Santalum album

What is Santalum album?

Santalum album is the Indian sandalwood tree. It is a small evergreen tree from South Asia. Its sweet-smelling heartwood is steam-distilled to make sandalwood essential oil.

The oil and the ground wood are used mainly for scent. They go into perfume, soap, incense, skin creams and massage blends. Some people dab the diluted oil on skin or breathe it from a diffuser to feel calmer.

Here is the honest verdict. Human evidence is thin. A few small studies hint at mild effects on mood and on some skin problems, but nothing is settled.

Sandalwood has been prized for thousands of years. Long use is not proof that it works, and it is not proof that it is safe.

Real Santalum album oil is costly, so it is often faked. Many cheap "sandalwood" products hold a different tree species or a lab-made scent.

How does Santalum album work?

No one has shown how sandalwood works in the body. Almost all the claims come from lab work.

The main compound is alpha-santalol. In test tubes it slows the growth of some bacteria and fungi. Whether that happens on human skin is not established.

In cell and animal studies, santalol compounds appear to damp down signals linked to inflammation. Mouse skin studies have also looked at alpha-santalol and tumour growth. None of that shows a benefit in people.

Smell is the second proposed route. In small human studies, breathing sandalwood scent shifted how calm or alert people said they felt.

Part of that may simply be liking the smell. A scent you enjoy, in a quiet moment, can settle you on its own.

What forms does Santalum album come in?

You will meet sandalwood in a few forms.

Essential oil, sold neat in small bottles for diffusers and for mixing into carrier oil.

Pre-diluted roll-ons and massage blends, where the oil sits in jojoba, almond or coconut oil.

Creams, soaps, balms and face products that list sandalwood oil or extract.

Sandalwood paste and powder made from ground heartwood, used on skin and in worship.

Incense sticks, cones and loose chips for burning.

Wood chips or powder brewed as a weak tea in some traditional systems.

Trace amounts as a flavouring in some drinks and sweets.

Capsules of sandalwood oil were once sold for urinary complaints. They are rare now and are not recommended here.

Where it comes from:

Sandalwood is one of the oldest scents in recorded use. Temples, funerals and carvings in India used it for well over two thousand years.

Ayurvedic texts listed it as chandana. Practitioners used the paste for heat, rashes, thirst and fever, and used the scent to settle the mind.

Chinese medicine knew the wood as tan xiang. It was used for chest and stomach pain and for ritual incense.

Buddhist and Hindu practice valued the wood for prayer beads and for offerings.

In 19th-century Europe, doctors gave capsules of sandalwood oil for gonorrhoea and other urinary infections. Antibiotics replaced that use, and it is not revived here.

Heavy demand pushed wild Indian sandalwood into decline. India now controls its harvest and trade tightly, and much oil today comes from plantations.

What does Santalum album help with?

• Stress and feeling wound up: This is the most common modern use, and the evidence is weak. Tradition used the scent to steady the mind during prayer and meditation. Small human studies have tested sandalwood scent in hospital and massage settings. Some reported lower anxiety scores. The studies were tiny and often had no dummy-scent group. It may help you relax. Treat it as a pleasant ritual, not as a treatment for an anxiety disorder.
• Trouble winding down at night: There is no good trial showing sandalwood improves sleep. Tradition linked the smell to calm rather than to sleep itself. A scent you like, used at the same time each night, may help you settle. That effect is hard to separate from habit. If you cannot sleep for weeks on end, speak to a doctor rather than adding more scent.
• Dry or itchy skin: Diluted sandalwood oil in a cream may feel soothing, but the oil itself can also irritate. Sandalwood paste was a classic Indian remedy for heat rash and prickly skin. Most of the comfort likely comes from the cream or carrier oil. Sandalwood adds scent, and scent is a common cause of skin reactions. Patch testing on a small area first is sensible.
• Mild acne: Lab tests show sandalwood oil slowing bacteria linked to acne. Whether it clears spots on real skin is not established. A few small company-run studies of East Indian sandalwood oil gels reported fewer spots. They were short and lacked strong comparison groups. Proven acne treatments exist. Ask a pharmacist or doctor before swapping one out.
• Eczema and psoriasis patches: Small open studies of sandalwood oil creams have reported less redness and itch. There was no dummy cream in most of them, so the result is far from proof. In cell studies, santalol compounds appear to reduce inflammation signals. That is lab work, not a result in patients. Scented products can worsen eczema in some people. Do not stop a prescribed cream to try this.
• Focus and alertness: One small human study found sandalwood scent raised reported alertness while some body-arousal readings fell. That is an odd, single finding. It has not been repeated well enough to rely on. Any effect is likely small and short.
• Room scent and ritual use: This is the use with the strongest footing, because it makes no health claim. Sandalwood has marked worship, mourning and meditation for centuries. Burning incense does add smoke to indoor air. Keep rooms aired, especially if anyone has asthma.

What are the side effects of Santalum album?

• Itchy red rash where the oil touched skin
• Allergic contact dermatitis (a delayed skin allergy)
• Burning or stinging on broken skin
• Eye pain and watering if oil gets in the eyes
• Headache or nausea from a strong scent
• Coughing or wheezing from incense smoke
• Stomach pain, nausea and vomiting if the oil is swallowed
• Burning on passing urine or blood in urine after swallowed oil

Good to know:

Used as a diluted skin product or a room scent, sandalwood is well tolerated by most people.

Skin reactions are the usual problem. Fragrance allergy builds over time, so a product you used for years can start to itch.

The serious harms come from swallowing the essential oil. That route has caused stomach upset and irritation of the kidneys and urinary tract.

Essential oils are also dangerous to young children who drink them. Store the bottle out of reach and with the cap tight.

How much Santalum album should you take?

• Recommended daily: This page gives no personal dose, and nothing here is an instruction for you. For context, these are the amounts labels tend to carry. Skin blends: about 1 to 2 drops of oil per teaspoon of carrier oil, which is roughly a 1 to 2 percent mix. Diffusers: a few drops in water, run for a short session in an aired room. Food flavouring: trace amounts only, far below anything used as a remedy. No reputable label supports swallowing sandalwood essential oil. Swallowed oil has been linked to stomach upset and to kidney and urinary tract irritation.
• Best time of day: Timing does not matter much for most uses. People who use it to relax tend to use it in the evening. People who use it for focus use it during the day. Pick whatever fits your routine.
• With or without food: Food is not relevant here. Sandalwood is used on skin or breathed in, not eaten as a remedy. This page does not support swallowing the oil, so there is no with-food guidance to give.
• Time to effect: If scent affects your mood, you will notice it within minutes. The feeling usually fades once the smell does. Skin changes, if they come at all, take weeks. It may also do nothing. That is a real and common outcome with scented remedies.
• How long to take it: There is no tested length of use, because the trials are too few. Scent use is usually occasional or daily in small amounts. Skin products are often tried for a few weeks. If a skin product has done nothing after about four weeks, it is reasonable to stop. Stop at once if your skin reacts.