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.

Find a page

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

Browse every product

Switch to ingredients →
Showing products starting with “L” (10,537) Clear ×
L-Theanine 250 mg by Arazo Nutrition Capsule 120 Capsule(s) UPC X001MCX3XH Ingredients & interactions → L-Theanine 300 by Everyday Health Capsule 90 Capsule(s) UPC 9 421902 427312 Ingredients & interactions → L-Theanine 400 mg by Mental Refreshment Capsule 180 Capsule(s) UPC 7 15854 66471 0 Ingredients & interactions → L-Theanine 400 mg by OL Olympian Labs, Inc. Capsule 60 Vegetarian Capsule(s) UPC 7 10013 03231 7 Ingredients & interactions → L-Theanine 500 mg by BulkSupplements.com Capsule 100 Vegetarian Capsule(s) Ingredients & interactions → L-Theanine Calm Caps by Nature's Truth Capsule 90 Vegetarian Capsule(s) UPC 8 40093 11398 6 Ingredients & interactions → L-Theanine Capsules 200 mg by Nootropics Depot Capsule 180 Capsule(s) Off market Ingredients & interactions → L-Theanine Chewable 200 mg Tropical Fruit by Nature Made Tablet Or Pill 50 Tablet(s) UPC 0 31604 00258 9 Ingredients & interactions → L-Theanine Chewables 200 mg Natural Lemon Lime Flavor by Solaray Tablet Or Pill 30 Chewable(s) UPC 0 76280 97512 3 Ingredients & interactions → L-Theanine Complex by Solgar Capsule 60 Vegetable Capsule(s) UPC 0 33984 02705 3 Off market Ingredients & interactions → L-Theanine Double Strength - 200 mg by NOW Capsule 60 Veg Capsule(s) UPC 7 33739 00147 4 Off market Ingredients & interactions → L-Theanine Extra Strength by BRI Nutrition Capsule 60 Capsule(s) UPC X000RTQAEP Ingredients & interactions → L-Theanine Liquid by NuMedica Liquid 2 fl. Oz. · 60 mL UPC 8 12527 01307 0 Ingredients & interactions → L-Theanine Liquid Natural Lemon Flavor by NuMedica Liquid 2 fl. Oz. · 60 mL UPC 8 12527 01307 0 Off market Ingredients & interactions → L-Theanine Powder by Nootropics Depot Powder 4.4 Ounce(s) · 125 Gram(s) Ingredients & interactions → L-Theanine Powder by Herbadiet Powder Ingredients & interactions → L-Theanine Relax 200 mg Refreshing Mint by GNC Tablet Or Pill 60 Chewable Tablet(s) UPC 0 48107 16325 9 Ingredients & interactions → L-Theanine Solution by Natrium Health Liquid 60 mL · 2 Fluid Ounce(s) Ingredients & interactions → L-Theanine Stress Formula with Calming Blend by Sundown Naturals Capsule 60 Capsule(s) UPC 0 30768 52676 4 Off market Ingredients & interactions → L-Theanine With Green Tea 200 mg by Solaray Capsule 45 VegCap(s) UPC 0 76280 04992 3 Ingredients & interactions → L-Theanine With Suntheanine 150 mg by Doctor's Best Capsule 90 Veggie Cap(s) UPC 7 53950 00197 8 Off market Ingredients & interactions → L-Threonine by BulkSupplements.com Powder 250 Gram(s) · 8.8 oz UPC X000IOD0Z1 Ingredients & interactions → L-Threonine 500 mg by Douglas Laboratories Capsule 60 Capsule(s) UPC 3 10539 00577 4 Off market Ingredients & interactions → L-Threonine 500 mg by Solgar Capsule 100 Vegetable Capsule(s) UPC 0 33984 02710 7 Off market Ingredients & interactions → L-Threonine 500 mg by Vitamatic Capsule 120 Vegetable Capsule(s) UPC 8 10078 47117 2 Ingredients & interactions → L-Threonine 500 mg Capsules by BulkSupplements.com Capsule 120 Capsule(s) UPC X003K4KI6Z Ingredients & interactions → L-Tox by MM Sports Nutrition Capsule 60 Capsule(s) UPC 6 91381 22795 9 Ingredients & interactions → L-Tryosine 500 mg by Village Vitality Capsule 90 Capsule(s) Ingredients & interactions → L-Tryptophan by Douglas Laboratories Capsule 60 Vegetarian Capsules UPC 3 10539 03414 9 Ingredients & interactions → L-Tryptophan by Herbadiet Capsule 60 V-Cap(s) UPC 8 80752 50168 6 Ingredients & interactions → L-Tryptophan by BulkSupplements.com Powder 50 Gram(s) · 1.76 oz UPC X000J3IVRX Ingredients & interactions → L-Tryptophan by SuperiorLabs Capsule 120 Vegetable Capsule(s) UPC 8 50569 00620 9 Ingredients & interactions → L-Tryptophan by Thorne Research Capsule 60 Vegetarian Capsule(s) UPC 6 93749 50101 5 Off market Ingredients & interactions → L-Tryptophan by Source Naturals Tablet Or Pill 120 Tablet(s) UPC 0 21078 01980 0 Off market Ingredients & interactions → L-Tryptophan by Vitamin Research Products Capsule 90 Capsule(s) UPC 8 92727 00012 4 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.