How to Make a Herbal Salve
A salve is infused oil thickened with beeswax. Get the oil-to-wax ratio right and it works; get it wrong and you have a candle or a puddle.
The ratio
| Product | Beeswax per 100 ml oil | Consistency |
|---|---|---|
| Lotion bar / soft salve | 8–10 g | Spreads easily, melts on skin |
| Standard salve | 12–15 g | Firm but workable — the default |
| Lip balm / firm salve | 20–25 g | Holds shape in a tin |
| Ointment stick | 30 g | Solid at room temperature |
Weigh the wax rather than measuring by volume — grated wax varies hugely in how much fits in a spoon. A 15 g ratio is the safe starting point.
Step 1: infuse the oil
Use dried herbs, never fresh — fresh plant material carries water, which grows mould in the finished salve.
Slow method (best)
- Fill a jar two-thirds with dried herb
- Cover with olive, sunflower or sweet almond oil, plus 2 cm
- Lid loosely on, stand in a warm place or a yoghurt maker for 3–6 weeks
- Shake daily
- Strain through muslin, squeezing well
Fast method
Combine herb and oil in a bowl over simmering water for 2–3 hours. Keep the water below a simmer — high heat degrades the oils you are trying to extract.
Step 2: add the wax
- Warm the strained oil gently
- Add grated beeswax and stir until fully melted
- Test on a cold plate — put a drop on a chilled saucer and let it set. Adjust before pouring.
- Pour into tins while hot
Too soft? Add wax in 2 g increments. Too hard? Add oil in 5 ml increments.
Optional extras
- Vitamin E oil — 1% as an antioxidant, extends shelf life
- Essential oils — 1–2% maximum. Lavender, tea tree or chamomile. More is not better and can irritate skin.
- Do not add water or aloe — without a preservative, any water content grows bacteria
Which herb for what
| Herb | Traditional use |
|---|---|
| Calendula | Chapped skin, minor cuts, nappy rash |
| Comfrey leaf | Bruises, sprains (do not use on deep wounds — it can heal the surface too fast) |
| Plantain | Insect bites, stings, scratches |
| Chamomile | Irritated or sensitive skin |
| St John's wort | Traditionally for nerve pain and bruises; causes photosensitivity |
| Lavender | General skin soothing; also the scent |
Shelf life and storage
- 12–18 months in a cool, dark place
- Jojoba and vitamin E extend it; sunflower oil shortens it
- Discard if it smells rancid (like old paint) or changes colour markedly
- Tins are better than jars — you use the whole surface
Common questions
What is the ratio of beeswax to oil for salve?
About 12-15g of beeswax per 100ml of infused oil for a standard salve. Use 8-10g for a softer balm and 20-25g for a firm lip balm.
Can you make salve with fresh herbs?
No. Fresh plant material contains water, which causes mould in the finished salve. Always use thoroughly dried herbs.
How long does homemade salve last?
12-18 months in a cool, dark place. Discard if it smells rancid or changes colour significantly.
Do you need to refrigerate salve?
No, but a cool dark cupboard extends shelf life. Heat makes it soften and can cause the oils to go rancid faster.
How to dry the herbs first: How to Dry Herbs at Home · How Long Dried Herbs Last.