{"product_id":"usnea-lichen","title":"Usnea Lichen","description":"\u003ch1\u003e\u003cstrong\u003eUSNEA BARBATA\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cem\u003e(Old Man’s Beard, Beard Lichen)\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFamily:\u003c\/strong\u003e Parmeliaceae\u003cbr\u003e\u003cstrong\u003ePart Used:\u003c\/strong\u003e Thallus (lichen body)\u003cbr\u003e\u003cstrong\u003eEnergetics:\u003c\/strong\u003e Cooling, drying, dispersing\u003cbr\u003e\u003cstrong\u003eTaste:\u003c\/strong\u003e Bitter, slightly acrid\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eBOTANICAL IDENTIFICATION\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eScientific Name:\u003c\/strong\u003e \u003cem\u003eUsnea barbata\u003c\/em\u003e (L.) F.H. Wigg.\u003cbr\u003e\u003cstrong\u003eCommon Names:\u003c\/strong\u003e Old Man’s Beard, Beard Lichen\u003cbr\u003e\u003cstrong\u003eFamily:\u003c\/strong\u003e Parmeliaceae\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMorphology:\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eUsnea barbata\u003c\/em\u003e is a \u003cstrong\u003efruticose lichen\u003c\/strong\u003e, forming long, hair-like, pendulous strands that can reach \u003cstrong\u003e10–30 cm (4–12 in)\u003c\/strong\u003e or more in length. The thallus is pale green to yellow-green when dry and bright green when moist. A defining diagnostic feature is the \u003cstrong\u003eelastic white central cord\u003c\/strong\u003e (medulla) visible when a strand is gently pulled apart.\u003c\/p\u003e\n\u003cp\u003eAs a lichen, \u003cem\u003eUsnea\u003c\/em\u003e is a \u003cstrong\u003esymbiotic organism\u003c\/strong\u003e, composed of a fungal partner (mycobiont) and a photosynthetic partner (green algae). It does not have true leaves, stems, or roots, but absorbs nutrients and moisture directly from the air.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAttachment system:\u003c\/strong\u003e\u003cbr\u003eAnchors loosely to tree bark or branches via a basal holdfast without parasitizing the host tree.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eHABITAT, RANGE, AND ADAPTATIONS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eUsnea barbata\u003c\/em\u003e is native to \u003cstrong\u003etemperate and boreal regions of Europe, Asia, and North America\u003c\/strong\u003e, favoring \u003cstrong\u003eclean-air environments\u003c\/strong\u003e such as old-growth forests, mountainous regions, and coastal fog zones.\u003c\/p\u003e\n\u003cp\u003eIt thrives in \u003cstrong\u003ehumid, well-ventilated ecosystems\u003c\/strong\u003e with minimal air pollution. Because it absorbs nutrients directly from the atmosphere, \u003cem\u003eUsnea\u003c\/em\u003e is extremely sensitive to pollutants and serves as a \u003cstrong\u003ebioindicator of air quality\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAdaptations include production of potent \u003cstrong\u003esecondary metabolites\u003c\/strong\u003e, particularly usnic acid, which protect against microbial invasion, UV radiation, and competition from other microorganisms.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eCULTIVATION AND ECOLOGY\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eUsnea barbata\u003c\/em\u003e \u003cstrong\u003ecannot be cultivated conventionally\u003c\/strong\u003e. It grows very slowly, often taking years to regenerate after disturbance.\u003c\/p\u003e\n\u003cp\u003eEcologically, it plays an important role in \u003cstrong\u003enutrient cycling\u003c\/strong\u003e, moisture retention, and providing habitat for insects. It contributes to forest microclimates and reflects ecosystem health.\u003c\/p\u003e\n\u003cp\u003eBecause of its slow growth and sensitivity, \u003cem\u003eUsnea\u003c\/em\u003e is especially vulnerable to overharvesting.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eTRADITIONAL AND ETHNOBOTANICAL USE\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eUsnea\u003c\/em\u003e species have been used across \u003cstrong\u003eEuropean, Indigenous North American, and Asian traditions\u003c\/strong\u003e as powerful \u003cstrong\u003eantimicrobial and wound-healing agents\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIndigenous peoples used \u003cem\u003eUsnea\u003c\/em\u003e externally for \u003cstrong\u003ewounds, burns, ulcers, and infections\u003c\/strong\u003e, and internally for \u003cstrong\u003erespiratory and urinary infections\u003c\/strong\u003e. It was also used as an emergency wound dressing due to its absorbent and antiseptic properties.\u003c\/p\u003e\n\u003cp\u003eIn European folk medicine, \u003cem\u003eUsnea\u003c\/em\u003e was employed for \u003cstrong\u003etuberculosis-like lung conditions, sore throats, and skin infections\u003c\/strong\u003e. During times of scarcity, it was used as a survival antimicrobial when conventional herbs were unavailable.\u003c\/p\u003e\n\u003cp\u003eModern herbalism recognizes \u003cem\u003eUsnea barbata\u003c\/em\u003e as a \u003cstrong\u003ebroad-spectrum antimicrobial\u003c\/strong\u003e, particularly effective against \u003cstrong\u003egram-positive bacteria\u003c\/strong\u003e, and values it as a botanical alternative to topical antibiotics.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY BIOACTIVE COMPOUNDS AND BENEFITS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCompound Class\u003c\/th\u003e\n\u003cth\u003eRepresentative Compounds\u003c\/th\u003e\n\u003cth\u003eRole in Organism\u003c\/th\u003e\n\u003cth\u003eHuman Benefits\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDibenzofurans\u003c\/td\u003e\n\u003ctd\u003eUsnic acid\u003c\/td\u003e\n\u003ctd\u003ePotent antimicrobial defense\u003c\/td\u003e\n\u003ctd\u003eAntibacterial, antifungal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepsides\u003c\/td\u003e\n\u003ctd\u003eBarbatinic acid\u003c\/td\u003e\n\u003ctd\u003eStructural and chemical protection\u003c\/td\u003e\n\u003ctd\u003eAntioxidant, antimicrobial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepsidones\u003c\/td\u003e\n\u003ctd\u003eSalazinic acid\u003c\/td\u003e\n\u003ctd\u003eUV and microbial defense\u003c\/td\u003e\n\u003ctd\u003eAnti-inflammatory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolysaccharides\u003c\/td\u003e\n\u003ctd\u003eLichenan\u003c\/td\u003e\n\u003ctd\u003eStructural matrix\u003c\/td\u003e\n\u003ctd\u003eDemulcent, immune-modulating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhenolic acids\u003c\/td\u003e\n\u003ctd\u003eVarious lichen acids\u003c\/td\u003e\n\u003ctd\u003eCompetitive inhibition\u003c\/td\u003e\n\u003ctd\u003eAntimicrobial support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eUsnic acid is the primary bioactive compound responsible for \u003cem\u003eUsnea\u003c\/em\u003e’s strong antimicrobial activity.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eHOW IT WORKS IN THE BODY\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAntimicrobial Action:\u003c\/strong\u003e\u003cbr\u003eUsnic acid disrupts bacterial ATP synthesis and cell membrane integrity, making \u003cem\u003eUsnea\u003c\/em\u003e particularly effective against \u003cstrong\u003egram-positive organisms\u003c\/strong\u003e such as \u003cem\u003eStaphylococcus\u003c\/em\u003e and \u003cem\u003eStreptococcus\u003c\/em\u003e species.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRespiratory and Urinary Support:\u003c\/strong\u003e\u003cbr\u003eInternally, \u003cem\u003eUsnea\u003c\/em\u003e helps reduce microbial load in respiratory and urinary tracts while its polysaccharides soothe irritated mucosa.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTopical Wound Healing:\u003c\/strong\u003e\u003cbr\u003eApplied externally, \u003cem\u003eUsnea\u003c\/em\u003e inhibits infection while supporting tissue repair without suppressing normal healing responses.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eACTIONS AND INDICATIONS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eUsnea barbata\u003c\/em\u003e acts as a \u003cstrong\u003ebroad-spectrum antimicrobial, antifungal, anti-inflammatory, immune-modulating, and wound-healing agent\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is indicated for \u003cstrong\u003erespiratory infections, sore throat, bronchitis, urinary tract infections, skin infections, wounds, abscesses, fungal infections, and slow-healing tissues\u003c\/strong\u003e, particularly when infection is present without heavy systemic toxicity.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003ePREPARATIONS AND DOSAGE\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003cth\u003ePreparation\u003c\/th\u003e\n\u003cth\u003eSuggested Dose\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTincture (1:5, 60–95%)\u003c\/td\u003e\n\u003ctd\u003eDried lichen\u003c\/td\u003e\n\u003ctd\u003e1–3 mL, 2–3× daily\u003c\/td\u003e\n\u003ctd\u003ePreferred internal form\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDecoction\u003c\/td\u003e\n\u003ctd\u003e½–1 tsp lichen per cup water; simmer 20–30 min\u003c\/td\u003e\n\u003ctd\u003e1 cup, up to 2× daily\u003c\/td\u003e\n\u003ctd\u003eBitter; less efficient extraction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTopical powder\u003c\/td\u003e\n\u003ctd\u003eDried, powdered lichen\u003c\/td\u003e\n\u003ctd\u003eApply directly\u003c\/td\u003e\n\u003ctd\u003eWounds, infections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSalve\u003c\/td\u003e\n\u003ctd\u003eAlcohol extract infused into oil\u003c\/td\u003e\n\u003ctd\u003eApply externally\u003c\/td\u003e\n\u003ctd\u003eSkin infections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eUsnea\u003c\/em\u003e pairs well with \u003cstrong\u003eEchinacea\u003c\/strong\u003e, \u003cstrong\u003eWhite Pine Bark\u003c\/strong\u003e, \u003cstrong\u003eYerba Santa\u003c\/strong\u003e, and \u003cstrong\u003eCalendula\u003c\/strong\u003e for antimicrobial and tissue-healing formulas.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eSAFETY, CONTRAINDICATIONS, AND TOXICITY\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eUsnea barbata\u003c\/em\u003e should be used \u003cstrong\u003ewith care internally\u003c\/strong\u003e, especially in high doses or long-term use.\u003c\/p\u003e\n\u003cp\u003eThere are concerns regarding \u003cstrong\u003ehepatotoxicity associated with isolated usnic acid\u003c\/strong\u003e, particularly in concentrated supplements. Whole-plant preparations appear significantly safer when used appropriately and short-term.\u003c\/p\u003e\n\u003cp\u003eAvoid use during \u003cstrong\u003epregnancy and lactation\u003c\/strong\u003e, and in individuals with \u003cstrong\u003epre-existing liver disease\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eGeneral Toxicological Reference (LD₅₀)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhole \u003cem\u003eUsnea barbata\u003c\/em\u003e preparations:\u003c\/strong\u003e\u003cbr\u003eAcute oral toxicity studies in animals suggest \u003cstrong\u003elow to moderate toxicity\u003c\/strong\u003e, with LD₅₀ values generally \u003cstrong\u003e\u0026gt;1,000–2,000 mg\/kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIsolated usnic acid:\u003c\/strong\u003e\u003cbr\u003eOral LD₅₀ in rodents reported approximately \u003cstrong\u003e25–100 mg\/kg\u003c\/strong\u003e, with documented hepatotoxic risk at high or chronic doses\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eClinical relevance:\u003c\/strong\u003e\u003cbr\u003eWhole-lignan preparations have a \u003cstrong\u003emuch wider safety margin\u003c\/strong\u003e than isolated usnic acid. Internal use should be \u003cstrong\u003eshort-term and moderate\u003c\/strong\u003e, while topical use is considered very safe.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eHARVEST AND PROCESSING\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eOnly \u003cstrong\u003efallen or wind-dislodged \u003cem\u003eUsnea\u003c\/em\u003e\u003c\/strong\u003e should be harvested. Never strip from living trees or branches.\u003c\/p\u003e\n\u003cp\u003eMaterial is air-dried thoroughly and stored airtight. Properly dried lichen retains potency for \u003cstrong\u003e3–5 years\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eSUSTAINABILITY AND CONSERVATION\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eUsnea barbata\u003c\/em\u003e grows \u003cstrong\u003eextremely slowly\u003c\/strong\u003e and is highly sensitive to environmental disturbance and pollution.\u003c\/p\u003e\n\u003cp\u003eEthical practice requires \u003cstrong\u003eminimal, non-destructive harvest\u003c\/strong\u003e, reliance on fallen material, and respect for its role as an air-quality indicator. Overharvesting can permanently damage local populations.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eSUMMARY\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eUsnea barbata\u003c\/em\u003e is a \u003cstrong\u003emedicine of the forest air\u003c\/strong\u003e—cool, austere, and precise. It protects where boundaries are breached by infection, without overwhelming the system.\u003c\/p\u003e\n\u003cp\u003eAs both healer and sentinel, \u003cem\u003eUsnea\u003c\/em\u003e teaches restraint. Its power lies not in quantity, but in \u003cstrong\u003eclarity, specificity, and respect for ecological limits\u003c\/strong\u003e. Used wisely, it stands among the most valuable antimicrobial allies in the natural pharmacopeia.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Sugar Creek Trading Company","offers":[{"title":"whole \/ 25g","offer_id":50934983917866,"sku":null,"price":9.36,"currency_code":"USD","in_stock":false},{"title":"whole \/ 50g","offer_id":50934983950634,"sku":null,"price":15.91,"currency_code":"USD","in_stock":false},{"title":"whole \/ 100g","offer_id":50934983983402,"sku":null,"price":29.91,"currency_code":"USD","in_stock":false},{"title":"whole \/ 250g","offer_id":50934984016170,"sku":null,"price":63.56,"currency_code":"USD","in_stock":false},{"title":"whole \/ 500g","offer_id":50934984048938,"sku":null,"price":118.22,"currency_code":"USD","in_stock":true},{"title":"whole \/ 1kg","offer_id":50934984081706,"sku":null,"price":222.24,"currency_code":"USD","in_stock":true},{"title":"whole \/ 2kg","offer_id":50934984114474,"sku":null,"price":422.27,"currency_code":"USD","in_stock":true},{"title":"whole \/ 5kg","offer_id":50934984147242,"sku":null,"price":1002.88,"currency_code":"USD","in_stock":true},{"title":"whole \/ 10kg","offer_id":50934984180010,"sku":null,"price":1905.47,"currency_code":"USD","in_stock":true},{"title":"whole \/ 25kg","offer_id":50934984212778,"sku":null,"price":4525.5,"currency_code":"USD","in_stock":true},{"title":"whole \/ 50kg","offer_id":50934984245546,"sku":null,"price":8598.44,"currency_code":"USD","in_stock":true},{"title":"whole \/ 100kg","offer_id":50934984278314,"sku":null,"price":16337.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/3547\/6010\/files\/usnea-lichen.png?v=1772272289","url":"https:\/\/sugarcreektradingcompany.com\/it\/products\/usnea-lichen","provider":"Sugar Creek Trading Company","version":"1.0","type":"link"}