Nac Supplement
MaybeAn estimated 0.0% of orders come back. But the top 5 products take 81% of clicks, so Nac Supplement is a Maybe.
- Flapen Score
- 52 / 100Top 33% of 2,035 Health & Personal Care niches · +4 vs the category median of 4852
- Market size
- £760K/yr440K searches / yr
- 90-day growth
- -16.5%search demand this quarter
- Competition
- 81%top-5 click share · 10 brands · 26 sellers
Flapen Score
Nac Supplement against its category
The dotted line is the Health & Personal Care average. Past it, Nac Supplement is stronger. Inside it, weaker.
Market
The Nac Supplement market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Nac Supplement 440K times last year and spent an estimated £760K. The top 5 brands take 81% of clicks. Flapen scores it 52 out of 100, a Maybe.
01 · Demand
An estimated 12.8% of those searches ended in a purchase.
Shoppers searched for this 440K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 12.8% of those searches ended in a purchase. Searches in the last 90 days moved -16.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated £760K a year.
- Searches, last 12 months
- 440K
- Growth, 90 days vs prior 90
- -16.5%
- Conversion, latest week
- 12.8%
- Market size, estimated
- £760Ka year
- Peak month
- January1.5× the quietest month
- Top search term
- nac supplement185K searches a year
02 · Price
A sale here is worth £13.53.
Listings sell for £13.53 on average, from £6.97 to £32.00. Amazon reports units sold in ranges. This niche sold 50K to 60K a year. The average listing sells 3,000 to 4,000 of them. At £13.53 that is £41K to £54K a year per listing.
- Average price
- £13.53under the $15 to $100 sweet spot
- Price range
- £6.97–£32.00
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 50K–60K
- Units per listing a year
- 3,000–4,000
- Revenue per listing a year
- £41K–£54K
- Returns
- 0.0%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
80% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.7% of listings are out of stock. The average listing ranks #8 within Amino Acids. It carries 1,607 reviews at 4.49 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 80%
- Prime listings
- 100%
- Out of stock, average day
- 1.7%
- Average rank
- #8in Amino Acids
- Average rating
- 4.49 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 1,607per listing
- Listings tracked
- 10
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 47 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 47 months
Products
Top Nac Supplement 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
NAC N-Acetyl-Cysteine 600mg Capsules N-Acetyl Cysteine Nutritional Supplements 180 NAC Capsules - Nac Supplement High Bioavailability Amino Acid - Vegan Friendly - Made in UK by New Leaf
- Price
- £7.73
- Rating
- 4.5/5
- Reviews
- 526
- Age
- 1y ago

NAC N-Acetyl-Cysteine 600mg | 150 Capsules | Vegan N-Acetyl-Cysteine Nutritional Supplements| 5 Months Supply* | Better Bioavailable & Letter Box Friendly | UK Manufactured by Prowise Healthcare
- Price
- £7.73
- Rating
- 4.5/5
- Reviews
- 3,663
- Age
- 9y ago

NAC N-Acetyl-Cysteine 600mg - 180 Capsules (6 Months Supply) - 1 per Day - Vegan & GMP-Certified NAC Supplement - Precursor to Glutathione - N-Acetyl-Cysteine Nutritional Supplements - Made in Europe
- Price
- £13.87
- Rating
- 4.5/5
- Reviews
- 3,083
- Age
- 5y ago

Solgar NAC (N-Acetyl-L-Cysteine) 600 Mg Vegetable Capsules - Pack of 60 - Healthy Skin Hair and Nails - Vegan
- Price
- £15.16
- Rating
- 4.6/5
- Reviews
- 825
- Age
- 16y ago

NAC Supplement 1200mg Daily Serving 120 Vegan Capsules 2-Month Supply High Strength N-Acetyl-Cysteine for Daily Use UK Made Non-GMO Gluten-Free Dairy-Free High Bioavailability Formula
- Price
- £6.97
- Rating
- 4.3/5
- Reviews
- 147
- Age
- 5y ago
Trending
estimated 90-day click momentum
NAC N-Acetyl-Cysteine 600mg Capsules N-Acetyl Cysteine Nutritional Supplements 180 NAC Capsules - Nac Supplement High Bioavailability Amino Acid - Vegan Friendly - Made in UK by New Leaf
- Price
- £7.73
- Rating
- 4.5/5
- Reviews
- 526
- Age
- 1y ago

Pure Encapsulations NAC 600mg - Pure N-Acetyl-L-Cysteine for Glutathione Synthesis Support - 90 Capsules
- Price
- £32.00
- Rating
- 4.5/5
- Reviews
- 137
- Age
- 8y ago

Solgar NAC (N-Acetyl-L-Cysteine) 600 Mg Vegetable Capsules - Pack of 60 - Healthy Skin Hair and Nails - Vegan
- Price
- £15.16
- Rating
- 4.6/5
- Reviews
- 825
- Age
- 16y ago

Toniiq 1300mg NAC - 2 Month Supply - Min. 98%+ Tested Purity - Ultra High Strength Bioavailable NAC Cysteine Supplement - 120 Vegetarian N Acetyl Cysteine Capsules -Lab Tested TQ
- Price
- £14.70
- Rating
- 4.6/5
- Reviews
- 1,247
- Age
- 1y ago

N-Acetyl Cysteine (NAC) 600 mg 120 Capsules - UK Manufactured and Suitable for Vegans & Vegetarians
- Price
- £11.92
- Rating
- 4.5/5
- Reviews
- 1,345
- Age
- 8y ago
Newest
by launch date
NAC N-Acetyl-Cysteine 600mg Capsules N-Acetyl Cysteine Nutritional Supplements 180 NAC Capsules - Nac Supplement High Bioavailability Amino Acid - Vegan Friendly - Made in UK by New Leaf
- Price
- £7.73
- Rating
- 4.5/5
- Reviews
- 526
- Age
- 1y ago

Toniiq 1300mg NAC - 2 Month Supply - Min. 98%+ Tested Purity - Ultra High Strength Bioavailable NAC Cysteine Supplement - 120 Vegetarian N Acetyl Cysteine Capsules -Lab Tested TQ
- Price
- £14.70
- Rating
- 4.6/5
- Reviews
- 1,247
- Age
- 1y ago

VitaBright NAC Supplement | 600mg | 180 Capsules | Acetylcysteine Nutritional Supplements | Swallow or Twist Open Capsules of Powder | Pure Clean NAC N-Acetyl-Cysteine Supplement
- Price
- £12.01
- Rating
- 4.5/5
- Reviews
- 648
- Age
- 2y ago

NAC N-Acetyl-Cysteine 600mg - 180 Capsules (6 Months Supply) - 1 per Day - Vegan & GMP-Certified NAC Supplement - Precursor to Glutathione - N-Acetyl-Cysteine Nutritional Supplements - Made in Europe
- Price
- £13.87
- Rating
- 4.5/5
- Reviews
- 3,083
- Age
- 5y ago

NAC Supplement 1200mg Daily Serving 120 Vegan Capsules 2-Month Supply High Strength N-Acetyl-Cysteine for Daily Use UK Made Non-GMO Gluten-Free Dairy-Free High Bioavailability Formula
- Price
- £6.97
- Rating
- 4.3/5
- Reviews
- 147
- Age
- 5y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 81% of clicks. A locked shelf that new listings rarely crack.
Brands
10 falling
Sellers
26
Est. top-5 brand share
81%
Top 20: 100%
Est. top-5 click share
81%
Top 20: 100%
Open market
14%
- NEW LEAF PRODUCTS40%
- PH PROWISE Healthcare17%
- WeightWorld9%
- Solgar8%
- Multivita7%
- VitaBright5%
- Open — no brand owns it (4 brands, 14%)
Demand
Nac Supplement search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.5×
Search terms
Top Nac Supplement search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- nac supplement185K/yr
- nac158K/yr
- augmented nac11K/yr
- nac n-acetyl-cysteine 600mg18K/yr
- nac 600mg10K/yr
- n acetyl cysteine13K/yr
- n-acetylcysteine10K/yr
- n-acetyl-cysteine nutritional supplements8K/yr
- l cysteine3K/yr
- n-acetyl cysteine6K/yr
Reviews and returns
What reviews say buyers love and hate about Nac Supplement
We read the reviews and the return reasons for every product selling here.
“Smells like plastic”
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 Supplement 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









