Fill a clean glass jar about halfway with chamomile, marshmallow root, and calendula. Cover the herbs completely with jojoba oil. Let infuse for 2-4 weeks in a cool place, shaking occasionally, or gently heat in a double boiler on low for 2-4 hours. Strain well before using.
Add the tallow and herbal infused oil to a double boiler or heat-safe bowl over simmering water.
Heat gently until fully melted and combined.
Remove from heat and allow the mixture to cool slightly for a few minutes.
Stir in the essential oils. Allow to cool, then slightly mix.
Pour into a clean jar.