Books & Guides
Everything here started in a Brisbane kitchen, tested on real hair, documented honestly, and written for people who want to understand what they’re making and why. The books and guides on this page are the concentrated version of what’s spread across the site: the formulas, the method, the things that went wrong and what fixed them, in one place and ready to use.
Available Now
Hard Water Hair
Available on Amazon — Kindle and Paperback
The book that started with a problem and ended with six tested formulas. Hard Water Hair is a practical home formulation guide to syndet shampoo and conditioner bars: lye-free, melt-and-mix bars that work with your hair’s natural chemistry rather than against it. Every formula covers oily, normal and dry hair on the shampoo side, and lightweight, moderate and deeply nourishing on the conditioner side. What went wrong during testing is documented alongside what fixed it, because that’s the part most guides leave out.
If you’ve struggled with shampoo bars before e.g. waxy residue, poor lather, hair that feels worse after washing, this is the book that explains why and shows you how to fix it.
DIY Syndet Shampoo Bar Guide — Oily Hair
Available on Etsy — Digital Download
Three tested syndet shampoo bar recipes for oily hair, with full formulas, percentages, and method. No lye, no guesswork, no untested formulas. Everything you need to make a shampoo bar that actually cleans oily hair,and keeps it cleaner for longer.
DIY Syndet Conditioner Bar Guide — Moderate Formula
Available on Etsy — Digital Download
Three tested moderate conditioner bar recipes: the most broadly applicable formula in the Batch & Bubble range, suited to normal to slightly dry ends. Full formulas, percentages, and method. If you’ve made the shampoo bar and want to complete the routine, this is the natural next step.
Oily Hair Complete Routine Bundle — Syndet Shampoo + Moderate Conditioner (6 Recipes)
Available on Etsy — Digital Download
Both guides together at a reduced price. Six tested recipes covering the complete oily hair routine: three shampoo bar formulas and three moderate conditioner bar formulas, with full formulas, percentages, and method for each. The shampoo handles the scalp. The conditioner handles the ends. Together, they’re a complete DIY hair routine that costs a fraction of what you’d spend on commercial alternatives.
Coming Soon
The kitchen is busy. Here’s what’s being tested and written at the moment:
More hair type bundles — dry hair and normal hair shampoo and conditioner combinations are in formulation, following the same tested-formula standard as everything already published.
Lye-Free Personal Care Bars — the second book in the Batch & Bubble series, covering syndet body bars across everyday, sensitive, dry skin, and exfoliating formulas. Same honest approach as Hard Water Hair, applied to the bathroom shelf beyond the shower.
Individual recipe guides — standalone guides for specific hair types and bar categories, for readers who want one formula set rather than a complete routine bundle.
If you want to know when new guides and books are available, the email list is the fastest way to find out, plus a free troubleshooting guide when you sign up.