Creamy vanilla cake and sweet buttercream frosting topped with colorful sprinkles for women, teens and kids. Sweet! All Two Sisters Spa Bubble Bath Bombs: Are activated to maximum bubbly-ness by your tub faucet water pressure (drop them in as you fill your tub to watch the magic happen!). Can be used after you fill up the tub for a more traditional bath bomb experience. Leave your body relaxed and your skin super soft. All Bubble Bath Bombs by Two Sisters Spa are 99% natural fizzy, vegan, made in the USA. create a real bubble bath.