Can You Be Allergic to Sandalwood? Skin Reactions and Side Effects

Yes, you can be allergic to sandalwood. The usual reaction is allergic contact dermatitis: an itchy, red, sometimes blistering or flaky rash where the paste, oil or perfume touched the skin, often appearing one to two days after use. In a large German series of people already being patch-tested for dermatitis, 1.8% reacted to sandalwood oil. It is not common, but it is one of the essential oils that most often shows up as a skin allergen. Sandalwood powder on the face is well tolerated by most people; when problems occur, they come from an allergy, from undiluted oil, or from powders and “sandalwood” products that contain synthetic fragrance or other additives.

Below: how to recognise a reaction, what each form of sandalwood (chandana in Sanskrit, chandan in Hindi) involves, and how to test before using it on your face.

What the studies say

• How often allergy occurs. Geier et al. (2022, Contact Dermatitis) analysed ten years (2010 to 2019) of patch-test data from the IVDK dermatology network: 12 essential oils were tested in 10,930 patients with suspected contact allergy. Sandalwood oil gave positive reactions in 1.8% of those tested, similar to jasmine and clove, behind ylang-ylang and lemongrass. Reactions to several oils and fragrances at once were frequent, and massage therapists and beauticians had a higher risk. Note the population: these are dermatitis patients, so the rate in the general public is likely lower.
• Overall safety. A safety assessment of sandalwood oil (Santalum album) by Burdock and Carabin (2008, Food and Chemical Toxicology), a review of the available data, found low acute oral and skin toxicity in laboratory animals and occasional reports of irritation or sensitisation in humans, and judged the oil safe at the levels used in food and cosmetics while noting that the toxicity data are limited.
• Incense. Hayakawa et al. (1987, Contact Dermatitis) report a single case: a man who had burned incense and sandalwood for 15 years developed itchy, depigmented patches. Patch testing pointed to the perfume in the incense, carried by the smoke onto the skin, rather than to the wood itself.

Signs of a sandalwood allergy

• Itching, redness and small bumps or blisters where the product was applied, usually within 24 to 72 hours.
• Dry, flaky or swollen skin, particularly around the eyes and on the eyelids, which are very sensitive.
• A rash on the neck or face from perfume, or on the hands of people who handle oils at work.
• Irritation (stinging, redness within minutes) is different from allergy: it usually comes from undiluted oil or a harsh product and settles once you stop.

Swelling of the lips, tongue or throat, or difficulty breathing, is an emergency: call emergency services. For a rash that persists or recurs, a dermatologist can confirm the cause with patch testing.

Side effects by form

Form	Typical use	Main risk	Advice
Pure sandalwood powder mixed with water or rose water	Face pack, cooling paste	Allergy (uncommon); dryness if left too long	Patch test first; rinse after 10 to 15 minutes
Ready-made “sandalwood” face packs and soaps	Cosmetics	Added fragrance, preservatives or dyes, which are more common allergens	Read the ingredient list; fragrance-free if your skin reacts easily
Sandalwood essential oil	Aromatherapy, massage, perfume	Irritation if undiluted; sensitisation with repeated use	Always dilute in a carrier oil; never on broken skin
Incense sticks and cones	Rituals, fragrance	Smoke irritating eyes and airways; perfume allergy	Ventilate; avoid with asthma or near babies
Oil taken by mouth	Some traditional or supplement uses	Insufficient human data	Do not swallow essential oil without medical supervision

Note that red sandalwood (Pterocarpus santalinus, rakta chandana), often used in Indian face packs, is a different plant from white sandalwood (Santalum album). The data above concern white sandalwood oil.

Sandalwood powder on the face: how to use it safely

1. Patch test: apply a little of the paste to the inside of your forearm or behind the ear and leave it 48 hours without washing that spot. Any itch or redness: do not use it on your face.
2. Keep it short: 10 to 15 minutes, then rinse. Letting it dry and crack for a long time can dry out the skin.
3. Avoid broken or inflamed skin: open acne lesions, eczema flares, sunburn, or just after waxing or peels.
4. Keep it away from the eyes, and wash your hands after mixing.
5. If you have eczema or known fragrance allergy, ask a dermatologist before using sandalwood products regularly.

Is sandalwood good for skin? Ayurveda values it as a cooling (shita) substance for pitta-type skin, and it remains a pleasant traditional face pack. Laboratory studies on its components exist, but there is no solid clinical evidence that a home sandalwood paste treats acne, pigmentation or ageing. Our page on dull skin covers the everyday approach.

Fakes and synthetic “sandalwood”

Genuine Santalum album is scarce and expensive after decades of overharvesting. Many products labelled sandalwood contain other woods, synthetic sandalwood-type aroma chemicals or added perfume. That matters for safety as well as value: if you react to a “sandalwood” product, the culprit may be another ingredient. Our guide on how to tell real sandalwood lists the checks, and vetiver is a traditional cooling alternative if you want to use less of a threatened resource.

Pregnancy, children and other precautions

• Pregnancy and breastfeeding: a pure powder face pack is not known to be a problem; avoid essential oil taken by mouth and use diluted oil sparingly.
• Babies and young children: no essential oil on the skin or in a diffuser close to them, and no incense in their room.
• Asthma: incense smoke can trigger symptoms; prefer good ventilation or skip it.
• Supplements: sandalwood is not a herb to swallow as a self-prescribed supplement.

The general rules for every herb are in our safety and precautions guide.