Oat and Zinc Bath Bombs

Makes 6 bath bombs, preparation time 1 hour plus overnight to set

There is nothing more relaxing than taking a warm bath with a fizzy bath bomb that is brimming with skin-softening ingredients. This bath bomb recipe contains sodium bicarbonate, zinc oxide, refined shea butter and citric acid, which is essential to make them fizz in the water. Citric acid is an acidic AHA with exfoliating properties that assist with cell turnover and the stimulation of new skin cell production.

You will need a spray bottle for the water, a teaspoon and at least three round stainless steel bath bomb moulds (stainless steel works best but you could use silicone or plastic moulds).


  • 40 g refined shea butter (about 1/4 cup when well packed)

  • 2 cups of sodium bicarbonate (baking soda/bicarb soda)

  • 1 cup of citric acid

  • 1 1/4 cups pf Skin Friend Oat and Zinc Bath powder

  • water in a spray bottle (or witch hazel)

  • rose petals to decorate

Place two tea towels on a large tray (enough to fit 6 bath bombs) and set aside. Using the double-boil method, place about 2 cm (1 in) of water in a small saucepan and cover with a sturdy glass bowl. Place the shea butter in the bowl and melt over a low heat until it becomes liquid. Remove from heat.

Meanwhile, mix the dry ingredients in a large bowl until lump-free. Then gradually mix in the melted shea butter, a drizzle at a time to prevent over-fizzing your mixture. The mixture should be crumbly and quite dry looking.

Now spray the water onto the dry mix, 2–3 sprays at a time, then mix. Be careful to not make the mixture too wet — it should still look pretty dry but hold together when squeezed into a ball in your hand (refer to the instructional video online if you are unsure). Spray 2 more sprays, mix, and squeeze a handful to check if it’s ready.

Hold one mould cup (one half ) and place approximately 1 tablespoon of dried rose petals into the bottom of the mould. Then add a small amount of mixture at a time into the mould and firmly press the mixture into the mould after each addition to ensure it is tightly packed. Repeat until the mould is full. Press tightly then continue to add mixture until it forms a pyramid/ mound about 3 cm (11⁄2 in) high.

Place this side down on the tea towel (to prevent tipping) and repeat the mixture-pressing process with the other side of the mould (do not add rose petals to this side). Once the second side is filled (tightly packed and mountain-shaped) bring the two sides together (over the bowl of mixture to catch spillage) and press them together, firmly turning and pressing as this will allow the excess mixture to fall back into the bowl. Continue to twist and push each side together until both moulds touch, creating a perfectly round ball.