The balm is anhydrous — it contains no water. That is not a marketing flourish. Water is what microbes grow in, so a water-based cream needs a broad-spectrum preservative system to be safe. Take the water out and preservatives become unnecessary rather than merely absent.
It also means every gram in the tube is doing something. There is no filler phase, no thickener holding an emulsion together, and no percentage of the stick that is water you paid for.
The formula is built by subtraction. It excludes beeswax, lanolin, coconut, tree nuts, soy, fragrance, essential oils and botanical extracts — every one of them a documented contact allergen in this category. Seven ingredients, chosen as much for what they are not as for what they are.
The rest is bookkeeping, and it matters: cosmetic-grade inputs only, a certificate of analysis on file for every raw material, batch records from batch one, and the complete formula printed on the page. If an ingredient is in there, you can read it before you buy.