3 TOOLS · 7 GUIDES

Bath bomb recipes and ratios

Citric acid to bicarbonate, what a mould actually takes, additives that earn their place, and shower steamers — with a full recipe for each.

Recipe builder

Ratio, additives, butters, scent and cost per bomb.

MOST USED

Shower steamer recipes

High essential oil load, and no oils at all.

Recipe scaler

Someone else's recipe, restated for your mould.

Works for every craft

All calculators →

Batch size calculator

Any formula, any batch

Craft pricing calculator

Cost, wholesale, retail, fees

Fragrance calculator

Craft first, then the load

QUIZ · 5 QUESTIONS

What bath bomb mood are you?

Everybody makes the same first bath bomb, and it is nobody in particular’s favourite. Five questions about what you actually want out of the ten minutes, and a direction to build from. No sign-up, nothing stored.

Take the quiz →

Read before your next batch

All guides →

guide photo 3:2

BATH BOMBS

How to make bath bombs

guide photo 3:2

SHOWER STEAMERS

How to make shower steamers

guide photo 3:2

BUYING GUIDE

Where to buy citric acid

guide photo 3:2

BATH BOMBS

Bath bombs without citric acid

guide photo 3:2

BATH BOMBS

Epsom salt and additives in bath bombs

guide photo 3:2

TROUBLESHOOTING

Why are my bath bombs crumbling?

Also making soap? Start at the soap hub

guide photo 3:2

HUB

Also pouring candles? Start at the candle hub

PRINTABLE · 16 PAGES

The Bath Bomb Recipe Card

Ratio, mould weight, scent and colour per batch, with a fizz-test column and a cost tally.

Buy & download