Methylene Blue
soft demand (-37.1% this quarter) — Methylene Blue doesn't clear our bar today.
Flapen Score
Ranks 1,283 of 2,481 Beauty niches · −1 vs the category median of 47
Is Methylene Blue profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Methylene Blue is a £271K/yr Amazon United Kingdom market (300K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Jan–Feb–Mar. Verdict: Skip it — 46/100.
Methylene Blue: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -37.1% over the last 90 days and 3.7% of searches end in a purchase.
£271K
revenue / yr
Who owns the niche?
The top 5 brands hold 84% of demand, so 16% of the market is open.
16%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 9 products
Top Methylene Blue products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
5% Methylene blue Aqueous Solution Methylthioninium Chloride 120ml Glass bottle with pipette for Research & Analytical Use
- Price
- £25.10
- Rating
- 5.0/5
- Reviews
- 8
- Age
- 2mo ago

NT Labs Aquarium Methylene Blue Fish Medicine (100ml Treats 900L)
- Price
- £8.17
- Rating
- 4.6/5
- Reviews
- 244
- Age
- 1y ago

Methylene Blue 2% Solution - Pharmaceutical USP Grade Purity 99.99% No Formaldehyde Formula with Child Resistant Dropper - 50 mL (1.7 fl. oz.)
- Price
- £24.91
- Rating
- 4.2/5
- Reviews
- 31
- Age
- 2mo ago

CZTL Methylene Blue Powder - 1g
- Price
- £24.89
- Rating
- 4.5/5
- Reviews
- 69
- Age
- 5y ago

Methylene Blue Infused Whipped Grass Fed Beef Tallow Balm Anti-Aging Moisturizer Stretchmarks Rosacea Psoriasis Eczema Acne All skin types (1.7 oz)
- Price
- £18.91
- Rating
- 4.2/5
- Reviews
- 171
- Age
- 2y ago
Trending
90-day click momentum
5% Methylene blue Aqueous Solution Methylthioninium Chloride 120ml Glass bottle with pipette for Research & Analytical Use
- Price
- £25.10
- Rating
- 5.0/5
- Reviews
- 8
- Age
- 2mo ago

DMSO Dimethyl Sulfoxide 99.9% | Ph. Eur. 125ml in Amber Glass Bottle | Undiluted & Odourless | Made in United Kingdom by Dr Hash
- Price
- £14.05
- Rating
- 4.5/5
- Reviews
- 136
- Age
- 5y ago

Methylene Blue 2% Solution - Pharmaceutical USP Grade Purity 99.99% No Formaldehyde Formula with Child Resistant Dropper - 50 mL (1.7 fl. oz.)
- Price
- £24.91
- Rating
- 4.2/5
- Reviews
- 31
- Age
- 2mo ago

Methylene Blue Powder 6 Grams (USP Grade 99+%) - Prepare 600 mL 1% Solution
- Price
- £40.61
- Rating
- 4.2/5
- Reviews
- 107
- Age
- 3y ago

Kordon Methylene Blue Disease Preventative Safe for Freshwater & Saltwater Aquariums Prevents Fungal Infections & Treats Parasites Reduces Fish Stress 4-Ounces
- Price
- £11.93
- Rating
- 4.7/5
- Reviews
- 3,643
- Age
- 15y ago
Newest
by launch date
Methylene Blue 2% Solution - Pharmaceutical USP Grade Purity 99.99% No Formaldehyde Formula with Child Resistant Dropper - 50 mL (1.7 fl. oz.)
- Price
- £24.91
- Rating
- 4.2/5
- Reviews
- 31
- Age
- 2mo ago

5% Methylene blue Aqueous Solution Methylthioninium Chloride 120ml Glass bottle with pipette for Research & Analytical Use
- Price
- £25.10
- Rating
- 5.0/5
- Reviews
- 8
- Age
- 2mo ago

Methylene Blue
- Price
- £49.63
- Rating
- 4.3/5
- Reviews
- 106
- Age
- 1y ago

NT Labs Aquarium Methylene Blue Fish Medicine (100ml Treats 900L)
- Price
- £8.17
- Rating
- 4.6/5
- Reviews
- 244
- Age
- 1y ago

Methylene Blue Infused Whipped Grass Fed Beef Tallow Balm Anti-Aging Moisturizer Stretchmarks Rosacea Psoriasis Eczema Acne All skin types (1.7 oz)
- Price
- £18.91
- Rating
- 4.2/5
- Reviews
- 171
- Age
- 2y ago
Competition: brands, sellers & click share
The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.
Brands
9 rising
Sellers
77
Top-5 brand share
84%
Top 20: 100%
Top-5 click share
84%
Top 20: 100%
Open market
11%
- LUMIN LIFE34%
- NT Labs19%
- 7 Labs14%
- CZTL9%
- AzulBotanicals7%
- Kordon6%
- Open — no brand owns it (3 brands, 11%)
Methylene Blue demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jan, Feb, Mar · busiest ÷ quietest = 3.0×
Top Methylene Blue search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- methylene blue236K/yr
- methylene blue for humans32K/yr
- methylene10K/yr
- methylene blue capsules10K/yr
- blue methylene5K/yr
- methylene blue pharmaceutical grade5K/yr
- methylene blue tablets2K/yr
What reviews say buyers love and hate about Methylene Blue
What buyers mention most, as a share of all reviews.
What buyers love
91% of reviews“Good quality & always delivers on time”
“Does what it says”
“Very easy to use”
“Good value for money”
“It works well for me”
What buyers complain about
73% of reviews“One drop and it's useless”
“there isnt a huge amount of transparent third-party testing information easily available”
“It does turn whatever you add it too blue”
“The first this I will say is this stuff can stain so be very careful using it”
“which seemed very expensive”
Methylene Blue return rate & reasons
Why buyers send it back, as a share of all return requests.
0.7%
Return rate
5%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Methylene Blue questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









