No known drug interactions for the matched ingredients — not a guarantee none exist. Check your meds →
Dietary supplement

Usnea Lichen Moss 450 mg Ingredients & Drug Interactions

by TerraVita Premium Collection

Usnea Lichen Moss 450 mg label
See full label image
Capsule Category: Botanical
No known interaction
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Usnea Lichen Moss 450 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line No known interaction

Usnea Lichen Moss 450 mg is a dietary supplement by TerraVita Premium Collection with 1 active ingredient. Its ingredients are commonly taken for sore throat, skin and wound care, respiratory infections.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.

Jump to a section

HelloPharmacist Scorecard of Usnea Lichen Moss 450 mg by TerraVita Premium Collection

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: usnea lichen moss at 450 mg per capsule. The capsule itself is made from gelatin and water (inactive ingredients that help deliver the dose).

Usnea is a type of lichen — a symbiotic organism made of fungus and algae — traditionally used in herbal practice. The ingredient contains usnic acid, which is the compound responsible for both its potential benefits and its safety concerns when taken by mouth.

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

This is a single-ingredient Usnea product and its label doesn't state a use — see Usnea's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence for usnea isn't established in the data we hold. For cough, obesity, acute pain, wound healing, and tinea pedis (athlete's foot), the ratings are insufficient reliable evidence — meaning the current research doesn't support a clear claim that it works for any of these uses.

If you're considering this product for a specific health goal, talk with your pharmacist about what the science actually shows.

The evidence, ingredient by ingredient Usnea

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Oral usnea — which is what's in this capsule — raises a real safety flag. The usnic acid in usnea has been linked to liver damage (hepatotoxicity) when taken by mouth.

The data says oral usnea might be unsafe, so this is not a product to take lightly, especially if you have liver disease. The safety data advises against use during pregnancy and while breastfeeding due to insufficient safety information.

If you're pregnant, planning to become pregnant, or nursing, do not take this product without talking to your doctor first.

Side effects, ingredient by ingredient Usnea

Meds to double-check

No known interactions
Known Interaction Concern · database check
No known interactions

No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.

Why this rating?
  • None of the 1 matched ingredient has a documented medication interaction on file.

No interactions are documented in our data for the ingredients we could check. However, given the liver safety concerns with oral usnea, speak with your pharmacist before adding this supplement if you take any medication that affects your liver or if you have liver disease.

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.

Usnea lichen moss is not recommended for oral use given the liver safety concerns tied to usnic acid and the lack of solid evidence for its claimed benefits. If you're interested in it for cough, pain, wound healing, or another purpose, have a conversation with your pharmacist about safer, better-studied alternatives.

Definitely avoid it if you're pregnant or breastfeeding.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Feb 21, 2023.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Usnea Lichen Moss 450 mg, straight from the product label.

Brand TerraVita Premium Collection
Barcode (UPC) 064435148997
Net contents 100 Capsule(s)
Market status On market
Date entered into DSLD Feb 21, 2023
DSLD ID 287011
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Usnea Lichen Moss 450 mg by TerraVita Premium Collection, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
100
UPC/BARCODE
064435148997
IngredientAmount% DV
Usnea Lichen Moss450 mg--

Other ingredients: Gelatin, Water

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
FDA Statement of Identity

A Dietary Supplement

Brand IP Statement(s)

Copyright 2005 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Suggested/Recommended/Usage/Directions

Directions Take 1 capsule, 3 times daily, with meals.

General Statements

TerraVita is an exclusive line of premium natural products that use the finest, purest and most potent ingredients in the world. TerraVita's hallmarks are the highest possible standards of purity, potency, stability and freshness. All products are prepared with the greatest quality control, from raw materials through the entire manufacturing process, right up to the moment your product is sealed for freshness and shipped to you.

Please recycle!

FDA Disclaimer Statement

Statements not evaluated by FDA. Product not intended to diagnose, treat, cure, or prevent any disease.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Usnea Lichen Moss 450 mg by TerraVita Premium Collection label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Usnea Lichen Moss 450 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Usnea Lichen Moss 450 mg by TerraVita Premium Collection

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container100 Amounts shown are per serving.

Usnea Lichen Moss

No known
interactions
450 mg per serving

Usnea is a lichen used in traditional herbal medicine, mainly for sore throats, skin infections, and as a general antimicrobial. Laboratory studies su...

Usnea Lichen Moss monograph & interactions

Other (inactive) ingredients: Gelatin, Water. These complete the product’s ingredient list but are not active constituents.

Interaction report

Usnea Lichen Moss 450 mg by TerraVita Premium Collection Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in Usnea Lichen Moss 450 mg. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.

The maker

Brand information

Manufacturer and brand details for Usnea Lichen Moss 450 mg, from the product label.

TerraVita Premium Collection

See all TerraVita Premium Collection products
Name
TerraVita Fine Whole Herbs
City
Brampton
State
Ontario
Pharmacist Counseling Corner

Usnea Lichen Moss 450 mg by TerraVita Premium Collection: Common Questions

Does Usnea Lichen Moss 450 mg by TerraVita Premium Collection interact with any medications?
We do not currently list a known interaction for the mapped ingredients in Usnea Lichen Moss 450 mg. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
Usnea Lichen Moss 450 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is usnea safe to take by mouth?
The data raises concerns. Usnea taken orally contains usnic acid, which has been linked to liver damage. While topical usnea (creams, salves on skin) is generally well tolerated, oral use might be unsafe — especially for people with liver problems.
Can I take this while pregnant or breastfeeding?
No. The safety data advises against use during pregnancy and while breastfeeding because there isn't enough information to know it's safe. Talk with your doctor before considering any supplement during these times.
Does usnea actually work for cough or pain?
The evidence isn't established. For cough, pain, and the other uses this product is marketed for, we hold only insufficient reliable evidence — meaning current research doesn't support a clear claim that it works.
What's usnic acid and why does it matter?
Usnic acid is the main active compound in usnea lichen. It's the ingredient linked to the liver safety concerns when usnea is taken by mouth. It's also what can cause skin irritation and allergic reactions if usnea is applied topically.
Are there any common side effects from taking this?
We don't have detailed information on side effects from oral usnea, but the serious concern is the potential for liver damage. Topically, usnic acid can cause skin irritation, contact dermatitis, and in rare cases, allergic reactions with respiratory symptoms.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Usnea Lichen Moss 450 mg is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Usnea Lichen Moss 450 mg label
Go deeper

The Full Monographs Behind Usnea Lichen Moss 450 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Usnea

Usnea is a lichen used in traditional herbal medicine, mainly for sore throats, skin infections, and as a general antimicrobial. Laboratory studies suggest its main compound, usnic acid, can...

Read the full Usnea monograph →
Sources

Sources & How We Checked

Usnea Lichen Moss 450 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 10 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Usnea 10 references
  1. Favreau JT, Ryu Ml, Braunstein G, et al. Severe hepatotoxicity associated with the dietary supplement LipoKinetix. Ann Intern Med 2002;136:590-5. PubMed
  2. Ingolfsdottir K. Usnic acid. Phytochemistry 2002;61:729-36.
  3. Scirpa, P., Scambia, G., Masciullo, V., Battaglia, F., Foti, E., Lopez, R., Villa, P., Malecore, M., and Mancuso, S. [A zinc sulfate and usnic acid preparation used as post-surgical adjuvant therapy in genital lesions by Human Papillomavirus]. Minerva Gin
  4. Mitchell, J. C. Allergy to lichens. Allergic contact dermatitis from usnic acid produced by lichenized fungi. Arch Dermatol 1965;92(2):142-146.
  5. Durazo, F. A., Lassman, C., Han, S. H., Saab, S., Lee, N. P., Kawano, M., Saggi, B., Gordon, S., Farmer, D. G., Yersiz, H., Goldstein, R. L., Ghobrial, M., and Busuttil, R. W. Fulminant liver failure due to usnic acid for weight loss. Am.J Gastroenterol. PubMed
  6. Neff, G. W., Reddy, K. R., Durazo, F. A., Meyer, D., Marrero, R., and Kaplowitz, N. Severe hepatotoxicity associated with the use of weight loss diet supplements containing ma huang or usnic acid. J Hepatol. 2004;41(6):1062-1064. PubMed
  7. Hsu, L. M., Huang, Y. S., Chang, F. Y., and Lee, S. D. 'Fat burner' herb, usnic Acid, induced acute hepatitis in a family. J Gastroenterol.Hepatol. 2005;20(7):1138-1139. PubMed
  8. Arneborn, P., Jansson, A., and Bottiger, Y. [Acute hepatitis in a woman after intake of slimming pills bought via Internet]. Lakartidningen 7-11-2005;102(28-29):2071-2072.
  9. Sanchez, W., Maple, J. T., Burgart, L. J., and Kamath, P. S. Severe hepatotoxicity associated with use of a dietary supplement containing usnic acid. Mayo Clin Proc 2006;81(4):541-544. PubMed
  10. Rafanelli, S., Bacchilega, R., Stanganelli, I., and Rafanelli, A. Contact dermatitis from usnic acid in vaginal ovules. Contact Dermatitis 1995;33(4):271-272. PubMed

See these in context on the Usnea monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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