Is spearmint capsules profitable to sell on Amazon United States?

The niche generates $889K/yr across 8 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -0.7%. Flapen's verdict: Worth a look (53/100).

How competitive is the spearmint capsules niche?

7 brands and 13 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in spearmint capsules?

Top complaints mined from reviews: Smell, Functionality-Overall, Regulates Digestion. The return rate is 0.0%.

When does demand for spearmint capsules peak?

Demand peaks in Mar–Apr–May; the busiest month runs 2.4× the quietest.

What does it cost to enter the spearmint capsules niche?

Listings span $6.17–$27.67; the average listing price is $17.58 (sweet spot $15–$100). The average incumbent carries 1,118 reviews — the moat a new listing must climb.

spearmint capsules

Worth a look

Shows low returns (0.0%), but a concentrated shelf (top 5 take 90% of clicks) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Great10.8%

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

Avg price

Great$17.58

avg listing price — sweet spot $15–$100

Market size

Great$889K

$889K/yr · 469K searches

Review moat

Good1,118

avg incumbent reviews — the moat a new listing must climb

Price range

Good$6.17–$27.67

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Growth

Bad-0.7%

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

Brand share

Bad94%

top-5 brand share — brand-locked demand

Competition

Bad90%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, spearmint capsules is a $889K/yr Amazon United States market (469K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Mar–Apr–May. Verdict: Worth a look — 53/100.

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

spearmint capsules market data

Units sold / yr: 40K–50K; avg 4,000–5,000/product
Revenue / yr: $703K–$879K; units × avg price
Conversion rate: 10.8%
Avg BSR: #1,394
Page quality: 0%
Prime: 100%
Sponsored: 88%
Out of stock: 0.0%
Avg brand age: 80 months
Avg seller age: 151 days

Competition & brand share

The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 rising

Sellers

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

90%

Top 20: 100%

Open market

Swanson52%
Nutricost21%
HERBAMAMA10%
Wholesome Story7%
Dalnara4%
VINATURA4%
Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 103 weeks — -0.7% search growth over the last 90 days.

Peak months: Mar, Apr, May · busiest ÷ quietest = 2.4×

Open Trend

Top spearmint capsules search terms

spearmint capsules241K/yr +3.1%11.2% conv.
swanson vitamins61K/yr -4.3%0.3% conv.
spearmint leaf capsules31K/yr +8.9%11.4% conv.
swanson38K/yr +9.4%0.1% conv.
spearmint supplement28K/yr -30.3%7.7% conv.
spearmint tea capsules13K/yr -10.6%8.9% conv.
swanson spearmint capsules8K/yr +29.1%13.9% conv.
swanson vitamins and supplements7K/yr +6.6%0.0% conv.
spearmint pills8K/yr -21.4%9.3% conv.
spearmint capsules pcos6K/yr +0.4%6.1% conv.

All search terms

Top spearmint capsules 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 8 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Swanson Spearmint Leaf Full Spectrum Digestive Supplement for Digestive-Comfort-Seeking Adults - 400 mg Mentha Spicata (60 Capsules)

Swanson$11.354.5★2,211 rev

Nutricost Spearmint Leaf (1000mg) 120 Capsules - Spearmint Supplement GMO-Free Gluten-Free 60 Servings

Nutricost$11.794.3★140 rev

HERBAMAMA Spearmint Capsules - 1000 mg Spearmint Leaf Capsules for Digestive Support - Vegan Non-GMO Digestive & Skin Supplement - 50-Day Supply

HERBAMAMA$22.954.5★1,435 rev

Wholesome Story$27.674.6★281 rev

Swanson Spearmint Leaf Full Spectrum Digestive Supplement for Digestive-Comfort-Seeking Adults - 400 mg Mentha Spicata (60 Capsules 2 Pack)

Swanson$20.514.6★752 rev

Newest

by launch date

USDA Organic Spearmint capsules (1200 mg) Digestive Support 60-Day Supply

Dalnara$21.2434 rev

11mo ago

Nutricost Spearmint Leaf (1000mg) 120 Capsules - Spearmint Supplement GMO-Free Gluten-Free 60 Servings

Nutricost$11.79140 rev

1y ago

VINATURA Spearmint Capsules Supplement - Spearmint Leaf Extract Enhanced with DIM & Saw Palmetto for Unwanted Hair Women Health & Skin 60 Capsules

VINATURA$18.94295 rev

2y ago

Wholesome Story$27.67281 rev

3y ago

HERBAMAMA Spearmint Capsules - 1000 mg Spearmint Leaf Capsules for Digestive Support - Vegan Non-GMO Digestive & Skin Supplement - 50-Day Supply

HERBAMAMA$22.951,435 rev

6y ago

What buyers say about spearmint capsules

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

What buyers love

Hormonal Balance9%

“Excellent for my hormonal acne”

Value For Money8%

“Not expensive”

Quality-Overall8%

“appears to be well made”

Ease Of Use7%

“Its simple, effective, and easy to incorporate into my daily routine”

Smell5%

“No bad odors or smell”

Hair Growth5%

“It has helped reduce face hair for PCOS relative”

Skin Health4%

“helps acne”

Vegan/Organic4%

“The capsules are easy to swallow, and I appreciate that theyre organic, vegan, and made with simple ingredients”

Ease Of Chewing/Swallowing4%

“The capsules are easy to take”

Acid Regulator/Stomach Ache Relief3%

“No minty burps at all or stomach issues”

What buyers complain about

Smell11%

“There isnt a strong scent or taste”

Functionality-Overall7%

“Didn't work”

Regulates Digestion4%

“had to stop using because of how bad it hurt my stomach”

Taste-Overall4%

“and have no mint smell or taste even after opening a capsule”

Size-Overall4%

“Pill size is small”

Dosage3%

“Looks like the dosages have changed, therefore, this shouldn't be listed under the same product because it is now a different product”

Side Effects3%

“digestive soothing—but drinking 3+ cups of tea a day just wasn't sustainable for my schedule”

Ingredients-Overall3%

“Starting to think these herbal remedies are not worth it”

Heart Health3%

“This gave me the worst heartburn of my life”

Skin Health3%

“Instead of helping my skin”

Top return reasons

Functionality-Overall80%

Contamination20%

Common questions

Is spearmint capsules profitable to sell on Amazon United States?: The niche generates $889K/yr across 8 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -0.7%. Flapen's verdict: Worth a look (53/100).
How competitive is the spearmint capsules niche?: 7 brands and 13 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in spearmint capsules?: Top complaints mined from reviews: Smell, Functionality-Overall, Regulates Digestion. The return rate is 0.0%.
When does demand for spearmint capsules peak?: Demand peaks in Mar–Apr–May; the busiest month runs 2.4× the quietest.
What does it cost to enter the spearmint capsules niche?: Listings span $6.17–$27.67; the average listing price is $17.58 (sweet spot $15–$100). The average incumbent carries 1,118 reviews — the moat a new listing must climb.