The delicate blue tansy flower (Tanacetum annuum) has become a star ingredient in modern skincare and aromatherapy. This small Mediterranean plant, once relatively unknown, is now commonly found in products designed to fight acne, soothe irritation, and reduce signs of aging.

Aromatherapy experts appreciate its calming aroma, while skincare professionals highlight its restorative properties. But how much of this is science-backed? Although research is limited, the existing evidence suggests that blue tansy oil does offer several potential benefits.

What Is Blue Tansy?

Despite its name, blue tansy flowers are actually yellow. Native to the Mediterranean region, this plant is now primarily grown in Morocco.

When blue tansy became highly sought after for use in beauty products, overharvesting nearly wiped out wild populations. Thankfully, cultivation efforts have since restored availability — though the oil remains one of the more expensive essential oils. A small 2-ounce bottle can easily cost over $100.

The plant produces a sweet, herbal-scented oil high in camphor, and its narrow leaves are covered in fine, silvery fuzz.

How the Oil Is Produced

To make blue tansy essential oil, the plant’s flowers and stems are steam-distilled. During this process, a compound called chamazulene forms and gives the oil its signature deep blue color once heated.

The amount of chamazulene varies depending on when the plant is harvested — typically between May and November.

Key Benefits of Blue Tansy Essential Oil

Although there’s limited research on blue tansy oil itself, some of its individual compounds have shown impressive properties that may explain its effects.

1. Soothing and Calming Effects

While scientific studies on blue tansy’s ability to heal irritated skin are lacking, some healthcare professionals have used diluted blue tansy sprays to soothe radiation-induced skin irritation in cancer patients. This anecdotal use highlights its reputation as a calming, skin-friendly oil.

2. Anti-Inflammatory Properties

Several components of blue tansy oil are known for reducing inflammation:

• Sabinene, one of the main constituents, has demonstrated anti-inflammatory activity in research.

• Camphor, another key compound, is widely recognized for helping ease inflammation and swelling.

• The American Chemical Society notes that chamazulene, the chemical responsible for the oil’s blue color, also has anti-inflammatory benefits.

3. Skin-Healing Support

The camphor content in blue tansy oil may help repair and rejuvenate damaged skin.

In one animal study, mice exposed to UV light experienced improved skin healing after camphor treatment. Researchers concluded that camphor could play a role in wound healing and possibly anti-aging applications.

4. Antihistamine-Like Effects

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

Aromatherapists often recommend adding a few drops to hot water and inhaling the steam to ease breathing and open the airways.

How to Use Blue Tansy Essential Oil

There are several simple ways to incorporate blue tansy into your wellness or skincare routine:

1. Mix with Skincare or Carrier Oils

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

• Add 1–2 drops to your favorite face cream, lotion, or cleanser.

• Or mix a few drops with a carrier oil such as coconut, jojoba, or almond oil before applying.

2. Use in a Diffuser

Blue tansy’s herbal, slightly sweet scent makes it a popular choice for relaxation and stress relief. Add a few drops to your diffuser to enjoy its calming aroma.

⚠️ Note: People with asthma or fragrance sensitivities should be cautious — essential oils can sometimes trigger breathing difficulties or allergic reactions.

3. Create a Spritz or Mist

To make a simple anti-inflammatory spray:

• Combine 4 mL of blue tansy oil with 4 ounces of water in a glass spray bottle.

• Shake well before each use.

If you’re using the spray during radiation therapy, avoid aluminum bottles, as aluminum may interfere with treatment.

Safety and Precautions

As with most essential oils, never ingest blue tansy and always dilute it before applying to the skin.

Make sure you’re purchasing blue tansy (Tanacetum annuum) — not common tansy (Tanacetum vulgare). The latter contains thujone, a toxic substance unsuitable for aromatherapy or topical use.

While some practitioners claim blue tansy may support asthma relief, the American Academy of Asthma, Allergy & Immunology cautions that essential oils can actually trigger asthma attacks or bronchospasms in some people.

If you’re pregnant or breastfeeding, check with your healthcare provider before using essential oils. Their safety for infants and developing babies hasn’t been fully studied.

Choosing a High-Quality Blue Tansy Oil

Since blue tansy is an expensive and sometimes imitated oil, it’s important to buy from reputable sources. Look for:

• The botanical name Tanacetum annuum clearly listed on the label.

• Products that are not diluted with vegetable or carrier oils unless clearly stated.

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

Where to Buy Blue Tansy

You can find blue tansy essential oil at natural health stores and from trusted online retailers such as:

• Amazon

• Eden’s Garden

• doTERRA

The Bottom Line

Blue tansy essential oil has become popular for its potential anti-inflammatory, antihistamine, and skin-soothing properties. Although more scientific research is needed, compounds like chamazulene, sabinene, and camphor give it strong therapeutic potential.

When buying, always choose blue tansy (Tanacetum annuum) — not the toxic common tansy (Tanacetum vulgare).

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