Hardness, slip and drag

Customers describe a balm in feel words. Those words map onto specific parts of the formula, and knowing the mapping is how you fix a complaint instead of guessing.

Three different things

Hardness is whether the stick holds its shape. Wax.

Slip is whether it glides. Liquid oil, and which one.

Deposit is how much comes off onto the lip. Butter and the softer end of the oil.

A balm can be hard and still deposit well, or soft and still drag. They are not one dial and treating them as one is why formulas wander.

Testing hardness without a machine

Pour into a tube, let it set overnight, then press a thumbnail into the top. A shallow mark that holds is about right. No mark is too hard, a dent is too soft.

Do it at three temperatures: a cold room, a warm room, and after twenty minutes in a closed car or a warm pocket. That third one is the real test and the one nobody runs.

Keep a reference tube of the formula you approved, stored cool, and compare against it rather than against memory.

Drag is a formula problem

Drag, the balm that pulls on the lip instead of gliding, is usually too much wax, or too much of a hard wax, or an oil with no slip in it.

The easy fix is castor or jojoba at a few percent. The structural fix is less carnauba.

What drag is not is a sign of quality. Customers read it as the product being dried out or old, and they are not entirely wrong: a balm that has lost volatile content over time drags more.

The temperature window

Every formula has a range where it works. Below it the stick is hard and drags; above it, it slumps in the tube and the top rounds over.

Decide the window deliberately. A balm sold at outdoor summer markets and a balm sold in a ski town are different products, and pretending one formula serves both is how a season's stock comes back.

References