Arthro-Syn

En vente sur le marché américain (selon le DSLD)

Douglas Laboratories, food supplement from the US market

Arthro-Syn (Douglas Laboratories), a food supplement au code-barres 310539004937, is described by its US market label, recorded on 26 April 2012. If sold in France, it would be subject to 5 points of French or European regulation, detailed below. Doses of folates, niacine, vitamine A 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 26 April 2012. 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 C: up to 500 mg a day according to the label (at most 1 serving a day), above the maximum dose of 180 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
Vitamine B6: up to 50 mg a day according to the label (at most 1 serving 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 25 mg a day according to the label (at most 1 serving 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.
Dose déclarée au-delà d'une limite
Manganèse: up to 100 mg a day according to the label (at most 1 serving a day), above the maximum dose of 3.5 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
Chrome: up to 100 µg a day according to the label (at most 1 serving a day), above the maximum dose of 25 µg 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
Vitamine B6: up to 50 mg a day according to the label, above the limite de sécurité from EFSA for adults (12 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).
À vérifier
Manganèse: up to 100 mg a day according to the label, above the niveau de sécurité from EFSA for adults (8 mg a day). Son dépassement ne permet pas, à lui seul, de caractériser un risque : l'EFSA n'a pas pu fixer de limite supérieure pour ce nutriment. 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), niveau de sécurité.

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: Douglas Laboratories
Barcode: 310539004937
Form: Capsule
One serving: 4 capsules
Servings: up to 1 serving per day
Other ingredients (in English, as written): Cellulose, Gelatin, Vegetable Stearate

Ingredient (as written, in English)	Category	Per serving
Vitamin A	Vitamin	2,500 UI
Vitamin C	Vitamin	500 mg
Vitamin E	Vitamin	100 UI
Thiamine	Vitamin	40 mg
Riboflavin	Vitamin	20 mg
Niacin/Niacinamide	Vitamin	100 mg
Vitamin B6	Vitamin	50 mg
Folic Acid	Vitamin	200 µg
Vitamin B12	Vitamin	50 µg
Pantothenic Acid	Vitamin	50 mg
Calcium	Mineral	125 mg
Magnesium	Mineral	125 mg
Zinc	Mineral	25 mg
Selenium	Mineral	50 µg
Copper	Mineral	2 mg
Manganese	Mineral	100 mg
Chromium	Mineral	100 µg
Potassium	Mineral	25 mg
Hesperidin Complex	Blend	25 mg
Rutin	Other substance	25 mg
Bioflavonoids	Other substance	150 mg
Choline	Vitamin	9 mg
Inositol	Other substance	20 mg
PABA	Other substance	10 mg
L-Cysteine	Amino acid	75 mg
L-Histidine	Amino acid	25 mg
DL-Phenylalanine	Amino acid	100 mg
Omega-3 Fatty Acids	Fatty acid	100 mg
Trypsin	Enzyme	25 mg
Chymotrypsin	Enzyme	25 µg
Bromelain	Enzyme	150 mg
Bovine Tracheal Cartilage	Ingredient of animal origin	100 mg
Papain	Enzyme	25 mg
Raw Veal Bone	Ingredient of animal origin	25 mg
Yucca extract	Plant	100 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.

Source

Official label

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 26 April 2012 (register: Dietary Supplement Label Database (DSLD), US National Institutes of Health: current and off-market labels).

List recorded in 2012. Photograph the packaging to check whether it has changed. Photograph the packaging

Brand : Douglas Laboratories