Nac 1000mg
FailDemand is soft, at -8.6% this quarter, so Nac 1000mg is a Fail.
- Flapen Score
- 48 / 100Ranks 7,720 of 14,768 Health & Household niches · −1 vs the category median of 4948
- Market size
- $194K/yr70K searches / yr
- 90-day growth
- -8.6%search demand this quarter
- Competition
- 72%top-5 click share · 10 brands · 40 sellers
Flapen Score
Nac 1000mg against its category
The dotted line is the Health & Household average. Past it, Nac 1000mg is stronger. Inside it, weaker.
Market
The Nac 1000mg market on Amazon at a glance
Shoppers on Amazon United States searched for Nac 1000mg 70K times last year and spent an estimated $194K. The top 5 brands take 86% of clicks. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 12.2% of those searches ended in a purchase.
Shoppers searched for this 70K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 12.2% of those searches ended in a purchase. Searches in the last 90 days moved -8.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $194K a year.
- Searches, last 12 months
- 70K
- Growth, 90 days vs prior 90
- -8.6%
- Conversion, latest week
- 12.2%
- Market size, estimated
- $194Ka year
- Peak month
- January1.7× the quietest month
- Top search term
- nac 1000mg33K searches a year
02 · Price
A sale here is worth $22.55.
Listings sell for $22.55 on average, from $8.22 to $53.64. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 500 to 750 of them. At $22.55 that is $11K to $17K a year per listing.
- Average price
- $22.55inside the $15 to $100 sweet spot
- Price range
- $8.22–$53.64
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 10K–13K
- Units per listing a year
- 500–750
- Revenue per listing a year
- $11K–$17K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
79% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.4% of listings are out of stock. The average listing ranks #97 within Amino Acids. It carries 3,759 reviews at 4.57 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 79%
- Prime listings
- 100%
- Out of stock, average day
- 1.4%
- Average rank
- #97in Amino Acids
- Average rating
- 4.57 starsAmazon United States average 4.42 stars
- Average reviews
- 3,759per listing
- Listings tracked
- 14
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 60 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
- 60 months
Products
Top Nac 1000mg products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
NOW Foods Supplements NAC (N-Acetyl-Cysteine) 1 000 mg Free Radical Protection* 120 Tablets
- Price
- $18.36
- Rating
- 4.6/5
- Reviews
- 14,857
- Age
- 12y ago

BulkSupplements.com NAC 1000 mg Capsules - N-Acetyle Cysteine 1000mg NAC Supplement NAC1000mg - NAC Capsules Gluten Free - 2 Capsules per Serving 180-Day Supply 360 Capsules
- Price
- $20.65
- Rating
- 4.5/5
- Reviews
- 1,055
- Age
- 3y ago

Now Foods Supplements NAC (N-Acetyl-Cysteine) 1 000 mg Free Radical Protection* 60 Tablets
- Price
- $10.92
- Rating
- 4.6/5
- Reviews
- 14,857
- Age
- 3y ago

Nutricost N-Acetyl L-Cysteine (NAC) 1000mg 240 Vegan Tablets Gluten-Free
- Price
- $22.43
- Rating
- 4.4/5
- Reviews
- 210
- Age
- 1y ago

Nutricost N-Acetyl L-Cysteine (NAC) 1000mg 120 Vegan Tablets Gluten Free
- Price
- $17.27
- Rating
- 4.6/5
- Reviews
- 97
- Age
- 1y ago
Trending
estimated 90-day click momentum
Nutricost N-Acetyl L-Cysteine (NAC) 1000mg 120 Vegan Tablets Gluten Free
- Price
- $17.27
- Rating
- 4.6/5
- Reviews
- 97
- Age
- 1y ago

Nutricost N-Acetyl L-Cysteine (NAC) 1000mg 240 Vegan Tablets Gluten-Free
- Price
- $22.43
- Rating
- 4.4/5
- Reviews
- 210
- Age
- 1y ago

NaturaLife Labs N-Acetyl-L-Cysteine (NAC) 1600 mg 100 Capsules - Vegan Non-GMO & Gluten-Free
- Price
- $15.68
- Rating
- 4.7/5
- Reviews
- 754
- Age
- 2y ago

PROTOCOL FOR LIFE BALANCE NAC N-Acetyl Cysteine 1000mg - Glutathione Production & Respiratory Function - 120 Tabs
- Price
- $35.65
- Rating
- 4.6/5
- Reviews
- 194
- Age
- 11y ago

Pure Encapsulations NAC 900 mg - N-Acetyl Cysteine Amino Acid Supplement for Lung & Immune Support Liver & Antioxidants* - 120 Capsules
- Price
- $53.64
- Rating
- 4.8/5
- Reviews
- 1,482
- Age
- 20y ago
Newest
by launch date
Nutricost N-Acetyl L-Cysteine (NAC) 1000mg 240 Vegan Tablets Gluten-Free
- Price
- $22.43
- Rating
- 4.4/5
- Reviews
- 210
- Age
- 1y ago

Nutricost N-Acetyl L-Cysteine (NAC) 1000mg 120 Vegan Tablets Gluten Free
- Price
- $17.27
- Rating
- 4.6/5
- Reviews
- 97
- Age
- 1y ago

NaturaLife Labs N-Acetyl-L-Cysteine (NAC) 1600 mg 100 Capsules - Vegan Non-GMO & Gluten-Free
- Price
- $15.68
- Rating
- 4.7/5
- Reviews
- 754
- Age
- 2y ago

BulkSupplements.com NAC 1000 mg Capsules - N-Acetyle Cysteine 1000mg NAC Supplement NAC1000mg - NAC Capsules Gluten Free - 2 Capsules per Serving 180-Day Supply 360 Capsules
- Price
- $20.65
- Rating
- 4.5/5
- Reviews
- 1,055
- Age
- 3y ago

Carlyle NAC Supplement N-Acetyl Cysteine 1000mg | 80 Capsules
- Price
- $8.22
- Rating
- 4.5/5
- Reviews
- 489
- Age
- 3y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 72% of clicks. A locked shelf that new listings rarely crack.
Brands
10 falling
Sellers
40
Est. top-5 brand share
86%
Top 20: 100%
Est. top-5 click share
72%
Top 20: 100%
Open market
11%
- NOW Foods49%
- Nutricost16%
- BulkSupplements13%
- Pure Encapsulations4%
- Deal Supplement4%
- Double Wood Supplements3%
- Open — no brand owns it (4 brands, 11%)
Demand
Nac 1000mg search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.7×
Search terms
Top Nac 1000mg search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- nac 1000mg33K/yr
- nac supplement 1000mg14K/yr
- nac 10005K/yr
- n acetyl cysteine 1000mg5K/yr
- nac tablets7K/yr
- nac 1000mg capsules3K/yr
- nac 1000 mg3K/yr
Reviews and returns
What reviews say buyers love and hate about Nac 1000mg
We read the reviews and the return reasons for every product selling here.
“Horrible 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.
17 topics
Keep looking
Related niches
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 Nac 1000mg questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









