Theanine Serene
En vente sur le marché américain (selon le DSLD)
Source Naturals Serene Science, food supplement from the US market
Theanine Serene (Source Naturals Serene Science), a food supplement au code-barres 021078017752, is described by its US market label, recorded on 23 January 2023. If sold in France, it would be subject to 1 point of French or European regulation, detailed below. The formula sold in Europe under the same name may differ.
DSLD label 273363, entered on 23 January 2023. 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: DSLD 273363. Labels on the market are prioritised, followed by the most recent for the same status. If entry dates match, the highest DSLD identifier determines the chosen label.
If this product were sold in France
- À vérifier
Magnésium: up to 300 mg a day according to the label, above the limite de sécurité from EFSAEuropean Food Safety Authority. for adults (250 mg a day). Pour ce nutriment, le repère de l'EFSA ne porte que sur les apports ajoutés (compléments, aliments enrichis), pas sur ce qu'apporte l'alimentation courante.
Source: EFSA, Overview on Tolerable Upper Intake Levels (version 11, août 2025), limite supérieure de sécurité (UL).
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
- Source Naturals Serene Science
- Barcode
- 021078017752
- Form
- Tablet
- One serving
- 2 tablets
- Servings
- up to 1 serving per day
- Other ingredients (in English, as written)
- Sorbitol, Stearic Acid, modified Cellulose Gum, Silica
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.
DSLD label 296299: Theanine Serene
Entered into DSLD on 23 August 2023. Retirée du marché américain le 6 July 2022 (selon le DSLD).- Same quantity, different name: Total Carbohydrate in this version; Total Carbohydrates on the displayed label (1 Gram(s))
DSLD label 72571: Theanine Serene
Entered into DSLD on 25 April 2017. Retirée du marché américain le 22 December 2021 (selon le DSLD).Same active composition.
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 recorded in 2023. Photograph the packaging to check whether it has changed.
Has the product changed? Photograph the packaging.