Sandalwood is used for fragrance, skincare, religious rituals, aromatherapy, and traditional medicine. It’s one of the oldest known aromatic materials, valued for thousands of years across cultures for both its distinctive warm, creamy scent and its biological activity on skin and the nervous system. Today it appears in everything from high-end perfumes to acne treatments to meditation incense.
Skincare and Dermatology
Sandalwood oil has demonstrated real effects on skin as an anti-inflammatory, antimicrobial, and wound-healing agent. Its primary active compound promotes the growth and migration of skin cells, which accelerates the repair of surface wounds. In an eight-week pilot study of a topical blend containing salicylic acid and sandalwood oil for mild to moderate facial acne, roughly 89% of participants saw improvement compared to baseline.
Clinical trials have also explored sandalwood oil for psoriasis, eczema, common warts, and molluscum contagiosum (a viral skin infection that causes small bumps). For warts specifically, a topical blend combining salicylic acid with sandalwood’s active compound was tested in two studies on children and adolescents.
One of the more interesting findings involves skin pigmentation. Sandalwood’s key compound blocks tyrosinase, the enzyme your body needs to produce melanin. It does this by fitting into the enzyme’s active site and physically preventing the normal chemical reaction from completing. This suggests sandalwood oil could help reduce dark spots and uneven pigmentation caused by sun exposure and aging, though this application is still being studied rather than widely proven in clinical practice.
Perfume and Fragrance
Sandalwood is a cornerstone of the perfume industry, prized as a base note that anchors lighter, more volatile scents. Its woody, creamy character comes primarily from two closely related molecules called alpha-santalol and beta-santalol, which together make up 65 to 90% of the natural essential oil. Because these molecules are relatively heavy and evaporate slowly, sandalwood acts as a fixative: it extends the life of a fragrance on skin and gives perfumes their lingering warmth.
The cost and scarcity of natural sandalwood oil has driven a massive synthetic industry. Chemists have spent decades trying to replicate the scent, producing dozens of molecules with names like Javanol, Sandalore, and Sandela. Cumulative production of synthetic sandalwood odorants now reaches about 1,000 tons per year. Most are derived from a single chemical starting point (campholene aldehyde), but the results vary widely. Some smell like peach or cedar or mown grass. Only a few truly capture the creamy quality of the real thing, which is why genuine sandalwood oil still commands premium prices.
Aromatherapy and Sleep
Inhaling sandalwood-based scents activates a specific pathway: aromatic molecules bind to olfactory receptors and send signals to the brain’s limbic system, which governs emotions and memory, and the hypothalamus, which regulates hormones. This triggers the release of serotonin and endorphins. Endorphins have a sedative effect, while serotonin converts to melatonin at night, which promotes sleep.
Animal research has found that santalol, the primary compound in sandalwood, significantly improves total waking time and deep sleep in sleep-disturbed rats. In humans, aromatherapy blends containing sandalwood have shown improvements in sleep quality among elderly individuals with dementia, reducing early morning awakening and increasing overall sleep duration. The effect is thought to work by activating the parasympathetic nervous system, the body’s “rest and digest” mode.
Traditional Medicine
Sandalwood has been a staple in both Ayurvedic and traditional Chinese medicine for centuries. Practitioners have used it to treat urinary tract infections, digestive problems, and common colds. Modern research has partially validated the anti-inflammatory angle: sandalwood’s active compounds alter the behavior of cytokines and chemokines, the signaling molecules your immune system uses to coordinate inflammation. This helps explain why sandalwood paste applied to irritated or inflamed skin has been a go-to remedy in Indian medicine for generations.
Religious and Spiritual Practices
Few natural materials appear in as many religious traditions as sandalwood. In Hinduism, sandalwood paste is applied to the forehead of worshippers and used to consecrate ritual tools before ceremonies. Intricately carved sandalwood adorns shrines and homes across India, and mala prayer beads are often crafted from the wood. Buddhists consider sandalwood one of the sacred scents of the lotus and use it during meditation to maintain a connection to the physical world while the mind explores inward. The wood and its resin also appear in Muslim rituals and were used by ancient Egyptians in embalming.
In modern Pagan traditions, sandalwood is associated with healing, purification, and protection. The incense is sometimes burned alone, sometimes blended with myrrh or frankincense. In chakra-based practices, it is linked to the root chakra at the base of the spine, where practitioners connect it to feelings of security, stability, and self-identity.
Indian vs. Australian Sandalwood
Not all sandalwood is the same. The two main commercial species are Indian sandalwood (Santalum album) and Australian sandalwood (Santalum spicatum), and they differ significantly in chemical makeup. The international quality standard for sandalwood oil requires 41 to 54% alpha-santalol and 16 to 24% beta-santalol. Indian sandalwood typically meets or approaches this range, while Australian sandalwood contains different ratios of these compounds and is generally considered less potent for therapeutic use. If you’re buying sandalwood oil for skincare or aromatherapy, the species matters. Products labeled “East Indian sandalwood oil” are sourced from Santalum album and carry higher concentrations of the active compounds studied in clinical research.
Safety
Sandalwood oil is well tolerated by most people. In patch testing at 20% concentration, it caused no irritation in healthy volunteers. Allergic reactions do occur but are uncommon: diagnostic patch tests show positive reactions in roughly 0.007% to 1.5% of people tested, with the higher end seen in patients who already had facial skin conditions. If you’re using sandalwood oil topically for the first time, testing a small amount on your inner forearm and waiting 24 hours is a reasonable precaution, especially if you have sensitive skin or a history of contact allergies to fragrances.
Conservation and Supply
Indian sandalwood has been classified as vulnerable by the International Union for Conservation of Nature since 1997. Decades of illegal harvesting, habitat loss, disease, and climate change have taken a severe toll. Economically viable trees, those with trunks over 30 centimeters in diameter, are now nearly impossible to find in many parts of India. The species has been described as commercially extinct in the wild.
The Indian government has responded with policy changes that encourage private cultivation. The state of Maharashtra, for example, removed sandalwood from its list of regulated trees, allowing landowners to harvest from their own property without government permission. These reforms aim to shift production from wild harvesting to sustainable farming, though it takes 15 to 20 years for a sandalwood tree to produce commercially useful heartwood. This long growth cycle, combined with ongoing demand from the fragrance and pharmaceutical industries, keeps prices high and makes synthetic alternatives increasingly important for mass-market products.