sodium bromide
Worth a lookShows searches that convert (18.7% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Conversion
Incredible18.7%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Avg price
Incredible$34.14avg listing price — sweet spot $15–$100
Price range
Incredible$14.55–$93.01cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Review moat
Great481.31avg incumbent reviews — the moat a new listing must climb
Growth
Good+23.7%90-day search growth — must beat 0% to launch
Market size
Okay$212K$212K/yr · 33K searches
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
According to Flapen's Amazon United States niche tracking, sodium bromide is a $212K/yr Amazon United States market (33K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Sep. Verdict: Worth a look — 62/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
sodium bromide market data
- Units sold / yr
- 6K–8K
- avg 250–500/product
- Revenue / yr
- $205K–$273K
- units × avg price
- Conversion rate
- 18.7%
- Avg BSR
- #68
- Page quality
- 0%
- Prime
- 88%
- Sponsored
- 100%
- Out of stock
- 6.3%
- Avg brand age
- 80 months
- Avg seller age
- 166 days
Competition & brand share
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.Brands
10 rising
Sellers
49
Top-5 brand share
88%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
8%
- SpaChoice32%
- MAV AquaDoc30%
- POOLACC11%
- LEISURE TIME9%
- CLOROX Pool&Spa6%
- In The Swim4%
- Open — no brand owns it (4 brands, 8%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +23.7% search growth over the last 90 days.Peak months: Sep · busiest ÷ quietest = 2.1×
Top sodium bromide search terms
- sodium bromide for hot tub10K/yr
- bromine booster for hot tub7K/yr
- bromine booster12K/yr
- bromine booster for spa hot tub5K/yr
Top sodium bromide 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 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
SpaChoice 1-Pound Premium Bromine Booster Sodium Bromide for Hot Tub Made in USA
SpaChoice$19.274.3★466 rev
AquaDoc Bromine Booster for Hot Tub and Spa - 16 oz - Sodium Bromide to Establish Bromide Reserve - Compatible with Bromine Tablets - Made in USA
MAV AquaDoc$28.754.5★464 rev
1.8LB Bromine Booster for Hot Tubs & Spas | Fast-Acting Sodium Bromide to Build Bromide Reserve | Compatible with Bromine Sanitizers | Bromine Tablets Companion | Reduce Chemical Use & Odor
POOLACC$25.364.4★97 rev
Leisure Time BE1 Sodium Bromide Spa Care Bromine Reserve for Spas and Hot Tubs 16 Ounces
LEISURE TIME$20.264.2★1,058 rev
Clorox Pool&Spa Spa Brominating Granules for Low Odor Sanitization Restores Water Clarity in Hot Tubs and Spas 2 lb (Pack of 1)
CLOROX Pool&Spa$20.664.7★455 rev
Newest
by launch date
HTH Spa 86240 Bromine Reserve for Spas & Hot Tubs 16oz
hth Spa$14.551 rev
AquaDoc Bromine Tablets and Booster Bundle for Spa Hot Tubs - Includes 1.5lb Spa Tablets and 1lb Bromine Booster - Made in USA
MAV AquaDoc$53.0039 rev
1.8LB Bromine Booster for Hot Tubs & Spas | Fast-Acting Sodium Bromide to Build Bromide Reserve | Compatible with Bromine Sanitizers | Bromine Tablets Companion | Reduce Chemical Use & Odor
POOLACC$25.3697 rev
Oh Yuk 5-in-1 Weekly Hot Tub Chemicals Hot tub Clarifier Cleaner Conditioner Helps Control Water Balance & Combat Buildup Spa Care Chemicals for All Types Including Inflatable & Portable
Oh Yuk$24.75329 rev
In The Swim Spa & Hot Tub Bromine Booster - 2 Pounds for Enhanced Sanitization and Water Clarity - 2 Pack
In The Swim$47.05137 rev
Trending
90-day click momentumHTH Spa 86240 Bromine Reserve for Spas & Hot Tubs 16oz
hth Spa$14.551.0★
SpaChoice 1-Pound Premium Bromine Booster Sodium Bromide for Hot Tub Made in USA
SpaChoice$19.274.3★
Canaxy Sodium Bromide - 4 lb C1012
Canaxy$49.964.5★
In The Swim Spa & Hot Tub Bromine Booster - 2 Pounds for Enhanced Sanitization and Water Clarity - 2 Pack
In The Swim$47.054.4★
Oh Yuk 5-in-1 Weekly Hot Tub Chemicals Hot tub Clarifier Cleaner Conditioner Helps Control Water Balance & Combat Buildup Spa Care Chemicals for All Types Including Inflatable & Portable
Oh Yuk$24.754.3★
What buyers say about sodium bromide
What buyers praise and complain about, mined from review topics.What buyers love
“Overall, this product combination is an excellent choice”
“Definitely worth the price”
“Easy to use”
“does what it should”
“Clean and clear”
“The size is perfect for many uses if you use this all in one go you're either attempting to balance the Atlantic Ocean or you don't know what you're doing”
“Spa smells nice”
“so I dont have to worry about constant adjustments”
“The water has stayed clearer”
“Good spa chemicals from a US company”
What buyers complain about
“did not give results as promised”
“Does not fit frog”
“a couple of the items were leaking”
“chemical odors without being overly harsh on skin”
“in the past it has not been easy at times to keep The chemicals in balance”
“Also zero guidelines”
“The description says quickly - not finding that at all”
“Its a bit more expensive than some alternatives”
“Some of the products appear to be expired and look used”
“the test strips are junk”
Top return reasons
Common questions
- Is sodium bromide profitable to sell on Amazon United States?
- The niche generates $212K/yr across 16 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +23.7%. Flapen's verdict: Worth a look (62/100).
- How competitive is the sodium bromide niche?
- 10 brands and 49 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 88% of demand.
- What do buyers complain about in sodium bromide?
- Top complaints mined from reviews: Functionality-Overall, Size-Overall, Leak-Proof. The return rate is 0.5%.
- When does demand for sodium bromide peak?
- Demand peaks in Sep; the busiest month runs 2.1× the quietest.
- What does it cost to enter the sodium bromide niche?
- Listings span $14.55–$93.01; the average listing price is $34.14 (sweet spot $15–$100). The average incumbent carries 481 reviews — the moat a new listing must climb.