Is senna liquid profitable to sell on Amazon United States?

The niche generates $138K/yr across 6 tracked products. 90-day search growth is -1.9%. Flapen's verdict: Skip it (40/100).

How competitive is the senna liquid niche?

6 brands and 12 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in senna liquid?

Top complaints mined from reviews: Taste-Overall, Bitter, Ingredients-Overall. The return rate is 0.0%.

When does demand for senna liquid peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the senna liquid niche?

Listings span $9.27–$14.94; the average listing price is $11.81 (sweet spot $15–$100). The average incumbent carries 292 reviews — the moat a new listing must climb.

senna liquid

Skip it

Prices mostly outside the sweet spot ($9.27–$14.94) — this niche doesn't clear our bar today.

Conversion

Incredible20.6%

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

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Review moat

Great291.67

avg incumbent reviews — the moat a new listing must climb

Avg price

Okay$11.81

avg listing price — sweet spot $15–$100

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$138K

$138K/yr · 57K searches

Growth

Bad-1.9%

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

Brand share

Bad97%

top-5 brand share — brand-locked demand

Competition

Bad97%

top-5 click share — a locked-up shelf

Price range

Bad$9.27–$14.94

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

According to Flapen's Amazon United States niche tracking, senna liquid is a $138K/yr Amazon United States market (57K searches/yr). The top 5 brands hold 97% of demand. Verdict: Skip it — 40/100.

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

senna liquid market data

Units sold / yr: 13K–15K; avg 1,250–1,500/product
Revenue / yr: $148K–$177K; units × avg price
Conversion rate: 20.6%
Avg BSR: #232
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 5.1%
Avg brand age: 95 months
Avg seller age: 150 days

Competition & brand share

The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

97%

Top 20: 100%

Open market

GenCare47%
Rising22%
LLORENS PHARMACEUTICAL19%
MedPlus5%
RUGBY LABORATORIES4%
GeriCare3%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -1.9% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top senna liquid search terms

senna liquid23K/yr +6.3%19.1% conv.
senna syrup12K/yr -1.5%17.1% conv.
liquid senna8K/yr -1.3%17.6% conv.
liquid senna for kids3K/yr -12.9%13.1% conv.
senokot liquid3K/yr -4.9%9.1% conv.
senna liquid kids4K/yr -27.8%9.8% conv.
senna liquid laxative2K/yr +18.4%17.6% conv.
senna syrup for kids3K/yr -40.9%15.8% conv.

All search terms

Top senna liquid 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 6 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

GenCare - Senna Syrup Liquid Laxative (8 Fl Oz Bottle) All Natural Vegetable Sennosides Active Ingredient | Easy to Swallow Constipation Relief for Adults and Kids 12 and Older | Best Value Size

GenCare$13.034.5★635 rev

Rising Health Senna Sennosides Syrup 8.8 mg/5 mL | Natural Vegetable Laxative | Gentle Constipation Relief | Chocolate Flavor - 8 fl oz (237 mL)

Rising$10.294.5★245 rev

Senna Liquid Sennosides Senna Laxative by Llorens Care 8.8 mg. 5 mL. Made from Natural Sennosides. Liquid Laxative Alleviate Constipation & Provide Relief. Senna Syrup

LLORENS PHARMACEUTICAL$9.964.6★587 rev

MedPlus Natural Vegetable Laxative - Senna Syrup 8.8mg/5ml - Constipation Relief - Chocolate Flavor - Compared to Senokot Syrup - Made in USA

MedPlus$9.274.4★16 rev

Rugby 8.8 mg Senna Liquid - Made with Natural Vegetable Laxative Sennosides - Promotes Occasional Constipation Relief - Chocolate Flavored - 8 Fl. Oz.

RUGBY LABORATORIES$14.944.6★193 rev

Newest

by launch date

MedPlus Natural Vegetable Laxative - Senna Syrup 8.8mg/5ml - Constipation Relief - Chocolate Flavor - Compared to Senokot Syrup - Made in USA

MedPlus$9.2716 rev

1y ago

Rising Health Senna Sennosides Syrup 8.8 mg/5 mL | Natural Vegetable Laxative | Gentle Constipation Relief | Chocolate Flavor - 8 fl oz (237 mL)

Rising$10.29245 rev

3y ago

Senna Liquid Sennosides Senna Laxative by Llorens Care 8.8 mg. 5 mL. Made from Natural Sennosides. Liquid Laxative Alleviate Constipation & Provide Relief. Senna Syrup

LLORENS PHARMACEUTICAL$9.96587 rev

4y ago

GenCare - Senna Syrup Liquid Laxative (8 Fl Oz Bottle) All Natural Vegetable Sennosides Active Ingredient | Easy to Swallow Constipation Relief for Adults and Kids 12 and Older | Best Value Size

GenCare$13.03635 rev

4y ago

Rugby 8.8 mg Senna Liquid - Made with Natural Vegetable Laxative Sennosides - Promotes Occasional Constipation Relief - Chocolate Flavored - 8 Fl. Oz.

RUGBY LABORATORIES$14.94193 rev

6y ago

What buyers say about senna liquid

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

What buyers love

Efficiency17%

“Effectively”

Regulates Digestion12%

“Safe and Effective Product for Digestive Issues”

Value For Money12%

“Very Fair Price”

Taste-Overall10%

“Taste good”

Side Effects8%

“No side effects”

Sprain/Strain5%

“it's easy on the tummy with no cramping”

Quality-Overall5%

“Wonderful products”

Flavor4%

“Has a nice flavor”

Soft Feel3%

“Gentle regularity”

Ease Of Chewing/Swallowing2%

“easy to swallow”

What buyers complain about

Taste-Overall35%

“This has an high chemical taste”

Bitter14%

“very bitter”

Ingredients-Overall6%

“This brand has more bad ingredients hence pain”

Pain Relief-Overall6%

“Caused significant pain”

Regulates Digestion3%

“it's very hard on the liver”

Dosage3%

“I took more than what the recommended dose was and regretted it”

Ease Of Use3%

“If you don't use it correctly”

Acid Regulator/Stomach Ache Relief3%

“right after he started taking it he started complaining of stomach aches”

Common questions

Is senna liquid profitable to sell on Amazon United States?: The niche generates $138K/yr across 6 tracked products. 90-day search growth is -1.9%. Flapen's verdict: Skip it (40/100).
How competitive is the senna liquid niche?: 6 brands and 12 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in senna liquid?: Top complaints mined from reviews: Taste-Overall, Bitter, Ingredients-Overall. The return rate is 0.0%.
When does demand for senna liquid peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the senna liquid niche?: Listings span $9.27–$14.94; the average listing price is $11.81 (sweet spot $15–$100). The average incumbent carries 292 reviews — the moat a new listing must climb.