The supplement product directory

Look up any bottle by name, brand, or barcode to see exactly what’s inside and how it interacts with medications. 214,830 products, all cross-linked to their ingredients.

🥇 Calcium is the most common supplement ingredient — found in ~38,000 products.
💊 We track 214,830 supplement products from 5,893 brands.
📦 The most common form is capsule (80,000 products).
🌿 1,452 ingredients carry pharmacist-reviewed interaction data.
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Find any product in the directory

Type a product, brand, ingredient/herb, DSLD ID, or a barcode (UPC) and jump straight to its page. This finds pages — it doesn’t check interactions.

AI points you to pages in our database. Confirm the exact product on its page. How we use AI

⚕️ Trying to check whether a drug interacts with a supplement? Our interaction checker answers that directly. Open the checker
The data at a glance

The 214,830-product catalog at a glance

Biggest brands

Brands with the most products in our directory. Tap to see all their products.

5,893brands tracked
~36products per brand, on average
5,595from BulkSupplements.com — the biggest

Product forms

How the supplements in our directory are delivered.

8 forms
  • Capsule 38%
  • Powder 17%
  • Tablet Or Pill 15%
  • Liquid 15%
  • Softgel Capsule 9%
  • Other (e.g. Tea Bag) 3%
  • Gummy Or Jelly 2%
  • Lozenge 0%

Browse every product

Switch to ingredients →
Showing products starting with “L” (10,537) Clear ×
L-Theanine by Momentous Capsule 60 Capsule(s) UPC 8 50030 79603 5 Ingredients & interactions → L-Theanine by SuperSmart Capsule 60 Vegetarian Capsule(s) UPC 5 453003 822660 Ingredients & interactions → L-Theanine by Dr. Berg Capsule 90 Capsule(s) Ingredients & interactions → L-Theanine by SuperiorLabs Capsule 90 Vegetable Capsule(s) UPC 8 50569 00619 3 Ingredients & interactions → L-Theanine by BulkSupplements.com Powder 250 Gram(s) · 8.8 Ounce(s) UPC X000HFGR0B Ingredients & interactions → L-Theanine by NutraBio Capsule 90 Capsule(s) UPC 6 49908 24516 0 Ingredients & interactions → L-Theanine by Earthborn Elements Capsule 200 Capsule(s) Ingredients & interactions → L-Theanine by NuMedica Capsule 120 Vegetable Capsule(s) UPC 8 12527 01235 6 Ingredients & interactions → L-Theanine (500 mg) by BulkSupplements.com Capsule 100 Gelatin Capsule(s) UPC X000OD1EHR Ingredients & interactions → L-Theanine (Double Strength) by Herbadiet Capsule 60 V-Cap(s) UPC 8 80343 49990 3 Ingredients & interactions → L-Theanine & Caffeine by SR Sports Research Softgel Capsule 60 Softgel(s) UPC 0 23249 01226 9 Ingredients & interactions → L-Theanine & Caffeine by Nutriana Capsule 60 Capsule(s) UPC X0028C766P Ingredients & interactions → L-Theanine + Caffeine by Sports Research Softgel Capsule 60 Softgel(s) UPC 0 23249 01226 9 Ingredients & interactions → L-Theanine 100 mg by Life Extension Capsule 60 Vegetarian Capsule(s) UPC 7 37870 16836 2 Ingredients & interactions → L-Theanine 100 mg by Lake Avenue Nutrition Capsule 180 Veggie Capsule(s) UPC 8 98220 01716 4 Ingredients & interactions → L-Theanine 100 mg by The Vitamin Shoppe Capsule 144 Capsule(s) UPC 7 66536 02755 2 Ingredients & interactions → L-Theanine 100 mg by PhysioLogics Capsule 60 Capsule(s) UPC 7 16963 12882 7 Off market Ingredients & interactions → L-Theanine 100 mg by CHK Nutrition Capsule 120 Vegetarian Cap(s) UPC 7 87500 08792 1 Ingredients & interactions → L-Theanine 100 mg by NOW Capsule 90 Veg Capsule(s) UPC 7 33739 00145 0 Off market Ingredients & interactions → L-Theanine 100 mg by Metabolic Maintenance Capsule 60 Capsule(s) UPC 8 38287 00146 1 Ingredients & interactions → L-Theanine 100 mg by California Gold Nutrition Capsule 30 Veggie Capsule(s) UPC 8 98220 01244 2 Off market Ingredients & interactions → L-Theanine 100 mg by Newflower Farmers Markets Capsule 60 Vegetarian Cap(s) Ingredients & interactions → L-Theanine 100 mg by Exchange Select Capsule 100 Capsule(s) UPC 6 14299 03840 0 Ingredients & interactions → L-Theanine 100 mg by PureFormulas Capsule 60 Vegetarian Capsule(s) UPC PUF1012 Off market Ingredients & interactions → L-Theanine 100 mg by Seeking Health Capsule 60 Vegetarian Capsule(s) UPC 8 28054 15499 5 Ingredients & interactions → L-Theanine 100 mg by Meijer Capsule 60 Veggie Capsule(s) UPC 7 60236 10359 2 Ingredients & interactions → L-Theanine 100 mg by Healthy Origins Capsule 180 Veggie Cap(s) UPC 6 03573 17005 9 Ingredients & interactions → L-Theanine 100 mg by Country Life Unknown 60 Smooth Melt(s) UPC 0 15794 01414 0 Off market Ingredients & interactions → L-Theanine 100 mg Mint Flavored by Country Life Tablet Or Pill 60 Chewable Tablet(s) UPC 0 15794 01414 0 Off market Ingredients & interactions → L-Theanine 100 mg Smooth Melts by Country Life Other (e.g. Tea Bag) 60 Smooth Melt(s) UPC 0 15794 01414 0 Ingredients & interactions → L-Theanine 100 mg Suntheanine by NOW Capsule 90 Vcap(s)(R) UPC 7 33739 00145 0 Off market Ingredients & interactions → L-Theanine 150 mg by BIOVEA Capsule 60 Vegetarian Capsule(s) UPC 8 18423 02287 1 Off market Ingredients & interactions →

🆕 What’s new

The latest supplement products added to our catalog — each one ready to check against your medications.

Dr. Brian Staiger, PharmD

Curated & reviewed by Dr. Brian Staiger, PharmD, BCPS and the HelloPharmacist pharmacy team.

Interaction data is built on Natural Medicines (Therapeutic Research Center) and official product labels from the NIH Dietary Supplement Label Database. Our data sources · Editorial Policy.

This directory is for information only and does not replace professional medical advice. It may not capture every possible interaction. Always confirm with your pharmacist or doctor before starting, stopping, or changing any medication or supplement.