Sandalwood Essential Oil | A Comprehensive Guide
A note on the nature of essential oils: Essential oils are concentrated plant extracts that contain biologically active compounds. The benefits described below are drawn from peer-reviewed research as well as traditional and contemporary aromatherapy practice. Essential oils should be used safely and are not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider before use, especially if pregnant, nursing, or managing a medical condition.
Background & Origin
Sandalwood essential oil is most commonly derived from the heartwood of Santalum album L., commonly known as East Indian or Indian sandalwood. Native to the Indian subcontinent, Santalum album has been cultivated and traded for centuries for its fragrant heartwood and highly valued essential oil.
The oil is particularly rich in the sesquiterpene alcohols α-santalol and β-santalol, which contribute substantially to sandalwood's characteristic warm, creamy, woody fragrance and are also the subject of much of the modern pharmacological research surrounding the plant (Bommareddy et al., 2019; Yan et al., 2024).
Sandalwood has a particularly important place in the traditional medicine and spiritual practices of India and China. Its heartwood has been used in Ayurveda and Traditional Chinese Medicine for centuries, while sandalwood paste, powder, incense, and oil have been incorporated into religious and contemplative practices (Han et al., 2025).
Modern research has investigated sandalwood oil for antimicrobial, anti-inflammatory, antioxidant, dermatological, and neuroactive properties. Human research is still relatively limited, but several studies provide intriguing evidence for effects on physiological and emotional states.
I. Physical Benefits
Anti-Inflammatory Properties
Sandalwood oil and its principal constituents, particularly α-santalol and β-santalol, have demonstrated anti-inflammatory activity in laboratory studies.
Research using human dermal fibroblasts and keratinocytes found that sandalwood oils suppressed the production of numerous inflammatory cytokines and chemokines following inflammatory stimulation. Purified α-santalol and β-santalol also reduced production of inflammatory mediators including prostaglandin E₂ and thromboxane B₂ (Sharma et al., 2014).
These findings provide a biological basis for the traditional use of sandalwood in skin preparations, although laboratory activity should not be interpreted as proof that sandalwood oil treats inflammatory disease.
Antimicrobial Activity
Sandalwood oil has demonstrated antimicrobial activity against several microorganisms in laboratory research. Its principal sesquiterpenes, particularly the santalols, appear to contribute to some of these effects.
A recent study examining Santalum album essential oil reported antibacterial activity against Gram-positive clinical isolates and investigated its effects on inflammatory pathways, including 5-lipoxygenase and phospholipase A₂ (Cebollada et al., 2026). These findings remain in vitro and therefore do not establish that topical sandalwood oil can treat infections.Immune System Support
Research suggests that limonene possesses immunomodulatory properties that may influence inflammatory pathways and oxidative balance. Experimental studies indicate reductions in inflammatory mediators such as tumor necrosis factor-alpha (TNF-α) and various interleukins following limonene administration.
While direct clinical studies involving Sweet Orange essential oil remain limited, these constituent-based findings provide a plausible biological explanation for its traditional use during seasonal illness and recovery.
Skin Health
Sandalwood album oil has attracted particular interest in dermatological research.
A review of sandalwood album oil describes anti-inflammatory, antimicrobial, and antiproliferative activity and summarizes clinical research involving several dermatological conditions, including acne, psoriasis, eczema, common warts, and molluscum contagiosum (Moy & Levenson, 2017).
This is one of the more developed areas of modern sandalwood research, although the evidence varies by condition and by the specific pharmaceutical-grade preparation studied. Aromatherapy-grade essential oil should not be assumed to be equivalent to a standardized clinical formulation.
Antioxidant Activity
Sandalwood and its constituent compounds have demonstrated antioxidant activity in experimental research. Reviews of Santalum album identify antioxidant effects among the biological activities associated with sandalwood's sesquiterpenes and other constituents (Yan et al., 2024).
Antioxidant activity measured in laboratory assays does not necessarily translate directly into antioxidant effects in human tissues, so this remains an area of emerging research.
Potential Skin-Regenerative Applications
The anti-inflammatory and antiproliferative properties of sandalwood oil have prompted investigation into its potential dermatological applications. Research involving skin cells suggests that sandalwood constituents can influence pathways involved in inflammation and cellular proliferation (Sharma et al., 2014; Moy & Levenson, 2017).
These findings help explain the historical use of sandalwood in skin preparations but do not establish sandalwood essential oil as a general wound-healing treatment.
II. Mental Benefits
Promoting Calm & Relaxation
Sandalwood has a long history of use in contemplative and calming practices, and preliminary human research provides some support for its effects on psychological and physiological states.
A controlled human study examining East Indian sandalwood oil and α-santalol after transdermal absorption evaluated physiological, mental, and emotional responses in healthy participants (Hongratanaworakit et al., 2004).
The findings provide early evidence that sandalwood constituents may influence human psychophysiology, although this research should not be interpreted as proof of a treatment for anxiety or other mental-health conditions.
Stress & Anxiety Support
Sandalwood has also been studied as part of aromatherapy interventions in palliative care.
A randomized pilot study evaluated 1% Santalum album aromatherapy massage and sandalwood delivered through an aromastone in palliative-care patients, with anxiety among the outcomes measured (Kyle, 2006).
Because the study was a pilot investigation and involved massage in one treatment group, it provides preliminary rather than definitive evidence.
Brain Activity & Emotional Processing
One particularly interesting modern study examined the effects of inhaling Santalum album essential oil on human brain activity using electroencephalography (EEG).
Sandalwood inhalation produced changes in beta- and gamma-band activity in portions of the prefrontal cortex, including the anterior cingulate cortex, regions involved in emotional and cognitive processing (Ueda et al., 2023).
Importantly, the study demonstrated changes in brain activity, not a clinical improvement in anxiety, depression, or cognition. The findings nevertheless provide a measurable neurological basis for continued investigation of sandalwood's effects on human emotional and cognitive states.
Mental Stillness & Contemplation
Sandalwood's slow, warm, persistent aroma has made it a traditional companion for meditation and contemplative practices.
Contemporary aromatherapy commonly uses sandalwood when the desired experience is quiet attention rather than stimulation. Modern neuroscience research showing measurable changes in brain activity during sandalwood inhalation provides an interesting starting point for investigating these traditional applications, although research specifically examining meditation outcomes remains limited.
A note of scientific caution: Human research involving sandalwood is promising but still relatively small. Evidence supports measurable physiological and neurological effects, but there is not enough evidence to characterize sandalwood essential oil as a treatment for anxiety, depression, insomnia, or other mental-health disorders.
III. Emotional Benefits
Emotional Balance
Sandalwood is one of the most traditionally recognized essential oils for creating an atmosphere of calm, steadiness, and emotional balance.
Its warm, soft, woody aroma is often used when the goal is not simply relaxation, but a quieter relationship with one's own emotional experience.
Preliminary human research involving sandalwood oil and α-santalol suggests that sandalwood can influence physiological and subjective emotional responses, although more research is needed (Hongratanaworakit et al., 2004).
Inner Peace & Calm
Across Indian and East Asian traditions, sandalwood has been used to create a contemplative atmosphere.
Its fragrance is frequently associated with stillness, prayer, meditation, and inward attention. Contemporary aromatherapy continues this tradition by using sandalwood when emotional quiet and centeredness are desired.
Emotional Grounding
Sandalwood's rich, slow, woody aroma is commonly described in aromatherapy as grounding without being overly heavy.
It can be especially appealing during periods of emotional overstimulation, when the intention is to slow down, reconnect with the body, and create enough inner spaciousness to process what is being experienced.
Support During Life Transitions
Because sandalwood has traditionally accompanied rituals, prayer, meditation, and significant life events, it carries a strong association with transition and reflection.
In contemporary wellness practice, it may be incorporated into rituals surrounding grief, major life changes, spiritual practice, or periods of personal reflection. These applications are rooted primarily in cultural and contemplative tradition rather than clinical evidence.
Emotional Reconnection
The persistent nature of sandalwood's aroma lends itself to practices of returning to center.
Rather than encouraging emotional suppression, its traditional contemplative use can be understood as creating an aromatic cue for slowing down, becoming present, and allowing emotions to be experienced with greater spaciousness.
IV. Spiritual Benefits
Sandalwood has one of the longest and most deeply documented spiritual histories of any aromatic plant.
Sacred History in Indian Traditions
Sandalwood has been regarded as sacred in Hindu, Buddhist, and Jain traditions. Historical and contemporary literature documents the use of sandalwood paste, powder, wood, and fragrance in religious and ceremonial contexts (Choudhary & Chaudhary, 2021).
Sandalwood paste has traditionally been applied during devotional and ceremonial practices, while sandalwood incense and fragrance have been used to establish an atmosphere conducive to prayer and contemplation.
Meditation & Prayer
Perhaps the most enduring spiritual application of sandalwood is its use during meditation and prayer.
Its fragrance is traditionally associated with quieting the senses and turning awareness inward. In Hindu and Buddhist contexts, sandalwood incense and beads have long been incorporated into contemplative practices.
Modern research demonstrating changes in human brain activity during sandalwood inhalation offers an intriguing scientific perspective on why scent may influence contemplative states, although the spiritual effects themselves cannot be measured through conventional clinical research (Ueda et al., 2023).
Purification & Sacred Space
Sandalwood has traditionally been used to prepare sacred spaces and objects.
Its fragrance is incorporated into incense, ritual preparations, temple practices, and devotional ceremonies across South Asian and East Asian traditions. The aromatic quality of the wood has therefore become closely associated with purification, reverence, and intentional presence.
Spiritual Centering
Sandalwood's traditional contemplative role has made it a symbol of spiritual steadiness.
In modern spiritual practice, it is often used when the intention is to move away from distraction and toward inner quiet. Its aroma can serve as a sensory anchor during meditation, prayer, breathwork, or reflective journaling.
Connection to the Sacred
Sandalwood connects contemporary practitioners with a living lineage of devotional and contemplative use extending across centuries.
The significance of the plant is therefore not simply its fragrance or chemistry. Its cultural history makes sandalwood an aromatic symbol of reverence, stillness, devotion, and the inward journey.
V. Energetic Signature
Santalum album carries the energetic theme of sacred stillness, inner peace, and compassionate presence.
Its core message is:
Be still enough to hear what is true within you.
Resources & References
Emerging Evidence
Research on Santalum album essential oil has produced promising findings in several areas, particularly anti-inflammatory, antimicrobial, dermatological, and neurophysiological research.
The oil's principal constituents, α-santalol and β-santalol, have been extensively investigated. Experimental studies indicate that these compounds can influence inflammatory signaling, cytokine production, oxidative processes, and cellular pathways involved in proliferation and apoptosis (Bommareddy et al., 2019; Sharma et al., 2014).
Dermatological research is one of the more advanced areas of investigation. Sandalwood album oil has demonstrated biological activity relevant to inflammation, microbial activity, and abnormal cellular proliferation, and standardized sandalwood preparations have been investigated clinically for several skin conditions (Moy & Levenson, 2017).
Other research suggests that sandalwood can produce measurable physiological and neurological effects. Transdermal research has examined changes in psychological and physiological parameters, while EEG research has demonstrated changes in prefrontal brain activity following inhalation (Hongratanaworakit et al., 2004; Ueda et al., 2023).
However, the distinction between sandalwood essential oil, isolated α-santalol, standardized pharmaceutical-grade sandalwood oil, and traditional sandalwood preparations is important. Results obtained from one preparation cannot automatically be generalized to another.
Overall, sandalwood demonstrates promising and increasingly sophisticated scientific evidence, particularly for biological activity involving inflammation, skin, microorganisms, and neurophysiological responses. Evidence for specific emotional or mental-health outcomes remains preliminary and warrants additional controlled human research.
Evidence-Based Research
Physical Health
Moy, R. L., & Levenson, C. (2017). Sandalwood album oil as a botanical therapeutic in dermatology. Clinical, Cosmetic and Investigational Dermatology, 10, 265–273. doi: 10.2147/CCID.S131146
Sharma, M., Levenson, C., Clements, I., Steiner, M., & Hsu, S. (2014). Suppression of lipopolysaccharide-stimulated cytokine/chemokine production in skin cells by sandalwood oils and purified α-santalol and β-santalol. Phytotherapy Research, 28(6), 925–932. doi: 10.1002/ptr.5080
Yan, X., et al. (2024). Biological Properties of Sandalwood Oil and Microbial Synthesis of Its Major Sesquiterpenoids. Biomolecules, 14(8), 971. doi: 10.3390/biom14080971
Cebollada, P., Spinozzi, E., Alvarado, E., Seral, C., Petrelli, R., Maggi, F., & López, V. (2026). Antibacterial and anti-inflammatory properties of Santalum spicatum (R.Br.) A.DC. and Santalum album L. essential oils: Activity against clinical isolates, modulation of ROS production in keratinocytes, and inhibition of eicosanoid pathway enzymes. Journal of Ethnopharmacology, 373, 122262. doi: 10.1016/j.jep.2026.122262
This emerging study found in vitro antibacterial activity from S. album essential oil against Gram-positive clinical isolates and activity involving inflammatory pathways. Because the study was conducted in laboratory models, these findings should be understood as preliminary biological evidence rather than proof of clinical effectiveness.
Mental & Emotional Health
Hongratanaworakit, T., Heuberger, E., & Buchbauer, G. (2004). Evaluation of the effects of East Indian sandalwood oil and α-santalol on humans after transdermal absorption. Planta Medica, 70(1), 3–7. doi: 10.1055/s-2004-815446
Heuberger, E., Hongratanaworakit, T., & Buchbauer, G. (2006). East Indian sandalwood and α-santalol odor increase physiological and self-rated arousal in humans. Chemical Senses, 31(8), 707–712. doi: 10.1093/chemse/bjl011
Ueda, K., Horita, T., & Suzuki, T. (2023). Effects of inhaling essential oils of Citrus limonum L., Santalum album, and Cinnamomum camphora on human brain activity. Brain and Behavior, 13(2), e2889. doi: 10.1002/brb3.2889
Human research suggests that sandalwood aroma can influence physiological measures and subjective states such as attentiveness, mood, relaxation, and arousal. Findings are not uniformly equivalent to a calming effect; some studies have observed increased physiological arousal. This supports describing sandalwood as capable of influencing psycho-physiological state rather than claiming that it universally produces relaxation or reduces anxiety.
Constituent Research (α-Santalol & β-Santalol)
Bommareddy, A., Brozena, S., Steigerwalt, J., Landis, T., Hughes, S., Mabry, E., Knopp, A., VanWert, A. L., & Dwivedi, C. (2019). Medicinal properties of alpha-santalol, a naturally occurring constituent of sandalwood oil: Review. Natural Product Research, 33(4), 527–543. doi: 10.1080/14786419.2017.1399387
Matsuo, Y., & Mimaki, Y. (2012). α-Santalol derivatives from Santalum album and their cytotoxic activities. Phytochemistry, 77, 304–311. doi: 10.1016/j.phytochem.2012.02.007
Yan, X., et al. (2024). Biological Properties of Sandalwood Oil and Microbial Synthesis of Its Major Sesquiterpenoids. Biomolecules, 14(8), 971. doi: 10.3390/biom14080971
α-Santalol and β-santalol are major biologically active constituents of Santalum album oil. Research on α-santalol has investigated anti-inflammatory, cellular signaling, and cytotoxic mechanisms, including effects observed in experimental cancer models. These findings are primarily preclinical and should not be interpreted as evidence that sandalwood oil or α-santalol treats or prevents cancer in humans.
General Essential Oil Reviews
Bakkali, F., Averbeck, S., Averbeck, D., & Idaomar, M. (2008). Biological effects of essential oils – A review. Food and Chemical Toxicology, 46(2), 446–475. doi: 10.1016/j.fct.2007.09.106
Miguel, M. G. (2010). Antioxidant and anti-inflammatory activities of essential oils: A short review. Molecules, 15(12), 9252–9287. doi: 10.3390/molecules15129252
These reviews provide broader scientific context for the biological activities of essential oils, including antioxidant, anti-inflammatory, antimicrobial, and other mechanisms. They should be interpreted as general essential-oil literature rather than evidence specific to Santalum album.
Traditional & Contemporary Perspectives
Macharla, V., Eslavath, J. L., Rani, S. G., Narasimha, V., & Vijayalakshmi, A. (2024). Critical review of Swetha Chandana (Santalum album L.) in Nighantus and Caraka Samhita. Journal of Ayurveda and Integrated Medical Sciences, 9(3), 75–93. doi: 10.21760/jaims.9.3.12
Han, C., Zhang, Z., Adiham, A., Huang, F., Yan, Y., Li, D., & Gong, P. (2025). Santali Albi Lignum: From traditional efficacies to pharmacological properties and modern therapeutic applications. Journal of Ethnopharmacology, 350, 120031. doi: 10.1016/j.jep.2025.120031
Sultana, A., & Rahman, K. (2018). Santalum album Linn wood and its oil: An aromatic Unani traditional medicine with versatile pharmacological activities. CellMed, 8(3), 14.1–14.6. doi: 10.5667/tang.2018.0016
Choudhary, S., & Chaudhary, G. (2021). Sandalwood (Santalum album): Ancient tree with significant medicinal benefits. International Journal of Ayurveda and Pharma Research, 9(4), 90–99. doi: 10.47070/ijapr.v9i4.1895
Sandalwood (Santalum album), known as Chandana in Ayurvedic traditions, has a long history of use in South Asian medicine. Ayurvedic literature documents its use as a medicinal plant, while historical and contemporary reviews also describe its importance in Unani and traditional Chinese medicine. Sandalwood has additionally held significant sacred and ceremonial roles within Hindu, Buddhist, and Jain traditions, where its fragrance and wood have been incorporated into devotional, ritual, and auspicious practices.
Contemporary aromatherapy continues to use sandalwood primarily for its distinctive aroma and associations with meditation, contemplation, grounding, and sacred space. These applications represent traditional and contemporary wellness practices rather than established clinical indications.
Note: This document is intended for informational and educational purposes. Essential oils should be used as a complementary wellness practice — not as a replacement for professional medical or mental health care. Always consult a qualified healthcare provider before beginning any new health regimen, particularly if you are pregnant, nursing, taking medications, or managing a chronic health condition.