Is methylene blue 2% profitable to sell on Amazon United States?

The niche generates $33K/yr across 18 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is -22.2%. Flapen's verdict: Worth a look (58/100).

How competitive is the methylene blue 2% niche?

15 brands and 17 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 62% of demand.

What do buyers complain about in methylene blue 2%?

Top complaints mined from reviews: Color, Advertised Vs Actual Product, Value For Money. The return rate is 0.4%.

When does demand for methylene blue 2% peak?

Demand peaks in Aug–Sep; the busiest month runs 2.8× the quietest.

What does it cost to enter the methylene blue 2% niche?

Listings span $10.21–$54.79; the average listing price is $28.22 (sweet spot $15–$100). The average incumbent carries 276 reviews — the moat a new listing must climb.

Methylene Blue 2%

Worth a look

Shows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Avg price

Incredible$28.22

avg listing price — sweet spot $15–$100

Review moat

Great275.83

avg incumbent reviews — the moat a new listing must climb

Price range

Great$10.21–$54.79

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Conversion

Great8.4%

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

Brand share

Good62%

top-5 brand share — brands hold most of the demand

Competition

Good54%

top-5 click share — leaders hold, buyers still browse

Growth

Bad-22.2%

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

Market size

Bad$33K

$33K/yr · 14K searches

Signals No Dominant Brand

Is methylene blue 2% profitable on Amazon?

According to Flapen's Amazon United States niche tracking, methylene blue 2% is a $33K/yr Amazon United States market (14K searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Aug–Sep. Verdict: Worth a look — 58/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

methylene blue 2% market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 1K–1K; avg 0–100/product
Revenue / yr: $28K–$35K; units × avg price
Conversion rate: 8.4%
Avg BSR: #1,867
Page quality: 0%
Prime: 100%
Sponsored: 89%
Out of stock: 9.2%
Avg brand age: 16 months
Avg seller age: 259 days

Competition: brands, sellers & click share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 flat

Sellers

Top-5 brand share

62%

Top 20: 100%

Top-5 click share

54%

Top 20: 100%

Open market

30%

METHYLENE BLUE CO16%
Someraze14%
ENMEMO12%
Stanis Labs10%
ZEMUS9%
IROVV8%

methylene blue 2% demand & seasonality

Weekly Amazon search volume, last 60 weeks — -22.2% search growth over the last 90 days.

Peak months: Aug, Sep · busiest ÷ quietest = 2.8×

Open Trend

Top methylene blue 2% products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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 18 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

3% Methylene Blue Drops High Purity USP Pharmaceutical Grade Blue Methylene Liquid for Humans Cognitive & Focus Support No Alcohol No Formaldehyde 120 mL 4.06 FL OZ

Someraze$22.244.4★139 rev

Methylene Blue Drops 4.06 fl oz 2%-USP/Pharmaceutical Grade Solution Third-Party Tested No Formaldehyde Glass Bottle Made in China

ENMEMO$10.454.1★366 rev

Methylene Blue 2% Solution 3.75 fl oz USA Made Glass Bottle with Dropper

METHYLENE BLUE CO$37.954.2★1,218 rev

Methylene Blue Drops 3 fl oz 2%-USP/Pharmaceutical Grade 99.99% Pure Solution Third-Party Tested No Formaldehyde Glass Bottle

IROVV$10.214.4★53 rev

Supreme Methylene Blue Drops 2% (USP Grade) | Brain Supplements For Memory and Focus Fuel | 3rd Party Tested & Ultra High Purity | USA Made Methylene Blue For Humans - 60 Servings 2 FL.OZ 1 Pack

Stanis Labs$18.533.9★100 rev

Newest

by launch date

3% Methylene Blue Drops High Purity USP Pharmaceutical Grade Blue Methylene Liquid for Humans Cognitive & Focus Support No Alcohol No Formaldehyde 120 mL 4.06 FL OZ

Someraze$22.24139 rev

4mo ago

Methylene Blue Drops 3 fl oz 2%-USP/Pharmaceutical Grade 99.99% Pure Solution Third-Party Tested No Formaldehyde Glass Bottle

IROVV$10.2153 rev

7mo ago

Methylene Blue Drops 5% 99.99% Purity USP Pharmaceutical Grade Solution for Humans No Formaldehyde & No Alcohol 4.06 OZ FL

Nootlyn$24.24505 rev

8mo ago

Ultimate Methylene Blue Capsules 20mg - Memory Supplement for Brain Focus Fuel | Blue Methylene Pharmaceutical Grade - Energy and Focus Supplement | Energy Pills | 120 Servings

Stanis Labs$26.7493 rev

10mo ago

Supreme Methylene Blue Drops 2% (USP Grade) | Brain Supplements For Memory and Focus Fuel | 3rd Party Tested & Ultra High Purity | USA Made Methylene Blue For Humans - 60 Servings 2 FL.OZ 1 Pack

Stanis Labs$18.53100 rev

11mo ago

What reviews say buyers love and hate about methylene blue 2%

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

What buyers love

Quality-Overall25%

“Amazing quality”

Focus Enhancement10%

“I was able to focus”

Value For Money9%

“Excellent value”

Ease Of Use7%

“Convenient to use”

Advertised Vs Actual Product6%

“Works as advertised”

Efficiency6%

“Keeps me feelin’ good.”

Energy Level6%

“energy level has improved”

Color6%

“Proper color and noticeable results”

Strength3%

“Powerful stuff”

Locally Manufactured1%

“manufacturing standards”

What buyers complain about

Color9%

“Have had urine changes in color”

Advertised Vs Actual Product7%

“This is false advertising”

Value For Money6%

“Waste of money”

Stain Resistance6%

“It stains anything it touches”

Taste-Overall6%

“Nasty taste”

Functionality-Overall5%

“Does not work as well as oter brands”

Dosage4%

“Definitely not a 2% concentration, making dosing inaccurate and potentially dangerous”

Side Effects4%

“Adverse effect nausea/diarhea”

Quality-Overall4%

“Trash”

Ease Of Use4%

“Could not use”

Top return reasons

Advertised Vs Actual Product19%

Leak-Proof17%

Functionality-Overall13%

Certifications8%

Instructions/User Manual/Troubleshooting8%

Defective Material/Parts7%

Color5%

Value For Money3%

Compatibility-Overall3%

Quality-Overall2%

Common methylene blue 2% questions

Is methylene blue 2% profitable to sell on Amazon United States?: The niche generates $33K/yr across 18 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is -22.2%. Flapen's verdict: Worth a look (58/100).
How competitive is the methylene blue 2% niche?: 15 brands and 17 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 62% of demand.
What do buyers complain about in methylene blue 2%?: Top complaints mined from reviews: Color, Advertised Vs Actual Product, Value For Money. The return rate is 0.4%.
When does demand for methylene blue 2% peak?: Demand peaks in Aug–Sep; the busiest month runs 2.8× the quietest.
What does it cost to enter the methylene blue 2% niche?: Listings span $10.21–$54.79; the average listing price is $28.22 (sweet spot $15–$100). The average incumbent carries 276 reviews — the moat a new listing must climb.