I tried to find a working 31-cycle layout for a LONG time. Most of my previous attempts involved trying to bond the final reagents to the OUTSIDE of the product. But I never found a way to make it work. Prebuilding got ugly fast. This layout only started coming together when I tried putting the salt of the final Face Powder in the MIDDLE of the product instead.

The first 2 pairs of reagents are used for catalysts and extra fire. Then a product gets made with every subsequent 2 pairs of reagents. The fire catalyst gets used in the penultimate product to save needing a glyph of calcification.

It's probably big and expensive - but I'm just proud I got it to work!