L Cysteine
MaybeAn estimated 0.0% of orders come back. But the top 5 products take 77% of clicks, so L Cysteine is a Maybe.
- Flapen Score
- 50 / 100Top 44% of 14,768 Health & Household niches · +1 vs the category median of 4950
- Market size
- $396K/yr188K searches / yr
- 90-day growth
- -6.0%search demand this quarter
- Competition
- 77%top-5 click share · 9 brands · 34 sellers
Flapen Score
L Cysteine against its category
The dotted line is the Health & Household average. Past it, L Cysteine is stronger. Inside it, weaker.
Market
The L Cysteine market on Amazon at a glance
Shoppers on Amazon United States searched for L Cysteine 188K times last year and spent an estimated $396K. The top 5 brands take 86% of clicks. Flapen scores it 50 out of 100, a Maybe.
01 · Demand
An estimated 11.0% of those searches ended in a purchase.
Shoppers searched for this 188K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 11.0% of those searches ended in a purchase. Searches in the last 90 days moved -6.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $396K a year.
- Searches, last 12 months
- 188K
- Growth, 90 days vs prior 90
- -6.0%
- Conversion, latest week
- 11.0%
- Market size, estimated
- $396Ka year
- Peak month
- March1.9× the quietest month
- Top search term
- l cysteine52K searches a year
02 · Price
A sale here is worth $19.16.
Listings sell for $19.16 on average, from $10.25 to $36.60. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 1,250 to 1,500 of them. At $19.16 that is $24K to $29K a year per listing.
- Average price
- $19.16inside the $15 to $100 sweet spot
- Price range
- $10.25–$36.60
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 1,250–1,500
- Revenue per listing a year
- $24K–$29K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
69% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #1,816 within Amino Acids. It carries 2,733 reviews at 4.55 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 69%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #1,816in Amino Acids
- Average rating
- 4.55 starsAmazon United States average 4.42 stars
- Average reviews
- 2,733per listing
- Listings tracked
- 13
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 69 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 69 months
Products
Top L Cysteine products & what they sell for
Every tracked product: its share of the shelf, its reviews, and its price.
Sign in to see the products
The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.
Competition
Competition: brands, sellers & click share
The top 5 products take 77% of clicks. A locked shelf that new listings rarely crack.
Brands
9 flat
Sellers
34
Top-5 brand share
86%
Top 20: 100%
Top-5 click share
77%
Top 20: 100%
Open market
8%
- Brand 139%
- Brand 221%
- Brand 313%
- Brand 47%
- Brand 56%
- Brand 66%
- Open — no brand owns it (3 brands, 8%)
Demand
L Cysteine search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.9×
Search terms
Top L Cysteine search terms shoppers use
The exact words shoppers type, with yearly volume, growth, and conversion.
- l cysteine52K/yr
- l-cysteine40K/yr
- cysteine24K/yr
- l cysteine supplement19K/yr
- l-cysteine supplement10K/yr
- cystine8K/yr
- cysteine supplement12K/yr
- lcysteine7K/yr
- cisteina3K/yr
- l cystine5K/yr
Reviews and returns
What reviews say buyers love and hate about L Cysteine
We read the reviews and the return reasons for every product selling here.
“strong plastic smell”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
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Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common L Cysteine questions
Answered from the same tracked data.









