Making yarrow salve is a two-step process: first you infuse dried yarrow into a carrier oil over days or hours, then you melt beeswax into that infused oil to create a solid, spreadable balm. The whole project requires just three core ingredients and basic kitchen equipment. Here’s how to do it right, from choosing your materials to pouring the final product.
Why Yarrow Works in a Salve
Yarrow has been used on cuts, scrapes, and minor wounds for centuries, and modern research backs up the tradition. The plant’s essential oil contains compounds with anti-inflammatory and antiseptic properties, including chamazulene (the same blue-tinted molecule found in chamomile). Its flavonoids contribute antioxidant activity that supports skin repair, and the plant has long been valued as an astringent that helps slow minor bleeding.
Lab studies have shown yarrow extracts can inhibit Staphylococcus aureus, one of the most common bacteria found in wound infections, with some extracts reducing bacterial biofilm formation by 72% or more. That combination of anti-inflammatory, antimicrobial, and astringent properties is what makes yarrow particularly well suited for a topical healing salve rather than just a moisturizer.
What You’ll Need
- Dried yarrow: Leaves and flowers both work. Dried herb is preferred over fresh because water content in fresh plant material can introduce mold into your oil. You can dry your own harvest or buy it from an herb supplier.
- Carrier oil: Olive oil is the traditional choice and works well. Jojoba oil and sweet almond oil are lighter alternatives. Avoid oils that go rancid quickly, like flaxseed.
- Beeswax: Pastilles (small pellets) melt faster and measure more easily than blocks. You’ll use a 1:4 ratio of beeswax to infused oil by volume for a medium-consistency salve.
- Optional additions: A few drops of vitamin E oil can extend shelf life. Lavender or tea tree essential oil can complement yarrow’s properties if you want a more complex salve.
You’ll also need a clean glass jar for infusing, a double boiler or makeshift version (a heat-safe bowl over a pot of water), a fine mesh strainer or cheesecloth, and small tins or jars for the finished salve.
Step 1: Infuse the Oil
This is the most important step. You’re extracting yarrow’s active compounds into oil, which becomes the medicinal base of your salve. There are two main approaches.
Cold Infusion (2 to 6 Weeks)
Fill a clean glass jar halfway to two-thirds full with dried yarrow leaves and flowers. Pour your carrier oil over the herb, filling to the neck of the jar and leaving about a quarter inch of headspace. Cap the jar tightly, give it a good shake, and place it in a sunny windowsill. Shake it every day or two. The sun’s warmth gently draws compounds into the oil over two to six weeks. Four weeks is a good standard target.
This method produces the most balanced extraction and preserves heat-sensitive compounds. It’s the best choice if you’re not in a rush.
Warm Infusion (2 to 12 Hours)
If you need your salve sooner, use gentle heat. Fill a canning jar halfway with dried yarrow and cover with oil to the neck. Place the jar in a slow cooker filled partway with water (a water bath) and set it to the lowest setting. Let it infuse for 4 to 12 hours. Alternatively, use a double boiler on the stovetop, keeping the oil temperature below 110°F (43°C) to prevent the oil from degrading. Stir occasionally.
Higher temperatures speed extraction but can damage delicate oils. If you’re using olive oil, it handles moderate heat well. If you’re using a more delicate oil like sweet almond, stick closer to that 110°F ceiling or opt for the cold method.
When your infusion time is up, strain the oil through cheesecloth or a fine mesh strainer into a clean bowl or measuring cup, squeezing out as much oil as possible. Discard the spent herb. What you have now is yarrow-infused oil, ready for the next step.
Step 2: Make the Salve
The standard ratio for a medium-consistency salve is 1 part beeswax to 4 parts infused oil by volume. For a practical batch, that’s roughly 1 ounce of beeswax to 4 ounces (half a cup) of infused oil. Want a firmer salve for a lip-balm style stick? Use more beeswax. Prefer something softer and more spreadable? Use less.
Set up a double boiler: place a heat-safe glass or metal bowl over a pot of simmering water. Add your beeswax and let it melt completely, stirring occasionally. Once the wax is fully liquid, pour in your strained yarrow oil and stir until everything is combined and uniform. This takes just a minute or two.
If you’re adding vitamin E oil (a few drops per batch) or essential oils (5 to 10 drops total), stir them in now, right after you remove the mixture from heat. Essential oils evaporate quickly at high temperatures, so adding them at the end preserves their potency.
Pour the warm liquid immediately into your tins or small jars. It sets up fast, so don’t hesitate. Leave the containers undisturbed for 30 to 60 minutes while the salve cools and solidifies. You’ll know it’s ready when it’s opaque and firm to the touch.
Testing Your Consistency
Before you pour the full batch, dip a spoon into the melted mixture and place it in the freezer for a minute. The chilled sample shows you exactly what the finished texture will be. If it’s too hard, return the pot to low heat and stir in a small splash of additional infused oil. If it’s too soft, melt in a pinch more beeswax. This quick test saves you from pouring an entire batch you’re unhappy with.
Storage and Shelf Life
Homemade salves made with oil and beeswax (no water) are naturally resistant to microbial growth because bacteria need moisture to thrive. A properly made yarrow salve will last at least a year, and many last two years or longer without going bad. Adding a few drops of vitamin E oil helps prevent the carrier oil from going rancid, which is the main way salves degrade over time.
Store your salve in a cool, dark place. Avoid leaving it in direct sunlight or in a hot car, which can melt the salve and accelerate oil breakdown. If your salve ever smells off or looks discolored, it’s time to make a fresh batch. Label your containers with the date so you can track how old they are.
How to Use Yarrow Salve
Apply a thin layer to minor cuts, scrapes, bug bites, small burns, or dry, irritated skin. Yarrow’s astringent properties make it particularly useful for small wounds that are still oozing slightly. Reapply two to three times a day or as needed. The beeswax creates a light protective barrier over the skin while the infused oil delivers yarrow’s active compounds.
Allergy and Safety Considerations
Yarrow belongs to the Asteraceae family, which also includes ragweed, chamomile, and daisies. If you’re allergic to any of these plants, there’s a real chance of cross-reactivity. More than a third of people with Asteraceae allergies also react to fragrances and plant resins, so sensitivity in this family tends to run broad.
Before using yarrow salve on a wound or large area of skin, do a patch test. Apply a small amount to the inside of your wrist and wait 24 hours. Reactions can include redness, itching, and dry rash at the application site. In some people, Asteraceae sensitivity also involves photosensitivity, meaning the affected skin reacts strongly to even brief sun exposure. If you notice any irritation during your patch test, yarrow salve isn’t for you.
Pregnant women have traditionally been advised to avoid yarrow because it may stimulate uterine contractions. While most of that concern centers on internal use (teas and tinctures), many herbalists recommend erring on the side of caution and skipping topical yarrow during pregnancy as well.