Skincare

The Natural Skincare Formulary: What Is Inside

By Skincare editorial team · Updated

The Natural Skincare Formulary: 60 formulas, a 46-ingredient guide and the safety fundamentals

The Natural Skincare Formulary is a studio manual for making skincare at home: 60 formulas written in percentages, a guide to 46 ingredients and the safety fundamentals behind them. It is built for people who want to understand how a product is put together, not just copy a card. This page lists what is in it chapter by chapter, who it suits and what it leaves out.

The numbers

FormatPDF, 82 pages, with a companion web app
Formulas60, written in percentages that total 100
Level39 Beginner, 21 Intermediate
Types41 water-free, 9 emulsions, 6 water-based, 4 surfactant
Ingredient guide46 ingredients in 10 groups, with INCI names, use ranges and phases
WorksheetsBatch log and formula notes
Chapters9

The nine chapters

ChapterWhat it covers
Equipment & WorkspaceThe tools you need and how to set up before you start
Hygiene & SanitisingA cleaning routine, because cleanliness decides how long products last
Measuring in Grams & PercentagesHow percentages become grams, with worked examples
How a Formula Is Built: PhasesOil phase, water phase, emulsifying and cool-down
Understanding pHHow to test and adjust a water-based product
PreservativesWhen one is needed and the common ones with their use rates
Essential Oil SafetyMaximums by product type, phototoxic oils and who should avoid them
Storage, Shelf Life & LabellingShelf-life ranges, storage and what goes on a label
TroubleshootingCauses and fixes for grainy butters, thin lotions, separation and more

The 60 formulas by category

CategoryFormulas
Bath & shower11
Body butters & balms10
Creams & lotions9
Facial oils & serums6
Toners, mists & gels5
Perfume & gifts4
Masks3
Scrubs & polishes3
Hands, nails & deodorant3
Lip care2
Cleansers2
Body oils2
The 60 formulas in 12 categories with five formulas each, from body butters to beard balm

Each formula lists its level, batch size, time, yield, shelf life, phases with percentages and INCI names, the method, swaps, notes and safety. Water-based formulas also list a target pH and a preservative. Some examples are covered in detail on this site: lotion, whipped body butter, lip balm, sugar scrub, bath bomb and solid perfume.

The ingredient guide

The 46 ingredients are grouped as 12 oils, 6 clays and powders, 5 thickeners, 5 preservatives, 4 emulsifiers, 4 humectants, 3 butters, 3 essential oils, 2 actives and 2 waters and hydrosols. The same set is laid out on this site in the natural skincare ingredients guide.

A page of the 46-ingredient guide with INCI names, typical use, phase and notes

Bonuses and the web app

The Formulator's Studio web app with a batch calculator, formula builder and pH helper

Who it suits

What it is not

Ready to buy?

The Natural Skincare Formulary is the one product on this page. The sections above are the full list of what comes with it.

Frequently asked questions

How many formulas are in the book?

Sixty. 39 are rated Beginner and 21 Intermediate. 41 are water-free, 9 are emulsions, 6 are water-based products and 4 are rinse-off surfactant products.

What format is it?

An 82-page PDF, plus a web app called Formulator's Studio with a batch calculator, formula builder, essential oil dilution tool, pH helper, shelf-life and label tool, ingredient library and batch journal.

Does it include haircare formulas?

No. The haircare formulary is a separate product sold on its own. The 60 formulas here are for face, body, bath, lips and hands.

Is it medical advice?

No. The book is educational content about formulating at home. It says to patch test, to avoid broken or irritated skin and to stop using a product if irritation appears.