Peer-Reviewed
No vague wellness claims. Every ingredient, every effect, traced back to published research.
01
Phytoncides are antimicrobial volatile organic compounds (VOCs) that trees and plants release into the air — part of their own defense system against bacteria, fungi, and insects. When humans breathe forest air, we absorb these same compounds through our lungs and skin.
The science of intentionally breathing this air is called Shinrin-yoku — Japanese for "forest bathing." First proposed by Japan's Ministry of Agriculture, Forestry and Fisheries in 1982, it has since become a formally studied medical practice, with dedicated research centers and government-designated "Forest Therapy Bases" across Japan, including Akasawa in Nagano Prefecture.
The most cited body of research comes from Dr. Qing Li at Nippon Medical School, whose studies found that a two-to-three-day forest visit increased human Natural Killer (NK) cell activity — a key measure of immune function — by over 50%, with elevated activity persisting for up to 30 days after exposure. Subsequent studies isolated phytoncides as the causal mechanism: hotel rooms diffused with hinoki essential oil produced similar NK cell increases without any forest exposure at all.
02
ORAC (Oxygen Radical Absorbance Capacity) measures how effectively a substance neutralizes free radicals in a laboratory assay. Dragon's blood sits in a category of its own on this measure — though ORAC is a benchtop test, not a measure of what happens in the body.
An honest note on ORAC: the USDA removed its ORAC Database for Selected Foods in 2012, on the grounds that in-vitro antioxidant values have not been shown to predict effects in the human body, and that the figures were being widely misused in marketing. We publish these values because they are real laboratory measurements and because dragon's blood is genuinely extraordinary on this assay — but we will not tell you an ORAC number means something it does not.
03
The twelve terpenes behind every SYLVANA formulation, and what the research says about each.
Pine · Rosemary
The most abundant terpene in nature. Documented to reduce cortisol and inflammatory markers, and to inhibit acetylcholinesterase — the enzyme that breaks down the memory neurotransmitter acetylcholine — supporting sharper recall and cognitive clarity.
Lavender
Among the most studied calming terpenes. Inhalation studies show measurable reductions in cortisol and heart rate, alongside activation of both opioid and dopamine receptor pathways — the biology behind lavender's long folk reputation for easing anxiety.
Orange Peel · Citrus
Upregulates tyrosine hydroxylase, the rate-limiting enzyme in dopamine and serotonin biosynthesis. Human trials have recorded measurable blood pressure reduction within 20 seconds of inhalation, alongside self-reported mood elevation.
Black Pepper
The only terpene confirmed to function as a direct CB2 cannabinoid receptor agonist — the same endocannabinoid pathway targeted by CBD — without any psychoactive effect. Documented anti-inflammatory and anxiolytic activity.
Eucalyptus
Clinical cognitive-performance studies link eucalyptol inhalation to improved accuracy and reaction time on memory and attention tasks, with concurrent reductions in perceived mental fatigue.
Spruce · Fir
The compound most responsible for the characteristic scent of coniferous forest air. Associated with parasympathetic nervous system activation — the "rest and digest" state — and measurable deep-calm response.
Bay Leaf · Hops
A sedative-leaning terpene shown to potentiate muscle relaxation and quiet nervous system activity, frequently studied alongside linalool for compounding calming effects.
Cedarwood
Documented autonomic nervous system effects including reduced blood pressure and heart rate during sleep studies, supporting its traditional use as a grounding, sedative scent.
Jasmine
A floral sesquiterpene alcohol with documented anti-anxiety activity in animal models, believed to act on GABAergic pathways alongside a distinct skin-penetration-enhancing property used in topical formulations.
Pine · Conifers
A less-common terpene with documented sedative and antioxidant properties in low concentration, contributing sustained mood and clarity effects when layered with faster-acting terpenes.
Sweet Orange
A citrus sesquiterpene studied for anti-inflammatory activity and its role in the emotionally brightening effect of citrus-forward scent profiles.
Fir · Pine
Works alongside alpha-pinene as a bronchodilator and anti-inflammatory compound, with documented antidepressant-like effects observed in inhalation studies.
04
Terpenes are volatile and heat-sensitive — that is precisely what makes them bioavailable, and precisely what makes them fragile. Combustion destroys a portion of the terpene load before it reaches the air, and heated or ultrasonic water diffusers both dilute the oil and expose it to thermal stress that shifts its chemical profile. A nebulizing diffuser uses a pressurized cold-air stream to shear pure oil into a dry micro-mist — no water, no heat, no carrier. The profile that leaves the bottle is the profile you breathe.
05
Dose matters. Most consumer diffuser oils are a small percentage of active material suspended in a neutral carrier, which caps the concentration you can actually put into a room. SYLVANA formulations are pure terpene oil — no carrier, no filler, no synthetic fixative. Combined with cold atomization, that means the airborne concentration approaches what published forest-air measurements actually record, rather than a trace amount included for scent alone.
06
Croton lechleri, commonly known as Sangre de Drago or dragon's blood, is a tree native to the Amazon rainforest whose deep red sap has been used in traditional Amazonian medicine for generations. Modern lab analysis has recorded an ORAC (Oxygen Radical Absorbance Capacity) score of 2,897,110 µmol TE/100g — the highest antioxidant capacity ever measured in a natural substance, roughly 9x higher than cloves and approximately 550x more potent than vitamin E on a comparable basis.
The sap's proanthocyanidin-rich composition has documented antimicrobial activity against a range of bacterial strains, alongside taspine and related compounds studied for their role in supporting skin tissue repair. In topical use, dragon's blood forms a light protective layer while delivering concentrated antioxidant exposure directly to skin — the basis for its role as the hero ingredient across every SYLVANA body oil.
References
Forest Bathing & Phytoncide Exposure
Terpene Pharmacology
Dragon's Blood — Croton lechleri
Citations verified against PubMed. Every DOI links to the source record. Where evidence is preliminary, in vitro, or drawn from animal models, we say so rather than rounding it up — including in cases where a stronger claim would suit us better.