dr. Stephen Langer's Glutathione Precursor ComplexSwanson Ultra · off the market same ingredients
- Beyond Raw Liver GuardGNC Beyond Raw 5 shared, 51% alike
- Liver Maintenance FormulaPhysioLogics · off the market 4 shared, 47% alike
- Liv-A-New With Milk ThistleGood 'N Natural · off the market 4 shared, 47% alike
- Detoxapure Liv-A-New Cleansing FormulaVitamin World 4 shared, 47% alike
- Snow WhiteDR.F 5 shared, 47% 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, take one capsule two times per day with water.
- Warnings
- Warning: For adults only. Keep out of reach of children.
- Do not take this product if you are pregnant or nursing. Consult your physician before using this or any product if you are taking medication or have a medical condition.
- Discontinue use if you experience gastrointestinal discomfort. Do not use if seal is broken.
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 308516.
What else is on the label?
Other ingredients: Gelatin, Sodium Copper Chlorophyllin, Rice Flour, Magnesium Stearate.
How many labels does Glutathione Precursor Complex have?
One label is on file, entered on February 22, 2024.
- Label 308516 (current) Entered February 22, 2024 · on the market · 60 capsules · UPC 0 87614 02542 1
DSLD also links this label to: Dr. Stephen Langer's Glutathione Precursor Complex (image 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 Swanson Health Products (distributor), Fargo, ND. All Swanson products.