Supplement brand
GNC
Every GNC supplement product in our database — with full label data and a pharmacist-reviewed check for interactions with your medications.
848Products
304On the market
9Dosage forms
What's inside
Ingredients GNC uses most
The ingredients that appear across GNC products. Tap one to see how it interacts with medications.
Calcium
Vitamin C
Vitamin D
Vitamin B12
Carbohydrate
Magnesium
Vitamin B6
Niacin ascorbate
Biotin
Folate
Riboflavin
Thiamin
Pantothenic Acid (Vitamin B5)
Zinc
Fat (unspecified)
Sucrose
Vitamin E
Choline
The full range
GNC products
Open any product to see its complete ingredient list and every drug interaction we check for it.
Tablet Or Pill · 225
Other (e.g. Tea Bag) · 204
Capsule · 195
Softgel Capsule · 136
Lozenge · 22
Powder · 22
Unknown · 15
Gummy Or Jelly · 15
Liquid · 14
L-Carnitine 500 mg
View ingredients & interactions
L-Carnitine 500 mg
View ingredients & interactions
L-Glutamine 1000 mg
View ingredients & interactions
L-Glutamine 500
View ingredients & interactions
L-Glutathione 50
View ingredients & interactions
L-Glutathione 500 mg
View ingredients & interactions
L-Glutathione 500 mg
View ingredients & interactions
L-Glutathione 500 mg
View ingredients & interactions
L-Lysine 1000
View ingredients & interactions
L-Lysine 1000 mg
View ingredients & interactions
L-Lysine 1000 mg
View ingredients & interactions
L-Lysine 500
View ingredients & interactions
L-Lysine 500
View ingredients & interactions
L-Lysine 500 mg
View ingredients & interactions
L-Lysine 500 mg
View ingredients & interactions
L-Lysine 500 mg
View ingredients & interactions
L-Theanine 200 mg
View ingredients & interactions
L-Tyrosine 1000 mg
View ingredients & interactions
L-Tyrosine 500 mg
View ingredients & interactions
Liquid B-Complex Natural Orange Flavor
View ingredients & interactions
Liquid Multi Colloidal Minerals
View ingredients & interactions
Liquid Ultra Mega Multivitamin Natural Citrus Flavor
View ingredients & interactions
Liquid Vitamin B-12 Natural Cherry Flavor
View ingredients & interactions
Lutein 20 mg
View ingredients & interactions
Every GNC product
Jump to a letter to see those products. One entry per product — label re-issues of the same item share a page.
Showing 1 product starting with “5”.
Checking a GNC product against your meds?
Search any supplement or ingredient and we'll flag interactions, graded and pharmacist-reviewed.