Iso-Stak
En vente sur le marché américain (selon le DSLD)
Universal, food supplement from the US market
Iso-Stak (Universal), a food supplement au code-barres 039442051691, is described by its US market label, recorded on 27 October 2014. If sold in France, it would be subject to 3 points of French or European regulation, detailed below. Doses of niacine are not compared: their US units depend on the form. The formula sold in Europe under the same name may differ.
Official label, entered on 27 October 2014. Dietary Supplement Label Database (DSLD), US National Institutes of Health: current and off-market labels, retrieved 27 October 2026.
Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (CC0); US market labels.
Displayed label: Official label. Labels on the market are prioritised, followed by the most recent for the same status.
If this product were sold in France
- Dose déclarée au-delà d'une limite
Vitamine B6: up to 10.5 mg a day according to the label (at most 3 servings a day), above the maximum dose of 2 mg set in France for a food supplement (2006 Order, not revised since November 2006).
Source: French orders of 9 May 2006 and 14 November 2006 as published in the Official Journal (maximum daily doses), arrêté du 9 mai 2006, annexe III.
- Dose déclarée au-delà d'une limite
Zinc: up to 30 mg a day according to the label (at most 3 servings a day), above the maximum dose of 15 mg set in France for a food supplement (2006 Order, not revised since November 2006).
Source: French orders of 9 May 2006 and 14 November 2006 as published in the Official Journal (maximum daily doses), arrêté du 9 mai 2006, annexe III.
- À vérifier
Zinc: up to 30 mg a day according to the label, above the limite de sécurité from EFSAEuropean Food Safety Authority. for adults (25 mg a day). Le repère de l'EFSA porte sur l'apport total d'une journée, alimentation et compléments.
Source: EFSA, Overview on Tolerable Upper Intake Levels (version 11, August 2025), limite supérieure de sécurité (UL).
- Conditions légales
Tribulus terrestris L.: Les parties de plantes doivent être cuites
Source: French orders of 9 May 2006 (nutrients), 24 June 2014 (plants) and 26 September 2016 (other substances), consolidated LEGI collection, arrêté du 24 juin 2014, annexe I.
A daily dose is calculated only if the label gives the maximum number of servings and a unit of mass (or international units for vitamin D). Quantities come from the label, not an analysis. In the United States, the label presents this product as a ‘dietary supplement’; in France, a product of this type may belong to another category (a sports powder, for example), and maximum food supplement doses do not apply to it.
Label composition
- Brand
- Universal
- Barcode
- 039442051691
- Form
- Capsule
- One serving
- 1 capsule
- Servings
- up to 3 servings per day
- Other ingredients (in English, as written)
- Tribulus terrestris extract, Dicalcium Phosphate, Pueraria lobata, Gelatin, Lecithin, Cyanotis vaga extract, Magnesium Stearate, Zinc Oxide, Niacinamide, Pyridoxine Hydrochloride
| Ingredient (as written, in English) | Category | Per serving |
|---|---|---|
| Vitamin B6 | Vitamin | 3.5 mg |
| Niacin | Vitamin | 10 mg |
| Zinc | Mineral | 10 mg |
| 5-Methyl-7-Methoxyisoflavone | Other substance | 100 mg |
| 7-Isopropoxyisoflavone | Other substance | 100 mg |
| 5,7-Dihydroxyflavone | Other substance | 25 mg |
| {Beta}-Ecdysterone | Other substance | 25 mg |
| Isoflavonol(TM) | Other substance | 150 mg |
| Triboxybol(TM) (Tribulus terrestris) | Plant | 200 mg |
| Phosphatidylcholine | Fat | 10 mg |
Dietary Supplement Label Database (DSLD), US National Institutes of Health: current and off-market labels, retrieved 27 October 2026.
Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (CC0); US market labels.
Other versions of this label
The differences below describe each other version relative to the label shown on this page. They concern active ingredient rows and quantities per serving as written. Missing quantities are not estimated and different units are not converted. Dates refer to entry into DSLD, not necessarily to a formula change.
Official label: IsoStak
Entered into DSLD on 23 December 2011. Retirée du marché américain le 9 September 2014 (selon le DSLD).- Same quantity, different name: 20-hydroxyecdysone in this version; {Beta}-Ecdysterone on the displayed label (25 mg)
- Same quantity, different name: Lysophosphatidylcholine in this version; Phosphatidylcholine on the displayed label (10 mg)
Source
This information reproduces the US label recorded by the US National Institutes of Health (NIH). It does not say whether the product is effective and does not replace advice from a doctor or pharmacist, particularly during pregnancy or when taking medication.
List declared on (register: Dietary Supplement Label Database (DSLD), US National Institutes of Health: current and off-market labels).
List recorded in 2014. Photograph the packaging to check whether it has changed. Photograph the packaging
Brand : Universal