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

Usnea Lichen Moss Vanilla Flavor Ingredients & Drug Interactions

by TerraVita

Usnea Lichen Moss Vanilla Flavor label
See full label image
Liquid Category: Botanical
No known interaction
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Usnea Lichen Moss Vanilla Flavor 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 Vanilla Flavor is a dietary supplement by TerraVita 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 Vanilla Flavor by TerraVita

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 Glycerite Liquid Extract. Usnea is a lichen (a symbiotic organism that grows on tree bark) prepared as a liquid extract in glycerin.

The inactive ingredients are glycerin itself and vanilla flavor.

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. The product lists six potential uses — cough, obesity, acute pain, wound healing, and tinea pedis (a fungal foot infection) — but each one is rated as having insufficient reliable evidence to rate.

That means the research either isn't there yet or isn't strong enough to say whether it works.

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.

Here's where you need to pay attention. Usnea contains usnic acid, a compound that's been linked to liver damage when taken by mouth.

The safety data says to avoid this product during pregnancy and while breastfeeding because there isn't enough information to know it's safe. When applied to skin, usnea is generally well tolerated, but usnic acid can cause contact dermatitis, local irritation, and rarely conjunctivitis (eye inflammation).

Since this is a liquid extract meant for oral use, the oral safety concerns apply.

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. That said, because this product contains usnic acid and carries liver safety concerns, anyone with liver disease or taking medications that affect the liver should discuss it with their pharmacist first.

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.

Because the safety data advises against taking usnea by mouth due to potential liver damage from usnic acid, and because effectiveness evidence is insufficient for the claimed uses, most people should talk with their pharmacist or doctor before using this product. If you're pregnant, nursing, or have liver concerns, avoid it.

Topical usnea products are a different story — those are generally better tolerated — but this is an oral liquid.

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 Nov 22, 2022.

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 Vanilla Flavor, straight from the product label.

Brand TerraVita
Barcode (UPC) 064435234133
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Nov 22, 2022
DSLD ID 280781
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
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 Vanilla Flavor by TerraVita, 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:
25 Drop(s)
Maximum serving Sizes:
40 Drop(s)
Servings per container
227
UPC/BARCODE
064435234133
IngredientAmount% DV
Usnea Lichen Moss Glycerite Liquid Extract0.13 mL--

Other ingredients: Glycerin, Vanilla flavor

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.
Brand IP Statement(s)

Copyright 2018 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Formula

Glycerite liquid extract (1:5) Vanilla flavored

Formulation

Alcohol free

Suggested/Recommended/Usage/Directions

Suggested Use: Take 25-40 drops of extract in a small amount of warm water 3-4 times daily. Shake well before using.

Precautions

Keep away from children.

Do not use if safety seal around cap is broken or missing.

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

See for yourself

Usnea Lichen Moss Vanilla Flavor by TerraVita label

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

Usnea Lichen Moss Vanilla Flavor 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 Vanilla Flavor by TerraVita

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

Serving size25 Drop(s) Dosage formLiquid Servings per container227 Amounts shown are per serving.

Usnea Lichen Moss Glycerite Liquid Extract

No known
interactions
0.13 mL 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 Glycerite Liquid Extract monograph & interactions

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

Interaction report

Usnea Lichen Moss Vanilla Flavor by TerraVita Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in Usnea Lichen Moss Vanilla Flavor. 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 Vanilla Flavor, from the product label.

TerraVita

See all TerraVita products
Name
ZooScape LLC
Phone Number
844-449-0444
Web Address
www.ZooScape.com
Pharmacist Counseling Corner

Usnea Lichen Moss Vanilla Flavor by TerraVita: Common Questions

Does Usnea Lichen Moss Vanilla Flavor by TerraVita interact with any medications?
We do not currently list a known interaction for the mapped ingredients in Usnea Lichen Moss Vanilla Flavor. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
Usnea Lichen Moss Vanilla Flavor 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 it safe to take this while I'm pregnant?
No. The safety data says to avoid usnea during pregnancy because there isn't enough information to know it's safe. Talk with your doctor or pharmacist about what's right for you.
Can I use this while breastfeeding?
No. The safety data advises against using usnea while breastfeeding due to insufficient safety information. Check with your doctor or pharmacist before taking any supplement while nursing.
What is usnic acid and why is it a concern?
Usnic acid is a compound found naturally in usnea. When taken by mouth, it's been linked to liver damage. That's why the safety notes caution against oral use of this product, even though topical usnea is generally well tolerated.
Does this really work for cough or pain?
The evidence isn't established. All the uses listed — cough, pain, wound healing, and others — are rated as having insufficient reliable evidence. That means we don't have strong research showing whether it works.
What are the most common side effects?
There's limited information about side effects from oral usnea. When applied to skin, it can cause contact dermatitis, local irritation, or rarely conjunctivitis. Since this is an oral liquid, the main concern is potential liver damage from the usnic acid content.

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

Not sure if Usnea Lichen Moss Vanilla Flavor 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 Vanilla Flavor label
Go deeper

The Full Monographs Behind Usnea Lichen Moss Vanilla Flavor’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 Vanilla Flavor'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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