Is sugar free cough syrup profitable to sell on Amazon United States?

The niche generates $111K/yr across 14 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -35.7%. Flapen's verdict: Skip it (38/100).

How competitive is the sugar free cough syrup niche?

8 brands and 29 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in sugar free cough syrup?

Top complaints mined from reviews: Taste-Overall, Cough Relief, Functionality-Overall. The return rate is 0.1%.

When does demand for sugar free cough syrup peak?

Demand peaks in Jan–Feb–Sep–Dec; the busiest month runs 3.3× the quietest.

What does it cost to enter the sugar free cough syrup niche?

Listings span $5.94–$25.60; the average listing price is $14.02 (sweet spot $15–$100). The average incumbent carries 2,757 reviews — the moat a new listing must climb.

sugar free cough syrup

Skip it

Soft demand (-35.7% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great10.1%

search→purchase rate — share of searches ending in a sale

Avg price

Good$14.02

avg listing price — sweet spot $15–$100

Price range

Good$5.94–$25.60

cheapest to priciest tracked listing — scored on the share inside $15–$100

Review moat

Okay2,757.21

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$111K

$111K/yr · 79K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad76%

top-5 click share — a locked-up shelf

Brand share

Bad94%

top-5 brand share — brand-locked demand

Growth

Bad-35.7%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon United States niche tracking, sugar free cough syrup is a $111K/yr Amazon United States market (79K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Jan–Feb–Sep–Dec. Verdict: Skip it — 38/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

sugar free cough syrup market data

Units sold / yr: 13K–15K; avg 1,250–1,500/product
Revenue / yr: $175K–$210K; units × avg price
Conversion rate: 10.1%
Avg BSR: #155
Page quality: 0%
Prime: 93%
Sponsored: 86%
Out of stock: 0.0%
Avg brand age: 74 months
Avg seller age: 157 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 rising

Sellers

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

Diabetic Tussin54%
Safetussin30%
Vicks5%
HealthA2Z3%
Coricidin HBP3%
Gooi2%
Open — no brand owns it (2 brands, 3%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -35.7% search growth over the last 90 days.

Peak months: Jan, Feb, Sep, Dec · busiest ÷ quietest = 3.3×

Open Trend

Top sugar free cough syrup search terms

sugar free cough syrup18K/yr -16.8%7.8% conv.
diabetic tussin14K/yr -20.6%14.3% conv.
diabetic cough syrup sugar free9K/yr -47.7%17.0% conv.
diabetic tussin sugar free maximum strength6K/yr -27.7%25.2% conv.
sugar free cough medicine4K/yr -21.4%10.6% conv.
diabetic tussin sugar free cough syrup5K/yr -50.5%12.9% conv.
diabetic cough medicine5K/yr -48.6%10.5% conv.
sugar free cold medicine3K/yr -46.0%5.5% conv.
robitussin sugar free cough syrup3K/yr -41.8%6.3% conv.
robitussin sugar free4K/yr -61.8%9.2% conv.

All search terms

Top sugar free cough syrup 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.

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

Diabetic Tussin DM Max Strength Cough & Chest Congestion Relief Safe for Diabetics Berry Flavored 8 fl oz. (Pack of 1)

Diabetic Tussin$11.284.6★4,769 rev

Safetussin DM Cough & Chest Congestion 8 oz Expectorant Mucus Relief Cough Relief Syrup Safe for Adults with High Blood Pressure & Diabetes

Safetussin$10.184.7★2,690 rev

Diabetic Tussin DM Maximum Strength Cough Medicine for Adults People with Diabetes No Sugar Dyes Sodium Fructose or Alcohol Berry Flavored Cough Syrup 4 Fl Oz Pack of 3

Diabetic Tussin$17.374.6★4,769 rev

Diabetic Tussin DM Maximum Strength Cough Medicine for Adults People with Diabetes No Sugar Dyes Sodium Fructose or Alcohol Berry Flavored Cough Syrup 4 Fl Oz

Diabetic Tussin$7.534.6★4,769 rev

VICKS DayQuil & NyQuil Diabetes Cold & Flu Relief Medicine Co-Pack Powerful Multi-Symptom Daytime & Nighttime Relief for Cold Cough and Flu Symptoms Sugar & Alcohol Free 2 x 12 FL OZ Bottles

Vicks$20.584.8★404 rev

Newest

by launch date

Gooi Extra Wide Diabetic Socks for Swollen Feet Men Women Non Binding Top Loose Fit Over the Calf Soft Stretch Edema Neuropathy Bariatric Comfort Plus Size Lemon Ice Pattern

Gooi$15.802,576 rev

8mo ago

HealthA2Z Tussin DM Sugar Free | 8 FL.Oz Raspberry Flavor | Dextromethorphan HBr 20mg Guaifenesin 200mg | for Adults with High Blood Pressure & Diabetes | Cough Suppressant & Expectorant

HealthA2Z$8.9960 rev

11mo ago

Safetussin PM Night Time Cold and Cough Medicine for Adults 8 oz Cough Relief Syrup

Safetussin$10.881,043 rev

1y ago

VICKS DayQuil & NyQuil Diabetes Cold & Flu Relief Medicine Co-Pack Powerful Multi-Symptom Daytime & Nighttime Relief for Cold Cough and Flu Symptoms Sugar & Alcohol Free 2 x 12 FL OZ Bottles

Vicks$20.58404 rev

2y ago

Diabetic Tussin Sugar Free Sore Throat & Cough Drops Wild Cherry 15 Count Sodium-Free Lozenges with Soothing Liquid Center

Diabetic Tussin$7.33264 rev

2y ago

What buyers say about sugar free cough syrup

What buyers praise and complain about, mined from review topics.

What buyers love

Cough Relief22%

“Excellent Cough Syrup”

Value For Money9%

“Good price”

Quality-Overall9%

“Good quality”

Efficiency7%

“This is effective”

Advertised Vs Actual Product5%

“As advertised”

Taste-Overall5%

“It works and it tastes ok”

Size-Overall5%

“Excellent fit”

Comfort-Overall4%

“Super Comfortable”

Cold Relief4%

“Help me get through my cold”

Blood Sugar Level3%

“For diabetics works good”

What buyers complain about

Taste-Overall11%

“Taste like crap”

Cough Relief7%

“very bad moist cough very sick”

Functionality-Overall5%

“Does not work”

Blood Sugar Level5%

“did not raise my blood sugar”

Ease Of Use4%

“Unable to use”

Value For Money3%

“They are socks, expensive socks”

Size-Overall3%

“Runs small”

Quality-Overall2%

“cheaply made”

Thigh Fit2%

“Absolutely horrible would not even stay up over my calf very cheaply made”

Strength2%

“it is weak”

Top return reasons

Size-Overall31%

Feet Fit13%

Length12%

Material Quality5%

Advertised Vs Actual Product5%

Width4%

Thigh Fit4%

Ankle Support3%

Thickness3%