diy moisturizing bath bombs

I've been making my own epsom bath salts for years and years, but I only made my first batch of bath bombs (aka bath fizzies) last November. 

(never had the citric acid before then. amazon prime, ftw!)

that first batch was OK. they didn't hold together all that tightly, but they smelled divine (my normal pick a bunch of scents that go together and blend by nose works like a charm every time). 

I guess I followed a different recipe this time (or my winging it worked even better than it had before). I think I  used about the same amount of oil overall (but more of it was shea butter) and added epsom salt this time and the mixture held together splendidly! 


I was sort of trying to recreate my favorite lush bath bomb, big blue. (only more moisturizing, and without the blue coloring and seaweed strands - which are annoying to clean out of the tub.)

lush describes the predominant scents as lavendar and lemon, but it also has some other essential oils for sure. (I forgot to add a bit of clove, I'll try that next time.) it smells floral and sweet to me, so I added rose, ylang ylang, bergamot, vanilla, amber and sandalwood. 

(a few of those I added just because I like them, not necessarily because I could smell it in the lush version.)

another ingredient lush lists is seaweed essential oil, which I don't have (yet). I substituted bladderwrack powder. I can't really smell it in the end result, so I'll look into the extract again. 

(I actually made two batches with about the same ratio of ingredients, but the second batch had more bladderwrack powder and a few more essential oils in the mix. I don't think either batch really recreates the big blue smell, but they smell fantastic!)

I tested one in tonight's bath and yeah. nice! so moisturizing and yummy smelling!

here's the basic ratios I (mostly) followed:

1 cup baking soda 
1/2 cup epsom salt 
3/4 cup citric acid

mix well before adding oil mixture 

1/2 cup oil (I melted two heaping teaspoon scoops of shea butter and then added almond oil to fill the measurement)
essential oil blend of your choice, maybe 25-40 drops total? (I don't count, I really go by smell.)

after mixing, if needed, spray with witch hazel to help mixture stick together. mine is rose scented. yum. 

I used silicone cupcake liners as molds, but I ran out of cups and ended up just mooshing the last four together in my hands. totally fine. no worries. they're curing overnight and then tomorrow I'll put them in a jar or ziploc bag.