The blue tansy flower (Tanacetum annuum), a small plant native to the Mediterranean, has become a prized ingredient in skincare and aromatherapy. Once little-known, it’s now featured in many beauty products — from acne treatments to anti-aging serums — and praised for its soothing and healing effects.

Aromatherapists value blue tansy for its calming aroma, while skincare enthusiasts love its gentle, restorative qualities. Although scientific research on this oil is limited, some evidence supports its traditional uses.

Here’s what you should know about blue tansy essential oil, its benefits, and how to use it safely.

What Is Blue Tansy?

Despite its name, the blue tansy plant actually produces yellow flowers. Native to the Mediterranean region, it’s now mainly cultivated in Morocco.

The plant nearly disappeared due to overharvesting when its popularity grew, but sustainable farming has since helped restore it. Even so, blue tansy remains one of the more expensive essential oils — a 2-ounce bottle can cost over $100.

The plant’s yellow blossoms and soft, white-fuzzed leaves produce a sweet, herbal-scented oil that’s naturally rich in camphor.

How Blue Tansy Oil Is Made

Blue tansy essential oil is produced through steam distillation of the plant’s flowers and stems. During distillation, a compound called chamazulene forms, giving the oil its distinctive deep blue hue once heated.

The chamazulene concentration changes as the plant matures throughout the growing season, typically from May to November.

Benefits of Blue Tansy Essential Oil

While formal research on blue tansy oil itself is limited, its chemical components show a range of therapeutic and skin-soothing properties.

1. Calming and Soothing Effects

Though more studies are needed, blue tansy oil has been used by some radiologists in diluted form to help soothe skin irritation and minor burns that can result from radiation therapy. This use reflects its reputation for calming the skin and reducing discomfort.

2. Anti-Inflammatory Benefits

Blue tansy’s powerful anti-inflammatory properties come from several key compounds:

• Sabinene, one of its major constituents, has demonstrated anti-inflammatory activity in research.

• Camphor, another primary compound, is known to reduce inflammation in the body.

• Chamazulene, which gives the oil its signature blue color, has also been identified by the American Chemical Society as an anti-inflammatory agent.

3. Skin-Healing Potential

Thanks to its camphor content, blue tansy may help repair and rejuvenate damaged skin.

In one animal study, camphor improved the healing of skin exposed to UV light, suggesting that it may help with wound recovery and even reduce fine lines and wrinkles.

4. Antihistamine-Like Properties

In traditional Chinese medicine, blue tansy has been used as a natural antihistamine to ease nasal congestion and allergy symptoms.

Aromatherapists often recommend adding a few drops to hot water and inhaling the steam to help clear the sinuses and support easier breathing.

How to Use Blue Tansy Essential Oil

There are several ways to safely enjoy the benefits of blue tansy:

In Skincare or Carrier Oils

Always dilute blue tansy essential oil before applying it to your skin.

• Add 1–2 drops to your daily moisturizer, cleanser, or serum.

• Mix a few drops into a carrier oil such as coconut, jojoba, or almond oil before using it on the skin.

In a Diffuser

Blue tansy’s herbal, slightly sweet aroma can help create a relaxing environment. Add a few drops to your essential oil diffuser to enjoy its soothing fragrance.

⚠️ Caution: Essential oils can sometimes trigger asthma or allergy symptoms. Avoid diffusing them in shared or enclosed spaces if you or others are sensitive.

As a Spritz or Mist

You can make a simple soothing spray by combining:

• 4 mL of blue tansy essential oil

• 4 ounces of water

Mix the two in a glass spray bottle and shake before use.

If using during radiation therapy, avoid aluminum bottles, as aluminum can interfere with treatment.

Safety and Side Effects

Like all essential oils, blue tansy should never be ingested and must be diluted before applying to the skin.

When purchasing, make sure the product label reads Tanacetum annuum — the true blue tansy. Avoid Tanacetum vulgare (common tansy), which contains thujone, a toxic compound that should not be used for aromatherapy or topical applications.

Some practitioners recommend blue tansy for asthma symptoms, but it’s important to be cautious: the American Academy of Asthma, Allergy & Immunology warns that essential oils can sometimes trigger asthma attacks or cause bronchospasms.

If you’re pregnant or breastfeeding, consult your doctor before using essential oils, as their effects on infants have not been fully studied.

How to Choose a Quality Blue Tansy Oil

Because blue tansy oil is expensive, it’s essential to buy from a trusted source. Here’s what to look for:

• The Latin name “Tanacetum annuum” on the label.

• No added carrier or vegetable oils (unless clearly stated as a blend).

• Packaging in a dark glass bottle to protect the oil from light and degradation.

Where to Buy Blue Tansy Essential Oil

You can find high-quality blue tansy oil at natural health shops and reputable online retailers, including:

• Amazon

• Eden’s Garden

• doTERRA

The Bottom Line

Blue tansy essential oil has gained attention for its potential anti-inflammatory, antihistamine, and skin-soothing effects. While more research is needed, its key compounds — including chamazulene, camphor, and sabinene — show promising benefits for the skin and overall relaxation.

Always choose blue tansy (Tanacetum annuum) and not common tansy (Tanacetum vulgare), which can be toxic.

If you have asthma, allergies, or other medical conditions, talk to your healthcare provider before using blue tansy or any other essential oil to ensure it’s safe for you.