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Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
Here is the short answer: for bath bombs, you want a set with many small bottles rather than one big jug, because you will be blending two or three scents together and 5 mL is plenty for a single batch. The Lagunamoon 20-oil set takes the top spot — it holds 4.6 stars across 46,000+ ratings, and its 10 mL bottles give you the most bath-bomb batches per scent of any multi-oil kit here. Everything below is ranked for one job: putting real fragrance into homemade fizzers without wasting oil on batches that smell like nothing.
I’m Mohammad Maruf — the founder and writer behind Gardening Beyond. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Bath bombs are a rough home for fragrance, because heat, water and baking soda all work against a scent. The guide below covers bottle size, dropper design and how each oil behaves in a fizzing batch, so your essential oils for bath bombs actually leave a smell behind.
Our Picks at a Glance
How To Choose The Best Essential Oils For Bath Bombs
Bath bombs fail on scent far more often than they fail on fizz. The reason is simple: you are dropping a scented solid into hot water, and heat plus moisture drives aromatics straight out of the air and down the drain. Picking the right oil is mostly about how much control you get over the drop count, and how many different scents you can test without committing to a full bottle of each.
Bottle size beats bottle count
A 5 mL bottle holds roughly 100 drops, enough to scent several small batches of bath bombs or one large tray. That is why a 20-piece set of 5 mL bottles usually serves a bath-bomb maker better than a single large bottle — you get more scents to blend with, and you are not locked into one aroma for months. Go bigger only if you have settled on one signature blend and make it constantly.
Droppers decide your dosage
Bath-bomb recipes are counted in drops, not spoonfuls. An open bottle neck pours far too fast and dumps oil into your dry mix, which softens the mixture and stops it setting. A bottle with its own dropper insert — or a separate glass dropper — lets you count as you go. Sets where every bottle carries its own dropper also stop you from dragging lavender residue into your peppermint batch.
Pure oil versus fragrance oil
Both work in a bath bomb, and they behave differently. A pure single-ingredient essential oil tends to give a cleaner, more layered smell that fades gradually. A fragrance oil is blended for a stronger, sweeter throw that often holds longer once it hits water. Neither is wrong — but if you plan to blend your own combinations, single-ingredient oils give you predictable results.
How much to use per batch
A common starting point is a small number of drops per bomb rather than a heavy pour, because the baking soda and citric acid mix will only absorb so much before the texture turns damp. Start light, let the shaped bomb dry, then test one in water and adjust the next batch. Keeping a written drop count per recipe is the fastest way to make a blend repeatable.
Quick Comparison
| Model | Best For | Bottle Count | Bottle Size | Dropper Style | Amazon |
|---|---|---|---|---|---|
| Lagunamoon 20-Oil Set★ Best Overall | First-time blenders who want the widest scent range | 20 | 10 mL | Built-in inserts | Amazon |
| NaturoBliss EucalyptusSingle-Scent Refill | Single-scent restocking for a eucalyptus recipe | 1 | 4 Fl Oz | Free glass dropper | Amazon |
| MAYJAM Tea Tree 20-Oil SetBest for Crafters | Candle and soap crafters moving into bath bombs | 20 | 5 mL | Two included | Amazon |
| Jiangxi Yumei 20-Oil Set | Mixed floral and fruity blends for creative batches | 20 | 5 mL | One per bottle | Amazon |
| SACATR 24-Oil Set | Keeping finished bombs fresh on the shelf | 24 | 5 mL | Built-in inserts | Amazon |
| Cliganic Organic Top 8 | Buyers who want the label checked by a third party | 8 | 10 mL | Built-in inserts | Amazon |
| SACATR 40-Oil Set | Testing dozens of blends before committing to a recipe | 40 | 10 mL | Dual-seal caps | Amazon |
| Aeshory 80-Oil Set | Crafters who want a different scent for every batch | 80 | 5 mL | Two included | Amazon |
In‑Depth Reviews
1. Lagunamoon Essential Oils Set, Top 20 Gift Set (10mL)
Our pick — over 4.5★ from 46,500+ verified ratings; the strongest balance of quality and price.
Twenty 10 mL bottles is the biggest pour-per-scent count on this list.
If you are new to making fizzers, this is where most people should start. The set gives you 10 mL per bottle — double the 5 mL you get from the MAYJAM and SACATR 24-piece kits — so you can scent several batches from a single bottle before you decide whether you even like that aroma. It is also the only set here with lavender from France, eucalyptus from China, orange from Brazil and peppermint and lemongrass from India listed separately, which matters if you like to know where a scent was grown.
The drop control is the part that decides a bath bomb. Lagunamoon uses built-in dropper inserts rather than separate pipettes, so you tilt the bottle and count rather than pouring from an open neck. Owners who blend regularly put the practical dose at seven to ten drops per bath bomb, and report a bottle still more than half full after six weeks of steady use. For bath bombs specifically, that kind of mileage means the set carries you through a lot of experimentation.
Two things to know before you buy. The dropper inserts do not all flow at the same rate — heavier oils move slower than thin ones, and a bottle that is nearly empty can need patience. Second, the outer box is scented even when the bottles are sealed, so store it upright in a drawer rather than on a warm shelf. Neither issue affects what lands in your mixing bowl.
What earns it the top spot
- 10 mL per bottle across 20 scents — the most generous fill of any multi-oil set here
- Built-in dropper inserts let you count drops instead of pouring, which is exactly how bath-bomb recipes are written
- The maker describes the FrostProtect bottle as keeping oil stable for 24+ months, so a bottle lasts through occasional bath-bomb batches.
- Steam-distilled and cold-pressed with no hexane or other solvents used in the process
Where it asks patience
- Insert flow varies bottle to bottle, and near-empty bottles can drip slowly
- A few buyers found some scents lighter than expected, so the strongest aroma is not guaranteed on every bottle
Buy it if: you want one box that covers lavender, peppermint, tea tree and eucalyptus plus sixteen more, with enough oil in each to test three or four bath-bomb recipes before restocking.
Look at a single-note bottle if: you already know your one signature scent and would rather refill that than store twenty bottles.
2. NaturoBliss Eucalyptus Essential Oil with Glass Dropper (4 Fl Oz)
One big bottle of eucalyptus for anyone whose bath-bomb recipe never changes.
Eucalyptus is the scent that holds up best in a hot bath, which is why a single-note bottle makes sense for people who have stopped experimenting. This one arrives as 4 Fl Oz in a coated glass bottle, and the box also contains a free glass dropper — so you pour nothing by guesswork. The seller states the oil is undiluted with no fillers or additives, and that each batch is tested by an independent lab. Packaged in the USA.
For a bath bomb, eucalyptus blends well with the other scents you are likely already using. The maker lists basil, cedarwood, citronella, frankincense, ginger, lavender, lemon, spearmint, tea tree, wintergreen, rosemary and pine as pairings, so a couple of drops of this plus your lavender bottle gives you a spa-style blend without buying anything new. It is also the bottle people reach for outside the tub — it works in humidifiers, diffusers, homemade blends, laundry and around the home, office or garden.
The catch with any large single bottle is that you will be counting drops out of one aroma for a long time, and the packaging is glass with a cap insert that some buyers found awkward to seat properly. Treat it as a refill bottle for one fixed recipe, not a sampler. If you are still deciding which scent you love, a multi-oil set serves you far better at this stage.
Where a 4 Fl Oz bottle wins: if you already know your recipe, refilling one large glass bottle costs less per batch than restocking a twenty-bottle set. Use it for eucalyptus-heavy blends alongside lavender, lemon, spearmint or tea tree, and keep it in its UV-coated glass between uses.
The honest limit: this is one scent, so it cannot be your whole bath-bomb shelf. The flimsy outer packaging around a glass bottle and an awkward cap insert are the recurring gripes, and store-bought glass means it wants a shelf edge, not a crammed basket.
Reach for this if: eucalyptus is the backbone of your blend and you would rather buy one big coated glass bottle than twenty small ones.
Choose a set instead if: you are still sampling scents — a single 4 Fl Oz bottle gives you no range at all.
3. MAYJAM Tea Tree 20 Pcs Pure Essential Oil Gift Set (5ML)
A starter tray built for people already melting wax and pouring soap.
Twenty 5 mL bottles covering lavender, jasmine, eucalyptus, vanilla, frankincense, peppermint, sandalwood, sweet orange, ylang ylang, rose, bergamot, tea tree, cinnamon, geranium, patchouli, citronella, lemongrass, rosemary, clary sage and chamomile. For bath-bomb making this set shines because the maker lists soap, candles and bath bombs directly as intended uses, and because cinnamon, geranium and patchouli are the warm notes that survive a fizzy reaction better than delicate florals. Three drops is enough to scent a room, so a single bomb needs very little.
What wins people over is the scent accuracy — buyers report the individual aromas read true to their names, with rose and peppermint singled out as favorites, and a custom blend guide is included so you are not starting from a blank page on your first recipe. The box itself is a neat, sturdy, gift-ready affair with amber UV-protective bottles and molded dividers that keep glass off glass in transit.
Be straight about the two real trade-offs. The bottles are genuinely small — that is the most-discussed point — and a 5 mL bottle covers one good-sized batch, not a whole season of fizzers. And the dropper inserts divide opinion: some pour freely, others need tipping, and a handful of buyers have had a bottle open too quickly and dump oil. Keep a paper towel under the bottle when you blend and the set behaves.
Why crafters keep it in the rotation
- 20 distinct scents, including the warm cinnamon, clove and patchouli notes that hold their character in a bath bomb
- Includes a custom blend guide and two droppers, so a first-time mixer has a recipe to follow
- Amber UV-protective bottles in a molded foam tray keep light off the oil and glass off glass
- You can keep the whole set for around the cost of a couple of single premium bottles
What to expect honestly
- 5 mL per bottle is a single-batch quantity for a serious bath-bomb maker
- Dropper inserts are inconsistent — some flow fast, some barely at all
The right box if: you already make candles or soap and want one set that covers both those crafts and bath fizzers without buying separate oils.
Skip if: you only ever make one blend — twenty tiny bottles will outlast your interest in most of them.
4. 20 Pcs Essential Oil Set for Soap, Candle and Bath Bombs Making (20×5 ML)
Every bottle carries its own dropper, so no scent ever contaminates the next.
This is the set designed around a cleaning problem most people do not think about until it happens: you dip one dropper into your lavender bottle, then use the same dropper in your peppermint bottle, and now everything smells faintly of lavender. Here, each of the 20 bottles has its own individual dropper, so you can blend a three-scent bath bomb without cross-contamination and without washing anything between bottles. For anyone blending, that is a genuine workflow upgrade over a shared pipette.
The scent profile runs fruity and floral rather than the usual lavender-peppermint tea-tree trio, which makes it the set to reach for when every bath bomb you have made lately smells the same. The maker markets it directly for diffusers, candle making, soap making and bath bombs.
Size is the honest limitation, and it is a real one. The bottles are small, and at 5 mL each a bottle does not go far once you are making bombs in quantity rather than one at a time. Value for money divides opinion squarely on that point — people who treat it as a sampler are pleased, people who expected large bottles are not. Treat it as a blending palette and it does the job well.
The case for individual droppers
- One dropper per bottle means no scent carryover when you blend three oils into a single batch
- 20 scents weighted toward fruity and floral notes, a different palette from the standard herbal sets
- Explicitly built for bath bombs as well as soaps, candles and diffusers
- Exquisitely packaged as a gift box, so it works as a present for a fellow crafter
Where it falls short
- 5 mL bottles are small — one bottle covers a modest batch, not a whole tray
- Scent strength is a mixed bag; some bottles read far bolder than others
Pick this one when: you blend two or three oils per bomb and want each bottle to stay exactly as it smells on day one.
Think twice if: you make bath bombs by the tray — you will burn through 5 mL bottles quickly.
5. SACATR 24 Pcs Natural Essential Oil Set (24 x 5ml)
The set built for shelf life, so last month’s bath bombs still smell like something.
Bath bombs are usually made in a batch and then handed out over weeks, which means your oil has to survive in a box on a shelf. SACATR approaches that with amber glass bottles and dual-seal caps that block light and slow oxidation, so the oil you blended in stays vivid from the first bomb to the last. If you make fizzers as gifts and want them to still smell right when someone finally uses them, that sealing design is the reason to pick this set.
There are 24 scents, spanning lavender, peppermint, rose, sandalwood, lemon, eucalyptus, bergamot, lemongrass, clary sage, tea tree, sweet orange and ylang ylang, and the maker states each drop is extracted from sustainably sourced plants with no additives, alcohol or synthetic fragrances. Every oil can be used alone or blended. It is worth knowing one home crafter who bought a set like this for garden sprays found the cinnamon oil noticeably stronger than the rest — useful to remember when you are dosing a bomb, since a heavy hand with cinnamon will dominate everything else in the recipe.
The box is the weak point, not the oil. Some buyers have received theirs with scuffs and dents on the outer packaging while the bottles arrived intact, so it is less gift-ready out of the mail than the maker’s photos suggest. The oils themselves are the part that matters for bath bombs, and they hold up.
The sealing advantage: amber glass plus dual-seal caps keeps light and oxygen off the oil, which is exactly what you want when you are scenting bath bombs that will sit for weeks before they get used. Light and air are what flatten a fragrance over time.
The smaller print: the outer box can arrive scuffed or dented even though the bottles inside are fine, so do not count on it as a present straight out of the shipping carton.
Made for: anyone who makes bath bombs in batches and gifts them, and needs the scent to survive a shelf.
Not the pick if: the box presentation is the whole point — buy it for the oil, not the packaging.
6. Cliganic Organic Essential Oils Set for Home Diffuser, Top 8
Eight oils, single-ingredient, with the paperwork to prove what is inside.
Some people will not put an oil into something that touches hot water without knowing it has been checked, and this is the set for them. Cliganic’s eight oils — peppermint, lavender, eucalyptus, tea tree, lemongrass, rosemary, frankincense and orange — are USDA organic certified, non-GMO project verified, certified vegan and cruelty-free. Each batch is tested for purity by a third-party lab, and every bottle is a single-ingredient oil with no synthetic additives.
That is the whole pitch, and for bath bombs it is a strong one. When you are blending frankincense and orange into a fizzer, single-ingredient oils behave predictably — you know exactly what you are combining. The set also ships with a booklet covering each oil and recipes for different combinations, so you have a starting point for your first blend rather than guessing at ratios.
What you give up is range. Eight oils is about a third of what the twenty-piece sets offer, and the bottles run small, so anyone making fizzers in volume will run dry faster here. The strength between bottles also varies — some arrive bolder than others. But the group that cares most about what is on the label tends to accept that trade knowingly, and this is the one set on the list where the certification is the point.
What the label buys you
- USDA organic certified, non-GMO project verified, certified vegan and cruelty-free
- Single-ingredient oils with no synthetic additives, so blends behave predictably
- Each batch tested for purity by a third-party independent lab
- Includes a booklet with information on each oil plus recipes for combinations
The trade you accept
- Only 8 oils — no cinnamon, clove or vanilla for warm blends
- Bottles are small drawn small, and strength varies between them; no bulk-user set
The pick for: buyers who want organic certification and single-ingredient purity on the label before anything goes near their bath water.
Keep looking if: you want a wide palette of twenty scents to experiment with — eight covers the classics and stops there.
7. SACATR 40 Pcs Natural Essential Oil Sets (40 x 10ML)
Forty scents at 10 mL each — the biggest testing palette on this list.
If you are the type who wants to try fifteen different bath-bomb recipes before settling on one, this is the box that lets you do it. Forty bottles, 10 mL each — the same generous fill as the Lagunamoon set, but across twice as many scents. The range covers lavender, peppermint, rose, vanilla, lemon, eucalyptus, bergamot, geranium, lemongrass, gardenia, tea tree, rosemary and more, so the fruity, floral and herbal columns are all covered in one purchase.
The construction is the selling point after the count. Each bottle is amber glass with dual-seal caps to block light and slow oxidation, and the whole set sits in a molded foam tray that keeps the bottles from knocking together. Buyers use this set for far more than bath bombs — one home crafter runs it through soaps, laundry detergent and dishwasher soap, and reports the smell lasts and reads well in every application. The dual stopper is a recurring favorite, because one side drips a couple of drops and the other opens fully for a whole dropper’s worth.
What you should know going in is that 10 mL across forty scents is more oil than one household can realistically use on bath bombs alone, so the set only pays off if you genuinely craft across soaps, candles and fizzers. The outer box is also large, and a few packs have arrived with cosmetic scuffs on it, though the bottles inside were undamaged.
The reason forty bottles makes sense: at 10 mL each you can test a full recipe, adjust the blend, and test it again without rationing — which is the actual work of settling on a bath-bomb scent you love. The dual-seal amber caps keep the ones you have not opened yet fresh while you work through the rest.
The catch: this is more oil than a bath-bomb-only household will use, so it earns its place mainly if you also make soaps, candles or laundry products. The box is bulky to store and can arrive with surface scuffs.
Worth it for: multi-craft households who will run these oils through soaps, candles and bath bombs and want forty scents at a full 10 mL pour.
Overkill if: bath bombs are your only project — twenty scents already covers every classic blend.
8. Essential Oil Set 80 Pcs, 100% Natural Essential Oils Kit (80 x 5ML)
Eighty different scents means you never repeat a bath bomb twice.
No other set here comes close on variety. Eighty bottles at 5 mL, spanning lavender, lemon, sweet orange, tea tree, bergamot, chamomile, rose, cherry blossom, cedar, cinnamon, clove, eucalyptus, frankincense, grapefruit, jasmine, lemongrass, patchouli, peppermint, rosemary and ylang ylang — so if the whole point of making bath bombs is to never make the same one twice, this is the set built for that. You can scent eighty separate batches with a distinct aroma each time.
The oils are described as undiluted and mainly steam-distilled, with tea tree from Australia, lavender from France, mint from India and orange from Brazil. The maker markets it for room sprays and closet, carpet and linen freshening as well as soap, candle and bath-bomb making, and it arrives in a black gift box with two droppers per scent line to make dosing easier. Blending is where it lands well; several buyers use it for mixing custom aromas rather than single-note baths.
Size is the one thing to go in with your eyes open about. The bottles are small — 5 mL — and that is the most-mentioned drawback, since a bottle will not carry you through a long stretch of batch making. One buyer also noted no peppermint was included in their set, so if a specific scent is your must-have, verify the list before ordering. Treat this as the ultimate sampler and it delivers exactly that.
Why eighty bottles earns its place
- 80 distinct scents at 5 mL — the widest range in this comparison by a wide margin
- Oils sourced from named origins, undiluted, mainly steam-distilled and bottled to preserve fragrance
- Works as a room spray base as well as for soaps, candles and bath bombs
- Two droppers included per scent line for easier dosing
Sizing it honestly
- 5 mL bottles are small — one bottle covers a modest batch, so bulk makers refill fast
- The scent list is not identical across every pack, so confirm your must-have aroma is included
Choose it when: your goal is variety above all — eighty scents lets you make a different bath bomb every time without repeating.
Look elsewhere if: you want fewer, larger bottles you can pour from for a season without restocking.
Understanding the Specs
Bottle Size in mL
The mL number on the bottle tells you how many batches it will scent, and 5 mL is the standard for sampler sets. That is because a bath bomb needs only a small number of drops, so 5 mL covers a modest batch comfortably. Step up to 10 mL when you have a recipe you repeat and do not want to reach for a new bottle every week.
Dropper Design
Your dropper decides how precisely you can dose a recipe. An open bottle neck pours far too fast and can dump oil into your dry mix, softening the whole batch. A built-in insert or a separate glass dropper lets you count drops as you go. A set where every bottle has its own dropper also keeps lavender out of your peppermint.
Pure Oil vs Fragrance Oil
A pure single-ingredient oil gives you a clean, layered aroma that fades gradually. A fragrance oil is blended for a stronger, sweeter throw that tends to hold longer in water. Both work in a bath bomb; single-ingredient oils are easier to blend predictably because you always know exactly what you are combining.
Amber Glass and Sealing
Light and air are what flatten a fragrance over time. Amber or UV-coated glass blocks light, and a dual-seal or tight cap slows oxidation, keeping every drop fresh from first use to last. If you make bath bombs in batches to gift later, this is the spec that decides whether they still smell right when they are finally used.
FAQ
How many drops of essential oil go into one bath bomb?
Do essential oils survive in a bath bomb once it hits the water?
Is a 5 mL bottle enough for a batch of bath bombs?
What is the difference between pure essential oil and fragrance oil in a bath bomb?
Can I use a shared dropper for different essential oils?
Which essential oils hold up best in a hot bath?
Do these oils help bath bombs dissolve or fizz better?
Why do amber or UV-coated glass bottles matter for bath bomb oils?
Can I blend two essential oils in one bath bomb?
How should I store essential oils between batches?
Final Thoughts: The Verdict
The pick that suits most people making bath bombs is the Lagunamoon 20-Oil Set, because its 20 bottles at 10 mL each give you the most pours per scent in this comparison and built-in droppers that let you count drops the way a fizzer recipe demands. If a single scent is your whole routine, the NaturoBliss Eucalyptus refills one fixed recipe from a 4 Fl Oz coated glass bottle with a free glass dropper. And for the widest possible testing palette, the 80-piece kit gives you a different aroma for every batch you make.
The Lagunamoon set holds this spot on 46,000+ ratings — the most proven box here — and its tenth-of-a-point gap to the Cliganic set is the cost of covering twenty scents instead of eight.
Whatever you choose, buy the oil before you buy the molds. A bath bomb with the wrong scent gets used once; a bath bomb with a blend you actually love gets made again next weekend.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of September 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
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