Linalool is one of the most widely distributed fragrance terpenes in the AromaForge archive, showing up at high levels in ho wood, ho leaf, rosewood, coriander seed, lavender, basil, and many citrus-floral oils. The evidence base is materially stronger than for many archive constituents: identity and occurrence data are robust, fragrance safety has been formally reviewed, and multiple cell and animal studies report anti-inflammatory, antinociceptive, and odor-mediated calming effects. That said, most constituent-specific efficacy literature remains preclinical, and an important real-world safety nuance is that oxidized linalool products, especially hydroperoxides, are better established contact allergens than fresh linalool itself.
Chemical identity and composition
PubChem identifies linalool as C10H18O with InChIKey CDOSHBSSFJOMGT-UHFFFAOYSA-N. It is a tertiary monoterpene alcohol that occurs as optical isomers, and archive oil records show it can range from trace allergen-level presence in citrus peel oils to dominant chemotype status in ho wood, ho leaf, rosewood, and linalool-type thyme.
Aroma and practical use
- Use the recorded floral, sweet, woody, citrus-like, citrus descriptors to explore a blend's scent character; perceived strength also depends on the other ingredients.
- Compare the recorded goal signals with the intended purpose, while keeping model assumptions separate from observed study outcomes.
- Review the flagged use concerns across every contributing oil and the selected dilution.
- Read the route, preparation and experimental context before using a study finding to choose an oil.
Reported benefits and effects
Findings retain their study context. An animal or laboratory result describes that experiment.
lps inflammation model
A 2013 study reported that linalool lowered LPS-induced TNF-alpha and IL-6 production, blocked multiple inflammatory signaling events in macrophages, and attenuated lung histopathologic changes in mice.
Measured: TNF-alpha, IL-6, inflammatory kinase signaling, and lung histopathology
This experimental finding does not establish benefit, dose or safety in people using this blend.
odor induced anxiolysis
A 2018 mouse study reported anxiolytic effects from linalool odor without motor impairment, and the effect was not seen in anosmic mice, which supports a smell-mediated behavioral response.
Measured: anxiety-like behavior and motor performance
This experimental finding does not establish benefit, dose or safety in people using this blend.
How it contributes to goal calculations
Model markers guide the formulation score. They are separate from the source findings above.
Use concerns and concentration limits
Sensitization concernFlagged
Flagged in the constituent reference; assess the source, route and finished-product concentration.
Phototoxicity concernNot flagged
Not flagged in the current model. This is not proof of absence or unrestricted safety.
Oxidation concernFlagged
Flagged in the constituent reference; assess the source, route and finished-product concentration.
Penetration enhancementNot flagged
Not flagged in the current model. This is not proof of absence or unrestricted safety.
A recorded constituent reference, not a recommended oil dilution. Product category, source applicability and all contributing oils must be checked before use.
unverified reference · No source provenance attachedA 2022 RIFM update concluded that linalool is not genotoxic and is not expected to be phototoxic or photoallergenic under current fragrance-use conditions.
The source assessment applies to its specified exposure and preparation; this entry is not an unrestricted-use clearance.
Fresh linalool itself has weaker sensitization concern than its oxidation products, but published contact-allergy literature shows that hydroperoxides formed on air exposure are clinically relevant allergens.
Apply this finding only to the studied preparation, participants, route and outcome. It does not establish the same result for a custom oil blend.
Archive safety copy should distinguish purified or fresh linalool from aged oxidized materials, because the contact-allergy signal is stronger for oxidation products than for the parent terpene.
This reference does not establish a therapeutic result or a safe use level for a custom oil blend.
Constituents it may interact with
These are research candidates recorded in the interaction matrix. They do not add a proven-amplification bonus to the score.
Linalyl acetateAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
animal · effect
No source citation attached.
Read Linalyl acetate report →LimoneneNeutral record
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
human clinical · effect
No source citation attached.
Read Limonene report →alpha-TerpineolAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
human clinical · effect
No source citation attached.
Read alpha-Terpineol report →(E)-CaryophylleneAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
in vitro · effect
No source citation attached.
Read (E)-Caryophyllene report →GeraniolAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
in vitro · effect
No source citation attached.
Read Geraniol report →CarvacrolAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
in vitro · effect
No source citation attached.
Read Carvacrol report →ThymolAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
in vitro · effect
No source citation attached.
Read Thymol report →gamma-TerpineneAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
in vitro · effect
No source citation attached.
Read gamma-Terpinene report →p-CymeneAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
in vitro · effect
No source citation attached.
Read p-Cymene report →CarvacrolAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
in vitro · whole_oil
No source citation attached.
Read Carvacrol report →1,8-cineoleAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
in vitro · effect
No source citation attached.
Read 1,8-cineole report →Linalyl acetateAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
analytical · whole_oil
No source citation attached.
Read Linalyl acetate report →Terpinen-4-olNeutral record
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
in vitro · effect
No source citation attached.
Read Terpinen-4-ol report →citronellalAmplification candidate
Candidate in the research matrix. A coefficient alone does not establish amplification at the dose, route or goal of your blend; no proven amplification is inferred from this row.
in vitro · effect
No source citation attached.
Read citronellal report →How the effects were investigated
suppressed proinflammatory signaling
A macrophage and mouse lung-injury study reported reduced TNF-alpha and IL-6 output along with inhibition of IkBa, p38, JNK, and ERK phosphorylation in LPS-stimulated models exposed to linalool.
This experimental finding does not establish benefit, dose or safety in people using this blend.
olfactory pathway dependent anxiolysis
A mouse odor-exposure study found that the anxiolytic effect disappeared in anosmic mice, supporting an olfactory-pathway-mediated rather than purely systemic mechanism for inhaled linalool odor.
This experimental finding does not establish benefit, dose or safety in people using this blend.
What this report cannot establish
- A reported constituent percentage does not establish an effective human therapeutic dose or the amount absorbed into the body.
- The presence of a constituent does not guarantee a clinical benefit, rash treatment or sleep improvement from a custom blend.
- An unflagged concern or missing use limit does not establish safety for ingestion, inhalation, skin exposure or a particular person.
- A candidate constituent interaction does not establish that two oils amplify one another at the selected proportions.
- Constituent descriptors alone do not establish a precise top, heart or base lifetime in a finished blend.
Known data gaps (6)
- Most constituent-specific efficacy literature for isolated linalool remains preclinical rather than clinical.
- The safety literature is stronger for fragrance-exposure assessment and oxidation-related allergy than for therapeutic-dose human studies.
- Biological findings can vary by route of exposure, enantiomer, and whether the signal comes from odor perception or systemic dosing.
- The numeric dermal reference lacks source provenance; a verified flag alone is insufficient.
- Some findings do not record an explicit exposure route; consult the linked study before applying them to a use.
- Interaction candidates lack an attached source citation and remain unqualified.