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Dietary Supplement Label Database (DSLD)

Maintained by Reverse Age Lab · About the database, its history and how we keep it current ›

The NIH stopped updating its Dietary Supplement Label Database (DSLD) in September 2025. This is its continuation: every original label plus every label since.

233,682 labels140,861 on the marketNewest label: 31 October 2026

Searches product names, brands and every ingredient on the label. A barcode (UPC) finds its label exactly. Try magnesium glycinate or ashwagandha.

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3,950 labels found (1.7% of the database), showing the first 1,000

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“theanine”
  • On market
    DaVinci Laboratories
    L-Theanine 200 mg
    Net contents: 120 Capsule(s)
    Form: Capsule
    Date entered: 06/2023
  • On market
    Protocol For Life Balance
    L-Theanine 200 mg
    Net contents: 60 Veg Capsule(s)
    Form: Capsule
    Date entered: 06/2023
  • On market
    Herbadiet
    L-Theanine
    Net contents: 60 V Cap(s)
    Form: Capsule
    Date entered: 06/2023
  • On market
    Puritan's Pride
    L-Theanine 200 mg
    Net contents: 30 Rapid Release Capsule(s)
    Form: Capsule
    Date entered: 06/2023
  • On market
    Herbadiet
    L-Theanine Powder
    Net contents: N/A
    Form: Powder
    Date entered: 06/2023
  • On market
    Pure Encapsulations
    L-Theanine
    Net contents: 120 Capsule(s)
    Form: Capsule
    Date entered: 06/2023
  • On market
    Swiss BioEnergetics
    Rhodiola & Ashwagandha with L-Theanine
    Net contents: 90 Capsule(s)
    Form: Capsule
    Date entered: 05/2023
  • On market
    Nootropics Depot
    Caffeine + L-Theanine Capsules 200/100 mg
    Net contents: 180 Capsule(s)
    Form: Capsule
    Date entered: 05/2023
  • On market
    LuckyVitamin
    L-Theanine 200 mg
    Net contents: 120 Veg Capsule(s)
    Form: Capsule
    Date entered: 03/2023
  • On market
    Nootropics Depot
    L-Theanine Capsules 200 mg
    Net contents: 180 Capsule(s)
    Form: Capsule
    Date entered: 02/2023
  • On market
    Vali
    Caffeine & L-Theanine
    Net contents: 120 Vegetarian Capsule(s)
    Form: Capsule
    Date entered: 02/2023
  • On market
    Source Naturals Serene Science
    Theanine Serene with Relora
    Net contents: 60 Tablet(s)
    Form: Tablet or Pill
    Date entered: 01/2023
  • On market
    Natural Factors Stress-Relax
    Suntheanine L-Theanine 100 mg
    Net contents: 60 Chewable Tablet(s)
    Form: Tablet or Pill
    Date entered: 01/2023
  • On market
    Source Naturals Serene Science
    Theanine Serene
    Net contents: 60 Tablet(s)
    Form: Tablet or Pill
    Date entered: 01/2023
  • On market
    Natural Factors Stress-Relax
    Suntheanine L-Theanine 100 mg
    Net contents: 120 Chewable Tablet(s)
    Form: Tablet or Pill
    Date entered: 01/2023
  • On market
    Source Naturals Serene Science
    L-Theanine 200 mg
    Net contents: 60 Tablet(s)
    Form: Tablet or Pill
    Date entered: 01/2023
  • On market
    Klaire Labs
    L-Theanine
    Net contents: 60 Vegetarian Capsule(s)
    Form: Capsule
    Date entered: 12/2022
  • On market
    Country Life
    Magnesium Citrate + L-Theanine 400 mg Lavender Vanilla Flavor
    Net contents: 32 Fluid Ounce(s); 1 Quart(s); 946 mL
    Form: Liquid
    Date entered: 11/2022
  • On market
    Source Naturals Serene Science
    L-Theanine 200 mg
    Net contents: 60 Capsule(s)
    Form: Capsule
    Date entered: 10/2022
  • On market
    Natural Grocers by Vitamin Cottage
    Theanine 200 mg + Inositol
    Net contents: 60 Vegetarian Capsule(s)
    Form: Capsule
    Date entered: 09/2022

What this is

The Dietary Supplement Label Database holds the full text of dietary supplement labels sold in the United States: the Supplement Facts panel with every amount, unit and % Daily Value, blends with their total weight and order, other ingredients, serving size, the barcode and the form.

The NIH's Office of Dietary Supplements built the original and added its last labels on 25 September 2025. We carry it forward.

How it stays current

Every NIH label is kept as it was entered, with its NIH number, so links and citations still work. New labels come from the labels we read in our own product research, each marked with the date we read it and where. So far 18,902 labels have been added since the NIH stopped.

Who it is for

Researchers, dietitians, librarians, journalists and shoppers who need to know exactly what a label says. It is free, with no account.

Found a label that is wrong or missing? Tell us.

Labels only: each label is shown as printed on the bottle, with no grades, rankings or advice. A label in this database is not an endorsement of the product. Reverse Age Lab is not affiliated with, or endorsed by, the National Institutes of Health or its Office of Dietary Supplements. The original labels come from the NIH’s public-domain data; the labels since are read by us. The NIH's own site stays at dsld.od.nih.gov.