NSF Product and Service Listings

These NSF Official Listings are current as of Friday, November 6, 2026 at 12:15 a.m. Eastern Time. Please contact NSF to confirm the status of any Listing, report errors, or make suggestions.

Alert: NSF is concerned about fraudulent downloading and manipulation of website text. Always confirm this information by clicking on the below link for the most accurate information: http://info.nsf.org/Certified/Dietary/Listings.asp?CompanyName=double+wood&Standard=173&

NSF/ANSI Standard 173
Dietary Supplements

 
Double Wood LLC 
205 Elmwood Avenue
Sharon Hill, PA 19079 
United States 
570-437-0203

Facility : Temple, AZ

Finished Products

Trade Designation Product ID Product Form Manufacturer's Recommended
Daily Serving Size
Lipid
Phosphatidyl Serine 300 mg All Capsule 6 capsules
Mineral
Magnesium Glycinate 400 mg All Capsules 4 capsules
Magnesium L-Threonate All Capsule 8 capsules

Facility : Twin Falls, ID

Finished Products

Trade Designation Product ID Product Form Manufacturer's Recommended
Daily Serving Size
Mineral
Magnesium Glycinate 400 mg All Capsule 4 capsules

Facility : Farmingdale, NY

Finished Products

Trade Designation Product ID Product Form Manufacturer's Recommended
Daily Serving Size
Antioxidant/Immune Aid
Citrus Bergamot Extract 1000 mg All Capsule 3 capsules
Botanical
Apigenin 50 mg All Capsule 1 capsule
Lion’s Mane Mushroom 500 mg All Capsule 6 capsules
Digestive Aid
Tudca 500 mg All Capsule 1, 2
Lipid
Phosphatidyl Serine 300 mg All Capsule 6 capsules
Mineral
Magnesium Glycinate 400 mg All Capsule 4 capsules
Magnesium L-Threonate All Capsule 8 capsules
Number of matching Manufacturers is 1
Number of matching Products is 11
Processing time was 1 seconds