bath bomb making kit
Skip itSoft demand (-24.5% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Review moat
Great449avg incumbent reviews — the moat a new listing must climb
Avg price
Good£13.73avg listing price — sweet spot $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Good5.5%search→purchase rate — share of searches ending in a sale
Price range
Good£6.70–£24.07cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Competition
Bad75%top-5 click share — a locked-up shelf
Market size
Bad£70K£70K/yr · 93K searches
Growth
Bad-24.5%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, bath bomb making kit is a £70K/yr Amazon United Kingdom market (93K searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Skip it — 42/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
bath bomb making kit market data
- Units sold / yr
- 5K–6K
- avg 100–250/product
- Revenue / yr
- £69K–£82K
- units × avg price
- Conversion rate
- 5.5%
- Avg BSR
- #575
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 58%
- Out of stock
- 4.9%
- Avg brand age
- 39 months
- Avg seller age
- 211 days
Competition & brand share
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 falling
Sellers
29
Top-5 brand share
89%
Top 20: 100%
Top-5 click share
75%
Top 20: 100%
Open market
7%
- So Bomb DIY36%
- Canal Toys26%
- Science4you10%
- Limino9%
- Klever Kits8%
- Vezerd4%
- Open — no brand owns it (2 brands, 7%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -24.5% search growth over the last 90 days.Peak months: Oct, Nov, Dec · busiest ÷ quietest = 5.4×
Top bath bomb making kit search terms
- bath bomb making kit37K/yr
- bath bomb kit14K/yr
- make your own bath bomb kit kids12K/yr
- bath bomb making kit for kids13K/yr
- bath bomb maker6K/yr
- bath bomb kit for kids4K/yr
- make your own bath bombs4K/yr
- so bomb diy bath bomb kit4K/yr
Top bath bomb making kit products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
So Bomb DIY Marble Bath Bomb Factory | Make 10 Scented Bath Bombs with Mixer & Moulds | Create Marble Designs | Gift for Kids
So Bomb DIY£15.364.3★31 rev
Canal Toys - DIY Bath Bomb Creative Kit - Make Your Own Multicolour and Scented Effervescent Bath Bombs - Children Manual Activity - Creative Leisure and Relaxation Gift Set
Canal Toys£6.704.7★159 rev
12 Pieces Bath Bomb Mould Set with Soap Dyes Shrink Wrap Bags - DIY Bath Bombs Making Supplies Kit Food Grade Skin Safe Bath Bomb Dye for Soap Coloring Crafting Fizzles - with Instructions
Limino£11.094.0★479 rev
Klever Kits Make Your Own Soap Kit and Bath Bomb Soap Making Kit for Kids STEM Science Kits DIY Craft for Kids Girls Gift Age 6 7 8 9 10 11 12 Years Gift for Birthday Christmas Halloween
Klever Kits£20.064.5★757 rev
Science4you Bath Bombs for Kids +8 Make your Own Bath Bombs Educational Science Kits: 6 Cosmetic Experiments Stem Toys Creative Gift Ideal to Birthday Easter Christmas for Girls Ages 7 8 9 10+
Science4you£17.784.3★1,276 rev
Newest
by launch date
Bath Bomb Making Kit Vezerd DIY Bath Bombs for Women Make Your Own SPA Products Soap Making Kit with Stainless Steel Molds Bath Foam Bath & Bathing Shower Accessories Gifts for Girls Women
Vezerd£24.073 rev
Science4you Bath Potions for Kids +6 Potions Making Kit Bath Bombs Educational Science Kits: 3 Bath Experiments Stem Toys Cosmetic Gift Ideal to Birthday Easter Christmas for Girls Age 6 7 8+
Science4you£12.2944 rev
FIREKOTOKids Bath Bombs kit - 6pcs Bubble Bottles & 2pcs Surprise Box Toy Interactive Science Toys for Kids Fun Bubble Bath giftIdea Birthday Gifts for Girls Boys-8-Pack
FIREKOTO£11.50139 rev
So Bomb DIY Marble Bath Bomb Factory | Make 10 Scented Bath Bombs with Mixer & Moulds | Create Marble Designs | Gift for Kids
So Bomb DIY£15.3631 rev
Klever Kits Make Your Own Soap Kit and Bath Bomb Soap Making Kit for Kids STEM Science Kits DIY Craft for Kids Girls Gift Age 6 7 8 9 10 11 12 Years Gift for Birthday Christmas Halloween
Klever Kits£20.06757 rev
Trending
90-day click momentumBath Bomb Making Kit Vezerd DIY Bath Bombs for Women Make Your Own SPA Products Soap Making Kit with Stainless Steel Molds Bath Foam Bath & Bathing Shower Accessories Gifts for Girls Women
Vezerd£24.074.6★
So Bomb DIY Marble Bath Bomb Factory | Make 10 Scented Bath Bombs with Mixer & Moulds | Create Marble Designs | Gift for Kids
So Bomb DIY£15.364.3★
Science4you Bath Potions for Kids +6 Potions Making Kit Bath Bombs Educational Science Kits: 3 Bath Experiments Stem Toys Cosmetic Gift Ideal to Birthday Easter Christmas for Girls Age 6 7 8+
Science4you£12.294.5★
Science4you Bath Bombs for Kids +8 Make your Own Bath Bombs Educational Science Kits: 6 Cosmetic Experiments Stem Toys Creative Gift Ideal to Birthday Easter Christmas for Girls Ages 7 8 9 10+
Science4you£17.784.3★
Klever Kits Make Your Own Soap Kit and Bath Bomb Soap Making Kit for Kids STEM Science Kits DIY Craft for Kids Girls Gift Age 6 7 8 9 10 11 12 Years Gift for Birthday Christmas Halloween
Klever Kits£20.064.5★
What buyers say about bath bomb making kit
What buyers praise and complain about, mined from review topics.What buyers love
“Good fun”
“Great present”
“Decent enough”
“The resulting spheres had smooth surfaces, and when dropped into the bathtub, they hissed and bubbled, releasing a faint lavender scent—the sense of accomplishment was immense”
“She loved it, really creative and does activities with Mum so I knew it would get used”
“Good value for money”
“easy to use”
“They are very vibrant”
“Not too messy either”
“Build quality: Good selection of reusable accessories”
What buyers complain about
“Colour was dull”
“Not worth money imo”
“the bombs only last about one minute”
“They are basically small bath bombs in a plastic paintbrush”
“Made me and my daughters cough a lot while using it”
“This item is terrible”
“I wish it worked like the pictures”
“Didn't work”
“they do not fizz”
“The instructions are a bit conservative; in practice, add a tiny bit less water, erring on the side of slightly drier rather than wetter”
Top return reasons
Common questions
- Is bath bomb making kit profitable to sell on Amazon United Kingdom?
- The niche generates £70K/yr across 12 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -24.5%. Flapen's verdict: Skip it (42/100).
- How competitive is the bath bomb making kit niche?
- 8 brands and 29 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 89% of demand.
- What do buyers complain about in bath bomb making kit?
- Top complaints mined from reviews: Color, Value For Money, Durability. The return rate is 0.4%.
- When does demand for bath bomb making kit peak?
- Demand peaks in Oct–Nov–Dec; the busiest month runs 5.4× the quietest.
- What does it cost to enter the bath bomb making kit niche?
- Listings span £6.70–£24.07; the average listing price is £13.73 (sweet spot $15–$100). The average incumbent carries 449 reviews — the moat a new listing must climb.