mouthwash
Skip itA small market ($6K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Competition
Great39%top-5 click share — an open shelf
Price range
Good$4.52–$26.18cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good$12.09avg listing price — sweet spot $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Conversion
Okay3.2%search→purchase rate — share of searches ending in a sale
Growth
Okay+6.2%90-day search growth — must beat 0% to launch
Review moat
Bad4,801.09avg incumbent reviews — the moat a new listing must climb
Brand share
Bad95%top-5 brand share — brand-locked demand
Market size
Bad$6K$6K/yr · 16K searches
According to Flapen's Amazon Singapore niche tracking, mouthwash is a $6K/yr Amazon Singapore market (16K searches/yr). The top 5 brands hold 95% of demand. Verdict: Skip it — 43/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
mouthwash market data
- Units sold / yr
- 2K–3K
- avg 0–100/product
- Revenue / yr
- $24K–$30K
- units × avg price
- Conversion rate
- 3.2%
- Avg BSR
- #38
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 9%
- Out of stock
- 21.6%
- Avg brand age
- 86 months
- Avg seller age
- 0 days
Competition & brand share
Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.Brands
7 falling
Sellers
14
Top-5 brand share
95%
Top 20: 100%
Top-5 click share
39%
Top 20: 94%
Open market
2%
- Listerine47%
- TheraBreath16%
- Pearlie White13%
- ノニオ11%
- Colgate8%
- Crest3%
- Open — no brand owns it (1 brand, 2%)
Demand
Weekly Amazon search volume, last 29 weeks — +6.2% search growth over the last 90 days.Top mouthwash 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 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Listerine Mouthwash Total Care Zero 1000ml
Listerine$9.654.4★15 rev
Pearlie White Fluorinze Alcohol Free Mouth Rinse Twin Pack 750ml
Pearlie White$9.524.7★35 rev
TheraBreath Fresh Breath Dentist Formulated Oral Rinse Mild Mint 16 Ounce (Pack of 2)
TheraBreath$25.374.6★45,882 rev
Listerine Mouthwash Cool Mint Zero (0% Alcohol) 1000ml (1L)
Listerine$8.724.4★26 rev
NONIO (Quasi-drug) Mouthwash Light Herb Mint Non-Alcoholic Type Mouth Wash Liquid Kills Bacteria Bacteria Bacteria 33.8 fl oz (1 000 ml) x 2 Packs + Mini Rinse 2.8 fl oz (80 ml) x 2 Packs
ノニオ$19.584.3★204 rev
Newest
by launch date
TheraBreath Fresh Breath Oral Rinse Invigorating Icy Mint 473ml
TheraBreath$15.250 rev
Crest Pro-Health Advanced Mouthwash Alcohol Free Multi-Protection Fresh Mint 1 L (33.8 fl oz) Pack of 2
Crest$22.3812,107 rev
NONIO (Quasi-drug) Mouthwash Light Herb Mint Non-Alcoholic Type Mouth Wash Liquid Kills Bacteria Bacteria Bacteria 33.8 fl oz (1 000 ml) x 2 Packs + Mini Rinse 2.8 fl oz (80 ml) x 2 Packs
ノニオ$19.58204 rev
Listerine Cool Mint Zero Antiseptic Mouthwash 1L (Pack of 3)
Listerine$17.3726 rev
Listerine Total Care Antiseptic Mouthwash 1L (Pack of 3)
Listerine$20.3810 rev
Trending
90-day click momentumNONIO (Quasi-drug) Mouthwash Light Herb Mint Non-Alcoholic Type Mouth Wash Liquid Kills Bacteria Bacteria Bacteria 33.8 fl oz (1 000 ml) x 2 Packs + Mini Rinse 2.8 fl oz (80 ml) x 2 Packs
ノニオ$19.584.3★
Crest Pro-Health Advanced Mouthwash Alcohol Free Multi-Protection Fresh Mint 1 L (33.8 fl oz) Pack of 2
Crest$22.384.7★
Listerine Mouthwash Cool Mint 1000ml
Listerine$7.994.9★
TheraBreath Fresh Breath Dentist Formulated 24-Hour Oral Rinse Icy Mint 16 Ounce (Pack of 2)
TheraBreath$26.184.8★
NONIO Mouthwash - Clear Herb Mint 600 milliliters
ノニオ$5.884.1★
What buyers say about mouthwash
What buyers praise and complain about, mined from review topics.What buyers love
“Great mouthwash”
Top return reasons
Common questions
- Is mouthwash profitable to sell on Amazon Singapore?
- The niche generates $6K/yr across 23 tracked products. 90-day search growth is +6.2%. Flapen's verdict: Skip it (43/100).
- How competitive is the mouthwash niche?
- 7 brands and 14 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 95% of demand.
- What does it cost to enter the mouthwash niche?
- Listings span $4.52–$26.18; the average listing price is $12.09 (sweet spot $15–$100). The average incumbent carries 4,801 reviews — the moat a new listing must climb.