---
title: "Rainbow Bath Bomb — $108K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/rainbow-bath-bomb"
last_updated: "2026-08-11T02:50:22.197Z"
locale: en
meta:
description: "Niche score 46/100 · $108K/yr market · 81K searches/yr · $14.88 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $108K/yr market · 81K searches/yr · $14.88 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Rainbow Bath Bomb — $108K/yr Amazon US Niche (2026) - Flapen"
---
# **rainbow bath bomb**
**Skip it**
Soft demand (-65.8% this quarter) — this niche doesn't clear our bar today.
Market size 26Growth 0Conversion 83Competition 21Returns 97Price range 69Avg price 74Brand share 34Review moat 51Quality gap 79
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****8.9%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Good****$14.88**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$7.31–$31.74**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****1,465.57**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$108K**
$108K/yr · 81K searches
**Competition**
**Bad****75%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-65.8%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, rainbow bath bomb is a $108K/yr Amazon United States market (81K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Mar–Dec. Verdict: Skip it — 46/100.
Data updated Jul 15, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **rainbow bath bomb market data**
- **Units sold / yr**
- **6K–8K**
- avg 500–750/product
- **Revenue / yr**
- **$89K–$119K**
- units × avg price
- **Conversion rate**
- **8.9%**
- **Avg BSR**
- **#76**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **93%**
- **Out of stock**
- **2.6%**
- **Avg brand age**
- **32 months**
- **Avg seller age**
- **181 days**
## **Competition & brand share**
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▲rising
**Sellers**
**13**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**75%**
Top 20: 100%
**Open market**
**11%**
- Beauwell40% - Elfinbay16% - Mineral Me California12% - AWKUWA11% - Tub Works7% - NEWFEIFAN4% - Open — no brand owns it (4 brands, 11%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -65.8% search growth over the last 90 days.
15K10KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Dec · busiest ÷ quietest = 5.6×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/rainbow-bath-bomb/trend)
## **Top rainbow bath bomb search terms**
- **rainbow bath bombs for kids**28K/yr-48.5%4.6% conv. - **rainbow bath bombs**41K/yr-77.1%6.0% conv. - **rainbow bath bomb**13K/yr-57.1%4.3% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/rainbow-bath-bomb/search-terms)
## **Top rainbow bath bomb 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.
0%10%$11K20%$22K30%$32K40%$43K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Rainbow Bath Bombs for Kids Handmade 4 Pcs Kids Bath Bombs Gift Set for Girls Teens Toddler Rainbow Bubble Fizzy**Beauwell**$9.56**4.5★2,352 rev](https://www.amazon.com/dp/B0B8JWXJV7) [2**Rainbow Bath Bombs for Kids 4 XL Kid Bath Bombs with Surprise Colors Inside Organic Bathbombs for Women Stocking Stuffers for Kids Christmas Gifts for Girls Boys**Elfinbay**$16.41**4.6★719 rev](https://www.amazon.com/dp/B0CGC1BN42) [3**Bath Bombs for Kids - All Natural Magic Rainbow BathBombs with Organic Ingredients Moisturizing Vibrant Colors & Rich Bubbles Cloud Bath Bombs Birthday Gifts for Kids Girls Boys**Mineral Me California**$9.63**4.4★4,014 rev](https://www.amazon.com/dp/B08R1YNR5D) [4**Rainbow Bath Bombs for Kids - 4 Pcs Handmade Kid Bath Bombs Birthday Gifts for Kids Girls Bubble Bath**AWKUWA**$8.56**4.4★642 rev](https://www.amazon.com/dp/B0D5MC45VC) [5**Tub Works Lil Bursts Mini Bath Bombs for Kids 90 Count Rainbow | Nontoxic | Tiny Kids Bath Bombs with A Burst of Color Foam & Bubbles | Customize Toddler Bath with 7 Colors | Make Bathtub Art**Tub Works**$12.78**4.2★127 rev](https://www.amazon.com/dp/B0GRXGDWS7)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**2026 New Upgraded Bath Bombs with Surprise Inside 12pcs Bath Bombs for Kids with Toy Inside Best Birthday Party Surprise Rainbow Ocean Fizzy Bath Bomb Gift Set for Girls and Boys(Sea Animal)**Generic**$31.74**7 rev3mo ago](https://www.amazon.com/dp/B0GW1QC1C3) [**Tub Works Lil Bursts Mini Bath Bombs for Kids 90 Count Rainbow | Nontoxic | Tiny Kids Bath Bombs with A Burst of Color Foam & Bubbles | Customize Toddler Bath with 7 Colors | Make Bathtub Art**Tub Works**$12.78**127 rev4mo ago](https://www.amazon.com/dp/B0GRXGDWS7) [**Rainbow Bath Bombs for Kids Boys & Girls Gifts Colorful Dissolving Toys with Surprise Colors Safe & Non-Toxic DIY Bath Time STEM Learning Activity Bath Toys Ages 3-12**NEWFEIFAN**$7.31**283 rev1y ago](https://www.amazon.com/dp/B0DYXHPW5F) [**Mr. Bubble Galaxy Bath Bombs Signature Bubble Gum Scent Set of 8 Different Bath Bomb Planets**Mr. Bubble**$11.98**285 rev1y ago](https://www.amazon.com/dp/B0DL7CHSNW) [**Rainbow Bath Bombs for Kids - 6 Pcs Handmade Kids Bath Bombs Bubble Bath for Girls Birthday Gifts for Kids Girls**AWKUWA**$12.16**642 rev1y ago](https://www.amazon.com/dp/B0D3G69ZVN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**2026 New Upgraded Bath Bombs with Surprise Inside 12pcs Bath Bombs for Kids with Toy Inside Best Birthday Party Surprise Rainbow Ocean Fizzy Bath Bomb Gift Set for Girls and Boys(Sea Animal)**Generic**$31.74**2.8★**▲ 596%**](https://www.amazon.com/dp/B0GW1QC1C3) [**20 Pack Bath Bombs for Kids with Surprise Inside Bubble Bath Toys Organic Natural Bath Bombs Set Easter Basket Stuffers Birthday Christmas Gift for Kids 3 4 5 6 7 8 Years Old Boys Toddlers Girls**GDXINYES**$25.14**3.9★**▲ 465%**](https://www.amazon.com/dp/B0D5Z33X94) [**Tub Works Lil Bursts Mini Bath Bombs for Kids 90 Count Rainbow | Nontoxic | Tiny Kids Bath Bombs with A Burst of Color Foam & Bubbles | Customize Toddler Bath with 7 Colors | Make Bathtub Art**Tub Works**$12.78**4.2★**▲ 265%**](https://www.amazon.com/dp/B0GRXGDWS7) [**Mr. Bubble Galaxy Bath Bombs Signature Bubble Gum Scent Set of 8 Different Bath Bomb Planets**Mr. Bubble**$11.98**4.4★**▲ 112%**](https://www.amazon.com/dp/B0DL7CHSNW) [**Rainbow Bath Bombs for Kids Handmade 8 Pcs Kids Bath Bombs Gift Set for Girls Teens Toddler Rainbow Bubble Fizzy**Beauwell**$19.53**4.5★**▲ 107%**](https://www.amazon.com/dp/B0B8JWMC5M)
**~~View all trending →~~**
## **What buyers say about rainbow bath bomb**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Color**35%
*“Vibrant color”*
**Smell**10%
*“They smell fresh”*
**Value For Money**8%
*“Great value”*
**Stain Resistance**7%
*“no staining on the tub”*
**Gifting Purpose**5%
*“Perfect gift idea”*
**Quality-Overall**5%
*“Cute product”*
**Advertised Vs Actual Product**5%
*“Exactly what I wanted”*
**Allergies**3%
*“No allergies to them”*
**Ease Of Cleaning**2%
*“Easily washes off bodies and tubs”*
**Efficiency**2%
*“Does the job”*
### **What buyers complain about **
**Advertised Vs Actual Product**25%
*“Not as described”*
**Size-Overall**17%
*“Incorrect size”*
**Color**13%
*“would have been better if they were darker”*
**Value For Money**9%
*“Not at all worth the price”*
**Smell**5%
*“The smell is too strong”*
**Quality-Overall**5%
*“Cheap quality”*
**Functionality-Overall**4%
*“These barely work”*
**Allergies**3%
*“she suddenly has rashes all over her body”*
**Stain Resistance**2%
*“This WILL stain your tub”*
**Durability**2%
*“Breaks easily”*
### **Top return reasons **
**Advertised Vs Actual Product**28%
**Color**14%
**Functionality-Overall**13%
**Size-Overall**11%
**Smell**6%
**Ingredients-Overall**4%
**Stain Resistance**4%
**Defective Material/Parts**3%
**Value For Money**3%
**Gap/Hole**2%
## **Common questions**
- **Is rainbow bath bomb profitable to sell on Amazon United States?**
- The niche generates $108K/yr across 14 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -65.8%. Flapen's verdict: Skip it (46/100).
- **How competitive is the rainbow bath bomb niche?**
- 10 brands and 13 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in rainbow bath bomb?**
- Top complaints mined from reviews: Advertised Vs Actual Product, Size-Overall, Color. The return rate is 0.7%.
- **When does demand for rainbow bath bomb peak?**
- Demand peaks in Mar–Dec; the busiest month runs 5.6× the quietest.
- **What does it cost to enter the rainbow bath bomb niche?**
- Listings span $7.31–$31.74; the average listing price is $14.88 (sweet spot $15–$100). The average incumbent carries 1,466 reviews — the moat a new listing must climb.
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