Ingredient profile
BTMS usually means you are making a conditioner, leave-in, or cream, not a simple beard balm. That brings phases, heat, preservation, and compatibility decisions.
It can be excellent for comb-through and conditioned feel, but the exact grade matters. BTMS-25 and BTMS-50 should be treated as related options with different strengths, not as interchangeable labels.
For the Science Hippies
BTMS blends combine conditioning ingredient plus fatty alcohols that help give the product body. The number usually signals approximate active content, so BTMS-25 and BTMS-50 are not interchangeable gram for gram.
For beard care, BTMS belongs in conditioner, leave-in, or cream formulas. It is not a beard-oil ingredient and should not be presented as a normal wax substitute.